LTECH

ATOM LED stocks LTech controllers, DMX decoders, and DALI-2 drivers from our Telford warehouse — DALI-2 DT6/DT8 certified, T-PWM dimming to 0.01%, and PWM frequencies up to 18 kHz. Free UK delivery on 97% of products, with technical support available Monday to Friday, 9 am to 5 pm on 01952 370028.

DALI-2 DT6/DT8 · DMX512/RDM · 0-10V · T-PWM 0.01% depth · PWM 2 kHz–18 kHz · 16-bit greyscale · IEC 62386 · IEEE 1789 flicker-free · 5-year warranty · Free UK delivery

1. Why specify LTech controllers for commercial LED projects?
2. What control protocols do LTech controllers support?
3. How does T-PWM dimming differ from standard PWM?
4. Which LTech DALI-2 driver should you choose?
5. How do LTech DMX512 decoders work with LED strip?
6. What PWM frequency should you set on an LTech controller?
7. How do you wire an LTech controller to COB LED strip?
8. What is the difference between constant voltage and constant current LTech drivers?
9. Can LTech controllers dim RGB and RGBW LED strip?
10. How do LTech controllers compare to other brands in 2026?
11. What mistakes do installers make when specifying LTech controllers?
12. Why buy LTech LED controllers from ATOM LED?
13. Frequently asked questions — LTech LED controllers

Quick decision summary: If you need DALI-2 dimming for a commercial fit-out with architectural-grade flicker-free performance, specify an LTech DALI-2 CV driver. If you are running DMX512 colour-changing scenes on RGB or RGBW COB strip, use an LTech DMX decoder paired with a non-dimmable constant voltage power supply. For simple single-zone residential dimming, an LTech 0-10V interface or RF dimmer set may be the most cost-effective option.

Who this is for: Electrical contractors, lighting designers, M&E consultants, and AV integrators specifying commercial or architectural LED control systems in the UK during 2026. Also suited to experienced DIY installers who want specification-grade dimming quality rather than budget-tier flicker.

Who this is NOT for: If you need a simple plug-and-play RF remote for a single room of LED strip, an entry-level LED controller will do the job at lower cost. LTech products are engineered for projects where dimming depth, protocol compliance, and long-term reliability justify the specification.

Common buying mistakes to avoid

• Using a dimmable driver with RGB or RGBW strip: RGB and RGBW COB strip requires a non-dimmable constant voltage driver feeding an LTech DMX or DALI decoder — the decoder handles the dimming, not the driver. Using a dimmable driver causes flicker, colour shift, and premature failure of both driver and strip.
• Mixing control ecosystems: An LTech RF remote will not pair with a non-LTech receiver, and vice versa. Each manufacturer uses proprietary RF coding. Stay within the LTech ecosystem or use open protocols such as DALI-2 or DMX512 for cross-brand compatibility.
• Specifying DALI (version 1) when DALI-2 is required: Most 2026 commercial specifications now call for DALI-2 (IEC 62386 Part 2xx) with DiiA certification. LTech DALI-2 drivers carry full DiiA certification — check the specification before ordering legacy DALI products.
• Ignoring PWM frequency for camera-visible installations: Retail, hospitality, and broadcast environments need a minimum 2 kHz PWM frequency to eliminate visible flicker on camera. LTech controllers offer selectable frequencies up to 18 kHz, but the default on some models ships lower — always confirm the setting during commissioning.

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Why specify LTech controllers for commercial LED projects?

LTech controllers are specified on commercial and architectural LED projects because they combine DALI-2 DiiA-certified compliance, T-PWM dimming to 0.01% depth, and selectable PWM frequencies up to 18 kHz within a single product ecosystem. This combination eliminates visible flicker under camera, meets IEEE 1789 standards, and supports every major wired control protocol used in UK commercial lighting in 2026.

The core reason lighting designers and M&E consultants specify LTech over budget-tier controllers is the T-PWM dimming curve. Standard PWM dimming cuts the LED on and off at a fixed frequency — at low brightness levels, this creates visible flicker, particularly on camera. LTech's proprietary T-PWM technology modulates both the pulse width and the timing pattern, achieving dimming depths as low as 0.01% without the perceptible stutter that plagues cheaper decoders.

For contractors working on UK commercial projects, the practical benefits are measurable:

• Flicker-free compliance: LTech controllers meet the IEEE 1789 recommended practices for flicker-free operation, which is increasingly specified in 2026 tender documents for offices, healthcare facilities, and retail environments.
• Multi-protocol flexibility: A single LTech product range covers DALI-2, DMX512/RDM, 0-10V, and phase-cut dimming — reducing the number of different manufacturers on a project BOM.
• RDM remote management: DMX decoders support the RDM protocol, allowing parameter browsing, address configuration, and equipment identification from a central console without physically accessing each unit.
• 16-bit greyscale resolution: Where 8-bit control gives 256 brightness steps, LTech's 16-bit mode provides 65,536 steps — visible as noticeably smoother transitions in architectural dimming scenes.
• NFC configuration: Newer LTech DALI-2 drivers accept NFC programming via a smartphone app, removing the need to wire a DALI bus just to set default power-on levels during pre-commissioning.

LTech has manufactured LED control products since 2001, holds ISO 9001 certification, and is a member of the Digital Illumination Interface Alliance (DiiA). The company supplies controllers to commercial projects across Europe, Asia, and the Middle East, with UK distribution through authorised stockists including ATOM LED in Telford.

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What control protocols do LTech controllers support?

LTech controllers support DALI-2 (IEC 62386 DT6 and DT8), DMX512/RDM, 0-10V analogue dimming, phase-cut (leading and trailing edge), and proprietary 2.4 GHz RF wireless control. The DALI-2 range carries full DiiA certification for interoperability with third-party DALI-2 devices on the same bus, while DMX decoders support both 3-pin XLR and RJ45 connections.

Understanding which protocol suits your project prevents costly re-wiring after installation. Here is how each protocol applies to UK LED strip and neon flex projects in 2026:

Protocol	Signal type	Max devices per bus	Best suited to	LTech product type
DALI-2 DT6	Digital, bidirectional	64 per bus	Commercial offices, retail, healthcare	CV/CC DALI-2 drivers
DALI-2 DT8	Digital, bidirectional	64 per bus	Tuneable white, RGBW architectural	Multi-channel DALI-2 drivers
DMX512/RDM	Digital, unidirectional (DMX) / bidirectional (RDM)	512 channels per universe	Architectural facades, hospitality, events	CV/CC DMX decoders
0-10V	Analogue, unidirectional	Unlimited (within cable capacity)	Simple commercial dimming zones	0-10V dimmable drivers
Phase-cut	AC mains modulation	1 per circuit (typically)	Residential retrofit, small commercial	Triac dimmable drivers
2.4 GHz RF	Wireless, proprietary	Varies by zone setup	Residential, small retail	M-series RF controllers

DALI-2 is the dominant specification on new UK commercial builds during 2026, particularly in offices, healthcare, and education. The bidirectional bus allows status feedback — you can query an LTech DALI-2 driver for its current output level, lamp failure status, and operating hours from a central BMS, which is increasingly required for BREEAM-rated buildings.

DMX512 remains the standard for colour-changing architectural installations, events, and media facades. LTech DMX decoders convert the digital DMX signal into PWM output to drive RGBW COB LED strip or LED neon flex. The RDM extension adds bidirectional communication for remote commissioning, which saves hours on large-scale installations where decoders are mounted in inaccessible locations.

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How does T-PWM dimming differ from standard PWM?

Standard PWM switches the LED fully on and off at a fixed frequency, creating visible flicker at low brightness levels, particularly on camera. LTech's proprietary T-PWM technology modulates both pulse width and timing pattern simultaneously, achieving a dimming depth of 0.01% — approximately 100 times deeper than most standard PWM controllers — while meeting the IEEE 1789 high-frequency exemption level for flicker-free lighting.

The difference is most apparent below 5% brightness. With standard PWM at 1 kHz, the LED spends increasingly long periods in its off state between pulses. The human eye does not always detect this, but cameras recording at 25–60 fps capture the on-off cycle as banding or strobing. In retail environments, hospitality, or any space where video content is created, this is a commissioning failure.

LTech's T-PWM solves this with a dual-layer approach:

• Variable frequency modulation: Rather than maintaining a fixed PWM frequency, T-PWM adjusts the frequency dynamically as brightness decreases, keeping the perceived flicker below the detection threshold of both the human eye and standard camera sensors.
• 0.01% dimming floor: Where most controllers bottom out at 1% or 5% before switching off entirely, T-PWM maintains smooth control down to 0.01%, allowing architectural scenes with extremely low ambient glow — useful for cinema rooms, gallery lighting, and hotel corridors.
• High-frequency exemption: At standard operating levels, LTech controllers run at frequencies that meet the IEEE 1789 high-frequency exemption threshold, meaning the flicker percentage is too low to cause biological effects such as headache or eye strain even under prolonged exposure.

For UK specifiers writing tender documents in 2026, T-PWM provides a measurable specification point. Rather than stating "flicker-free" without evidence, you can cite the IEEE 1789 compliance and the 0.01% dimming depth as quantifiable performance criteria that distinguish a specification-grade installation from a budget one.

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Which LTech DALI-2 driver should you choose?

Choose an LTech DALI-2 DT6 constant voltage driver for single-colour LED strip dimming on commercial projects, a DT8 driver for tuneable white (CCT) or RGBW colour-changing installations, and a constant current DALI-2 driver for downlights or linear LED modules that require a regulated mA output. All LTech DALI-2 drivers carry DiiA certification and support NFC pre-commissioning via smartphone.

The DALI-2 standard splits device types into numbered categories. The two most relevant to LED strip and neon flex installations are:

DALI-2 device type	Function	Typical LED strip application	LTech driver example	Key specification
DT6	Single-channel brightness control	Single-colour COB strip, warm white neon flex	LM-150-24-G1D2	150W, 24V CV, NFC configurable
DT8	Multi-channel colour/CCT control	RGBW COB strip, tuneable white installations	LM-150-24-G4K3	150W, 24V CV, 4-channel RGBW, DMX + DALI-2
DT6 (CC)	Constant current single-channel	LED modules, downlights, linear fixtures	SE-30-200-800-W2D	30W, 200-800mA adjustable via NFC

When specifying for 24V single-colour COB strip, the LTech DT6 constant voltage driver is the standard choice. It connects directly to the DALI-2 bus, receives brightness commands from the building management system, and outputs a stable 24V DC to the strip. The NFC configuration feature allows you to set default power-on levels, fade rates, and DALI short addresses before the driver is even wired into the DALI bus — a significant time saving on large projects with dozens of drivers.

For RGBW COB strip installations, the DT8 multi-channel driver handles colour mixing directly from the DALI-2 bus. The LM-150-24-G4K3 model accepts both DMX512/RDM and DALI-2 DT8 signals, giving the specifier flexibility to switch protocols without changing hardware. It achieves 93% energy efficiency with a power factor above 0.98, meeting the EU ErP directive with standby consumption below 0.5W.

Critical point for RGBW installations: the LTech DALI-2 DT8 driver is a non-dimmable constant voltage supply with integrated decoding. Do not place a separate dimmable driver upstream — the DALI-2 decoder within the driver handles all dimming. Adding a second layer of dimming causes flicker, colour shift, and premature failure.

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How do LTech DMX512 decoders work with LED strip?

LTech DMX512 decoders receive a digital DMX512 signal from a lighting console or architectural controller and convert it into PWM output that directly drives constant voltage LED strip. The decoder sits between the non-dimmable power supply and the LED strip, translating DMX channel values (0-255 per channel in 8-bit, or 0-65,535 in 16-bit) into proportional brightness levels on each output channel.

The signal chain for a typical DMX-controlled LED strip installation works as follows:

1. DMX source sends the signal: A DMX512 console, architectural controller, or ArtNet node outputs the DMX data stream via 3-pin XLR, 5-pin XLR, or RJ45 cable to the LTech decoder.
2. Decoder receives and processes: The LTech decoder reads its assigned DMX start address and channel count, then converts the digital values into PWM output signals at the user-selected frequency.
3. Non-dimmable driver provides power: A separate non-dimmable constant voltage LED power supply feeds the decoder's power input terminals at the correct voltage (typically 12V, 24V, or 48V DC).
4. Decoder drives the strip: The decoder's output terminals connect directly to the LED strip. Each output channel independently controls one colour channel of the strip — single colour uses 1 channel, RGB uses 3, RGBW uses 4.
5. RDM feedback (optional): If using RDM-compatible decoders and an RDM master, you can remotely query and configure each decoder's DMX address, PWM frequency, and operating mode without physical access.

LTech offers DMX decoders ranging from compact 3-channel units for single RGB zones to 12-channel high-power decoders for multi-zone architectural installations. The LT-912 model, for example, handles 12 channels of output with up to 1,152W total capacity and supports three types of DMX connectors: 3-pin XLR, RJ45, and screw terminal — with built-in signal amplification on the screw terminal output.

This is particularly relevant for long COB LED strip runs on architectural projects. Rather than running individual DMX cables to each zone, you can daisy-chain decoders and use the signal amplification function to maintain clean DMX data over extended cable distances. Always wire LED strip in parallel from each decoder output — series wiring multiplies voltage drop and creates uneven brightness across the run.

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What PWM frequency should you set on an LTech controller?

Set a minimum of 2 kHz PWM frequency for any installation visible to cameras or in commercial environments where flicker sensitivity is a concern. For broadcast studios, retail with video surveillance, and hospitality environments where guests film on smartphones, 3.6 kHz or higher eliminates all visible banding. LTech controllers offer selectable frequencies from 300 Hz to 18 kHz, covering every application from basic residential to professional broadcast.

PWM frequency determines how many times per second the LED switches fully on and off. At lower frequencies, the switching is perceptible — either directly by the human eye (below approximately 200 Hz in peripheral vision) or by camera sensors (below approximately 2 kHz at standard frame rates). Here is a practical guide to frequency selection based on application:

PWM frequency	Application suitability	Flicker visible to eye?	Flicker visible on camera?
300–600 Hz	Basic residential only	No (for most people)	Yes — banding on video
1.2–1.8 kHz	Standard commercial	No	Possible at high shutter speeds
2.4–3.6 kHz	Retail, hospitality, offices	No	No at standard frame rates
7.2–10.8 kHz	Broadcast, film sets, galleries	No	No even at high frame rates
14.4–18 kHz	Medical, laboratory, specialist	No	No under any condition

There is a trade-off: higher PWM frequencies produce marginally more electromagnetic interference (EMI) and can reduce the effective dimming range on some LED types. In practice, 3.6 kHz is the frequency most commonly specified on UK commercial projects during 2026 — it eliminates camera flicker without the EMI complications of very high frequencies.

On LTech DMX decoders such as the D4B, the PWM frequency is set via the front-panel digital display and buttons. On DALI-2 drivers with NFC, the frequency can be configured via the LTech smartphone app before installation. Always document the PWM frequency in your commissioning records — it is one of the most common causes of call-backs when left at factory default.

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How do you wire an LTech controller to COB LED strip?

Wire an LTech controller between the non-dimmable constant voltage power supply and the COB LED strip, connecting the driver's DC output to the controller's power input, then running the controller's channel outputs to the strip's corresponding positive and negative terminals. Always use parallel wiring from the controller to each strip run, and never power strip while it is still coiled on the reel.

The wiring method depends on whether you are installing single-colour dimming or multi-channel colour control. Follow these steps for a typical RGBW COB strip installation with an LTech DMX decoder:

1. Calculate total wattage: Measure your total strip length in metres and multiply by the wattage per metre stated on the product specification. Add a 20% headroom margin to determine the minimum driver and decoder capacity required. For a 10 m run of 14.4 W/m RGBW COB strip, that is 144W plus 20% = approximately 173W minimum.
2. Select a non-dimmable constant voltage driver: Choose an appropriately rated 24V LED driver or 48V LED driver that meets or exceeds your calculated wattage. The driver must be non-dimmable for RGB and RGBW installations — dimmable drivers cause flicker and colour shift when used upstream of a decoder.
3. Connect driver to decoder power input: Run 24V or 48V DC from the driver output to the LTech decoder's V+ and V- power input terminals. Use cable rated for the current — 1.5 mm2 minimum for runs under 5 m at 24V, 2.5 mm2 for longer distances.
4. Connect DMX signal cable: Run a DMX512 cable (shielded twisted pair, 120-ohm impedance) from your DMX console or controller to the decoder's DMX input. Use 3-pin XLR or RJ45 depending on the decoder model. Terminate the last decoder on the chain with a 120-ohm termination resistor if the run exceeds 5 m.
5. Wire decoder outputs to strip: Connect the decoder's R, G, B, and W output channels to the corresponding colour wires on the RGBW COB strip, plus the common positive (V+). Always wire in parallel — run separate cables from the decoder to each strip section rather than daisy-chaining strip end-to-end beyond the manufacturer's maximum single-feed distance.
6. Set DMX address and channel mode: Power on the decoder and use the front-panel controls or RDM to set the starting DMX address and channel configuration (4-channel for RGBW). Set the PWM frequency to a minimum of 2 kHz for commercial installations.
7. Test before final mounting: Uncoil the strip fully and lay it flat on a clean, non-metallic surface before applying power. Strips must never be powered while coiled — heat accumulates, destroys the adhesive backing, and creates a fire risk. Never mount strip directly on bare metal without an insulating layer such as an aluminium profile with its anodised coating — bare metal contact causes short circuits between solder pads.

For single-colour dimming, the wiring is simpler: the LTech controller or DALI-2 driver sits between the mains supply and the strip, outputting a single dimmed DC channel. The same parallel wiring and coiling rules apply. ATOM LED's technical team can advise on cable sizing and driver selection for your specific run lengths — call 01952 370028 or email operations@atomled.co.uk.

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What is the difference between constant voltage and constant current LTech drivers?

Constant voltage (CV) LTech drivers output a fixed voltage (typically 12V, 24V, or 48V DC) and allow the connected LED strip to draw whatever current it needs, making them the correct choice for LED strip and neon flex. Constant current (CC) drivers output a fixed milliamp value (such as 350 mA or 700 mA) regardless of voltage fluctuation, and are designed for LED modules, downlights, and linear fixtures with integrated current-limiting resistors on each LED cluster.

Choosing the wrong driver type is one of the most common specification errors on UK LED projects. The consequences range from dim, underperforming strip (CC driver on CV strip) to immediate component failure (CV driver on CC-only fixtures).

• Use constant voltage for LED strip and neon flex: All ATOM LED LED strip lights and neon flex products require constant voltage input. The strip's PCB contains its own current-limiting resistors for each LED cluster, so it needs a stable voltage source and regulates current internally.
• Use constant current for discrete LED modules and downlights: Fixtures without on-board current regulation — such as COB chip-on-board modules and certain architectural downlights — need a constant current driver to prevent thermal runaway and premature failure.
• Never mix the two: A constant current driver connected to constant voltage LED strip will either severely under-drive the strip (producing dim, uneven output) or damage the strip's internal resistors. A constant voltage driver connected to a constant current fixture will overdrive the LEDs until they fail.

LTech labels its drivers clearly — CV models carry voltage ratings (e.g., "24V 150W"), while CC models show current ratings (e.g., "500-1750mA 75W"). When ordering from ATOM LED, confirm whether your LED product requires CV or CC input before selecting a driver. Our technical team on 01952 370028 can verify compatibility for any combination of strip and driver.

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Can LTech controllers dim RGB and RGBW LED strip?

Yes, LTech controllers are specifically designed to dim RGB and RGBW LED strip — but the controller must be a dedicated RGB/RGBW decoder or driver, not a single-channel dimmer. The controller handles all colour mixing and dimming through its multi-channel PWM outputs, fed by a separate non-dimmable constant voltage power supply. Never use a dimmable driver upstream of an RGB or RGBW controller — doing so causes flicker, colour shift, and premature component failure.

The signal chain for RGB and RGBW dimming with LTech controllers is fundamentally different from single-colour dimming:

• Single-colour dimming: Mains supply enters a dimmable driver (DALI-2, 0-10V, or triac), which outputs a dimmed DC voltage directly to the strip. One component handles both power conversion and dimming.
• RGB/RGBW dimming: Mains supply enters a non-dimmable constant voltage driver, which outputs full-brightness DC to the LTech decoder or controller. The decoder then independently modulates each colour channel (R, G, B, and optionally W) via PWM, based on commands received over DMX512, DALI-2 DT8, or RF wireless.

This two-stage architecture is non-negotiable for correct operation. The LTech decoder must receive stable, un-dimmed DC power to function correctly. If the input voltage fluctuates because a dimmable driver is modulating it, the decoder cannot maintain accurate colour mixing — reds shift towards orange, blues become unstable, and the dedicated white channel on RGBW strip loses its colour temperature accuracy.

RGB strip cannot produce clean white light — the combined output of red, green, and blue LEDs produces a cold, violet-tinged approximation. RGBW COB strip solves this with a dedicated white LED channel that produces true warm, natural, or cool white independently of the RGB channels. LTech's 4-channel decoders and DT8 DALI-2 drivers support this RGBW configuration natively.

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How do LTech controllers compare to other brands in 2026?

In 2026, LTech positions as a specification-grade manufacturer with DiiA-certified DALI-2 compliance, T-PWM 0.01% dimming, and IEEE 1789 flicker-free performance. Compared to competing brands available through UK suppliers, LTech typically offers deeper dimming, higher PWM frequency options, and broader protocol coverage — though at a price point above entry-level alternatives that reflects the engineering difference.

The UK LED controller market in 2026 broadly splits into three tiers. Understanding where LTech sits helps you match the specification to the project budget:

Feature	Budget-tier controllers	Mid-range controllers	LTech specification-grade
Dimming depth	5–10%	1–5%	0.01% (T-PWM)
PWM frequency range	500 Hz–1 kHz (fixed)	1–4 kHz (limited selection)	300 Hz–18 kHz (fully selectable)
Greyscale resolution	8-bit (256 levels)	8-bit / 12-bit	8-bit / 16-bit (65,536 levels)
DALI-2 DiiA certified	No	Some models	Full DiiA certification
RDM support	No	Rarely	Yes, across DMX range
NFC pre-commissioning	No	No	Yes, via smartphone app
IEEE 1789 compliance	Not tested	Some models	Full compliance documented
Typical UK price point	Lower	Medium	Higher — reflects specification

For simple residential projects where a homeowner wants to dim a kitchen under-cabinet strip, a budget RF controller does the job. But on a 2026 commercial tender where the specification calls for DALI-2 DiiA-certified control gear, IEEE 1789 flicker compliance, and RDM remote management, LTech is one of relatively few manufacturers that can document compliance across all three requirements.

ATOM LED stocks both entry-level controllers and LTech specification-grade products. Our team on 01952 370028 can help you match the right tier to your project's technical requirements and budget constraints.

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What mistakes do installers make when specifying LTech controllers?

The most common specification errors with LTech controllers are using dimmable drivers upstream of RGB/RGBW decoders, leaving PWM frequency at factory default in camera-sensitive environments, mixing LTech RF components with other manufacturers' wireless systems, and specifying DALI version 1 products when the project requires DALI-2 DiiA certification. Each of these errors results in either call-backs, failed commissioning, or non-compliant installations.

Here are the five errors ATOM LED's technical team sees most frequently on UK projects, with the fix for each:

• Error 1 — Dimmable driver plus decoder: The installer uses a triac or DALI dimmable driver to power an LTech DMX decoder controlling RGBW strip. The dimmed input voltage causes erratic colour mixing and visible flicker. The fix: always use a non-dimmable constant voltage driver to feed the decoder. The decoder handles all dimming internally.
• Error 2 — Factory-default PWM frequency: Some LTech models ship with PWM frequency set to 600 Hz or 1.2 kHz. In a retail store or hotel lobby, security cameras and guest smartphones capture visible banding at these frequencies. The fix: set PWM to 3.6 kHz minimum during commissioning and record the setting in the handover documentation.
• Error 3 — Cross-brand RF pairing: The installer orders an LTech M-series receiver but attempts to pair it with a remote from a different manufacturer. RF remotes use proprietary coding and will not cross-pair. The fix: order matched LTech controller and remote sets, or use open protocols (DALI-2, DMX512) for multi-brand projects.
• Error 4 — Oversized decoder, undersized driver: The LTech decoder is rated for 5A per channel (potentially 480W at 24V across 4 channels), but the power supply only provides 150W. The system works at partial brightness but clips colours at full output. The fix: calculate total strip wattage at maximum brightness, add 20% headroom, then size the driver accordingly.
• Error 5 — Series wiring from decoder outputs: Rather than running individual cables from the decoder to each strip section, the installer daisy-chains strip end-to-end. Beyond the maximum single-feed distance, voltage drop causes dimming and colour temperature shift at the far end. The fix: wire every strip section in parallel back to the decoder output terminals, using appropriately rated cable for the distance.

If you are unsure about any aspect of an LTech installation, ATOM LED's technical team can review your wiring plan before you start. Call 01952 370028 or email operations@atomled.co.uk — we deal with these questions daily.

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Why buy LTech LED controllers from ATOM LED?

ATOM LED is an authorised UK stockist of LTech controllers and drivers, shipping from our Telford warehouse with free UK delivery on 97% of products. Unlike marketplace sellers, we provide direct technical support from staff who understand the full LTech ecosystem — from DALI-2 driver configuration to DMX decoder addressing — Monday to Friday, 9 am to 5 pm on 01952 370028.

Buying LTech products from a specialist LED supplier rather than a general electrical wholesaler or marketplace gives you measurable advantages:

• UK stock, not dropshipped: ATOM LED holds LTech inventory in Telford, Shropshire. Orders ship the same or next working day rather than waiting weeks for international fulfilment.
• Technical pre-sales support: Before you order, our team can verify that the LTech controller you have specified is compatible with your strip, driver, and control protocol. This prevents the most common specification errors and avoids return shipping costs.
• Full ecosystem access: ATOM LED stocks not only LTech controllers but also the LED drivers, COB LED strip, silicone profiles, and accessories needed to complete the installation — one order, one delivery, one point of contact.
• Free UK delivery: Free UK delivery on 97% of products, with no minimum spend on most items.
• Warranty support: ATOM LED backs all LTech products with a manufacturer warranty and handles any claims directly, so you are not chasing an overseas supplier for replacements.

Ready to specify? Browse the full LTech controller and driver range online, call 01952 370028 for specification advice, or email operations@atomled.co.uk with your project requirements. Free UK delivery, UK stock, technical team available Monday to Friday 9 am to 5 pm.

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Frequently asked questions — LTech LED controllers

1. What is DALI-2 and why does it matter for LTech controllers?

• DALI-2 is the current standard (IEC 62386 Part 2xx) for digital addressable lighting interfaces, replacing the original DALI standard with mandatory device interoperability testing through the DiiA certification programme.
• LTech DALI-2 drivers carry full DiiA certification, meaning they are tested to work with any other DiiA-certified device on the same DALI bus — critical for commercial projects where multiple manufacturers supply different control gear.
• For UK specifiers in 2026, DALI-2 is increasingly the default requirement on new-build offices, healthcare, and education projects, particularly where BREEAM credits require verifiable energy monitoring.

2. Do LTech DMX decoders support RDM?

• Yes, the majority of LTech DMX decoder models support RDM (Remote Device Management), which is a bidirectional extension of the DMX512 protocol.
• RDM allows you to remotely query and configure each decoder from an RDM-compatible console — including setting DMX addresses, checking firmware versions, and reading operating status — without physically accessing the unit.
• This is particularly valuable on large architectural installations where decoders are mounted in ceiling voids, facade recesses, or other locations that are difficult to access after the building envelope is closed.

3. Can I use an LTech controller with 48V LED strip?

• Yes, LTech offers DMX decoders and DALI-2 drivers rated for 48V DC input, suitable for use with 48V COB LED strip.
• 48V systems offer lower voltage drop over distance — approximately half the drop of a 24V system at the same wattage over the same cable run — making them better suited to long commercial runs of 20 m or more.
• Check the specific decoder model's voltage input range before ordering. Some LTech decoders accept 5-24V DC only, while others are rated for 12-48V DC. The product datasheet lists the exact input range.

4. What is the maximum output power of an LTech DMX decoder?

• LTech DMX decoder output capacity varies by model, from compact 3-channel units at approximately 180W total (24V) to the LT-912 12-channel decoder rated at up to 1,152W.
• Output is typically rated per channel — for example, 5A per channel at 24V gives 120W per channel, or 480W across 4 channels on a standard RGBW decoder.
• Always calculate your total strip wattage at maximum brightness and add 20% headroom before selecting a decoder. The decoder's power capacity must be matched or exceeded by the non-dimmable driver feeding it.

5. How do I set the DMX address on an LTech decoder?

• Most LTech DMX decoders feature a front-panel digital display with push buttons for setting the starting DMX address, channel mode, PWM frequency, and other parameters.
• On RDM-compatible models, you can also set the DMX address remotely from an RDM master console or software without physically touching the decoder.
• The starting address determines which DMX channels the decoder responds to. For example, an RGBW decoder set to address 1 uses channels 1-4. A second decoder set to address 5 uses channels 5-8, and so on up to the 512-channel universe limit.

6. Are LTech controllers compatible with ATOM LED COB strip?

• Yes, LTech constant voltage controllers and decoders are fully compatible with all ATOM LED 12V, 24V, and 48V COB LED strip, provided the voltage ratings match.
• For single-colour COB strip, use an LTech single-channel dimmer, DALI-2 DT6 driver, or 0-10V controller.
• For RGBW COB strip, use an LTech 4-channel DMX decoder or DALI-2 DT8 driver, fed by a non-dimmable constant voltage power supply at the correct voltage.

7. What cable should I use for DMX512 connections to LTech decoders?

• Use proper DMX512 cable — shielded twisted pair with 120-ohm characteristic impedance. Standard microphone cable (75-ohm) works over short distances but causes data errors on longer runs.
• Maximum recommended DMX cable length is 300 m per the DMX512 standard, though practical distances on site should be kept shorter and tested during commissioning.
• Terminate the last decoder on each DMX daisy-chain with a 120-ohm termination resistor between the data+ and data- pins to prevent signal reflections.

8. Can I control LTech products from a building management system?

• Yes, LTech DALI-2 drivers integrate directly with any BMS that supports the DALI-2 protocol, which includes most major systems used on UK commercial projects in 2026.
• The DALI-2 bus provides bidirectional communication, allowing the BMS to send dimming commands and receive status feedback including lamp failure, operating hours, and current output level.
• For DMX-based installations, integration typically requires a DMX gateway or ArtNet node between the BMS and the LTech decoders, as DMX512 is a lighting-specific protocol rather than a building automation standard.

9. Do LTech controllers work with tuneable white (CCT) LED strip?

• Yes, LTech offers DALI-2 DT8 drivers and DMX decoders specifically designed for tuneable white installations, controlling warm and cool white channels independently to adjust colour temperature typically between 2700K and 6500K.
• The DT8 device type allows the DALI-2 bus to send both brightness and colour temperature commands to a single driver address, simplifying control system programming compared to using two separate DT6 channels.
• NFC-configurable models allow you to preset the default colour temperature and brightness level via smartphone before the driver is wired into the DALI bus.

10. What is the standby power consumption of LTech DALI-2 drivers?

• LTech DALI-2 drivers are designed to meet the EU ErP Directive with standby power consumption below 0.5W.
• This is measured with the DALI bus powered and the driver in standby mode (LEDs off, driver listening for DALI commands).
• On large commercial installations with dozens of drivers, low standby consumption reduces the building's parasitic electrical load — a factor in both BREEAM assessments and ongoing energy costs.

11. How many LTech DALI-2 drivers can I connect on one DALI bus?

• The DALI-2 standard allows a maximum of 64 individually addressable devices per bus, each with a unique short address from 0 to 63.
• The total DALI bus current must not exceed 250 mA. Each LTech DALI-2 driver draws a small amount of bus current (typically 2 mA), so the practical limit is usually reached by the address count before the current limit.
• For installations requiring more than 64 drivers, add a second DALI bus or use a DALI-2 multi-master system to manage multiple bus segments from a single control interface.

12. Is IP-rated LTech control gear available for outdoor LED installations?

• LTech offers IP-rated drivers suitable for outdoor use, including models rated IP67 for outdoor LED strip and neon flex installations.
• Note that IP65 is surface-splash rated only and is not suitable for UK outdoor conditions or bathroom wet zones under BS7671 — specify IP67 minimum for any installation exposed to rain, ground moisture, or condensation.
• Position outdoor-rated drivers in ventilated enclosures to prevent heat build-up, and ensure cable glands maintain the IP rating at entry points.

13. Can I use LTech ArtNet-DMX converters for large-scale LED installations?

• Yes, LTech manufactures ArtNet-DMX converters that receive ArtNet data over standard Ethernet networks and output DMX512 to local decoder runs.
• ArtNet allows you to distribute DMX universes over existing Cat5e/Cat6 network infrastructure, eliminating the 300 m distance limitation of direct DMX cabling and enabling control of thousands of channels from a central location.
• This is the standard approach for large-scale architectural facade lighting, media walls, and multi-zone commercial installations where the number of DMX channels exceeds a single 512-channel universe.

14. What warranty do LTech controllers carry when purchased from ATOM LED?

• LTech controllers and drivers purchased from ATOM LED carry the manufacturer's standard warranty, with ATOM LED handling all warranty claims directly from our Telford office.
• Keep your order confirmation and any commissioning records — these are required for warranty claims and help our technical team diagnose any issues quickly.
• ATOM LED also provides pre-sales technical support to help you specify the correct products from the outset, reducing the likelihood of compatibility issues during installation.

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Why choose ATOM LED for your LED lighting project?

ATOM LED is a UK-based LED lighting specialist stocking every product in our Telford warehouse. We do not dropship from overseas suppliers. Free UK delivery on 97% of products, with typical delivery in 1 to 3 working days, backed by a 5-year warranty on all COB DC voltage strip lights.

• Cut technology: Cut ATOM LED strip at any point without voiding the warranty — no need to find cut marks in tight spaces.
• CRI90+ on all COB strip: Colours render naturally under ATOM LED strip, making it suitable for kitchens, retail displays, and any application where colour accuracy matters.
• Technical team available Monday to Friday, 9am to 5pm: Call 01952 370028 or email operations@atomled.co.uk for help with voltage selection, driver sizing, IP ratings, and installation planning.
• UK stock, not dropshipped: Every product ships from our Telford warehouse. No overseas lead times, no customs delays, no uncertainty on delivery dates.
• 20m single feed on 24V, 30m on 48V: Longer single-feed runs than most UK competitors, reducing the number of drivers and feed points required in large installations.

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Related Collections

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Last reviewed: March 2026 — ATOM LED technical team, Telford, Shropshire. Specifications current as of 2026.

🏭 UK LED specialist, Telford, Shropshire  ·  ☎️ 01952 370028  ·  🚚 Free UK delivery on 97% of products