LED Transformers & Drivers

This 2026 range includes IP20 indoor drivers for ceiling voids, pelmets, and furniture cavities, plus IP67 Waterproof drivers for outdoor gardens, bathrooms, and exposed installations. Every driver ships from our Telford warehouse with free UK delivery, backed by a 5-year warranty and technical support from a team that sizes drivers for real projects every working day.

IP20 & IP67 rated · 12V, 24V & 48V output · 10W–600W range · Constant voltage · 5-year warranty · UK stock · Free UK delivery · Technical support 01952 370028

On this page:

1. What is the difference between an LED driver and an LED transformer?
2. How do you calculate the correct driver wattage for LED strip?
3. Which voltage do you need — 12V, 24V, or 48V?
4. When should you choose IP20 versus IP67 LED drivers?
5. Do you need a dimmable or non-dimmable LED driver?
6. How do you wire an LED driver to strip lights step by step?
7. What causes LED driver buzzing, flickering, and premature failure?
8. How does thermal derating affect driver sizing in sealed spaces?
9. What cable size should you use from driver to LED strip?
10. How long do LED drivers last and what affects their lifespan?
11. Frequently asked questions about LED transformers and drivers
12. Why choose ATOM LED for your LED driver project?

Quick decision summary: If you need to power single-colour LED strip with a mains wall dimmer, choose a TRIAC dimmable driver. If you are running RGB, RGBW, or any strip through a controller, use a non-dimmable constant voltage driver. For indoor ceiling voids and furniture, IP20 is correct. For outdoor, bathroom, or any wet environment, specify IP67. If your total strip wattage exceeds 80% of a single driver, split across two drivers rather than running one at maximum capacity.

Who this is for: electricians specifying drivers for residential and commercial LED strip installations, kitchen and bathroom designers sizing power supplies for under-cabinet and task lighting, landscape professionals powering outdoor neon flex and garden strip, and homeowners replacing failed or undersized LED transformers.

Who this is NOT for: anyone looking for constant current drivers for LED panels or downlights — this range is constant voltage only, designed for LED strip and neon flex. If you need an LED controller for colour changing or dimming on the DC side, browse our LED controller range instead.

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What is the difference between an LED driver and an LED transformer?

In the LED strip lighting industry, the terms driver and transformer are used interchangeably to describe the same device — a switched-mode power supply that converts 230V AC mains electricity to a fixed low-voltage DC output (typically 12V, 24V, or 48V). Technically, a traditional transformer only changes voltage, while an LED driver also regulates the output to maintain constant voltage under varying loads. Every unit in this range is a constant voltage LED driver.

The terminology confusion causes real problems when specifying products. Here is what each term actually means in practice:

• LED driver (constant voltage): A switched-mode power supply that outputs a fixed DC voltage regardless of load, provided the total connected wattage stays within its rated capacity. This is the correct device for all LED strip and neon flex.
• LED transformer: An older term carried over from halogen lighting. In the LED industry, it refers to the same constant voltage driver. If a supplier lists a product as an "LED transformer," check that the output is DC and the voltage matches your strip.
• Constant current driver: Outputs a fixed current (measured in milliamps) rather than fixed voltage. Used for LED panels and downlights — not for LED strip. Do not use a constant current driver with LED strip as it will cause immediate damage.
• Power supply unit (PSU): A general engineering term for any device that provides electrical power. In LED strip context, this typically refers to the same constant voltage driver.

The ATOM LED range uses the industry-standard term "LED driver" across all product listings, technical specifications, and support documentation. Whether you search for LED transformers, LED power supplies, or LED drivers, the product you need is the same — a constant voltage switched-mode unit matched to your strip voltage and total wattage.

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How do you calculate the correct driver wattage for LED strip?

Multiply your strip wattage per metre by the total length in metres, then add 20% headroom. For example, 10 metres of 14.4W/m COB strip equals 144W total, multiplied by 1.2 gives 172.8W minimum — so you would select a 200W driver. Never run an LED driver at 100% of its rated output continuously, as this shortens its lifespan significantly and causes overheating in enclosed spaces.

The 20% headroom rule is not optional — it is the difference between a driver lasting 3 years and one lasting 10 years. Here is the calculation broken down:

1. Find the strip wattage per metre: This is printed on the strip packaging and listed on every ATOM LED product page. Common COB strip wattages in 2026 range from 8W/m to 24W/m.
2. Multiply by total length: Measure every run of strip in your installation. If you have three runs of 4 metres each, your total is 12 metres.
3. Calculate raw wattage: 12 metres x 14.4W/m = 172.8W.
4. Add 20% headroom: 172.8W x 1.2 = 207.4W minimum driver size.
5. Select the next standard size up: Standard driver sizes include 60W, 100W, 150W, 200W, 300W, and 600W. In this example, choose a 300W driver.

A common mistake is sizing the driver too close to the actual load. A 200W driver running at 190W continuous load generates significantly more heat than the same driver running at 150W. In a sealed ceiling void where ambient temperatures can reach 35-40 degrees in summer, that heat accelerates component degradation. Oversizing by 20-30% costs very little extra but adds years to the driver lifespan.

Total Strip Load	Minimum Driver Size (with 20% headroom)	Recommended Driver Size
Up to 50W	60W	60W or 100W
51–83W	100W	100W or 150W
84–125W	150W	150W or 200W
126–166W	200W	200W or 300W
167–250W	300W	300W
251–500W	600W	600W or split across two drivers

For larger installations, splitting the load across two or more drivers is often more practical than using a single large unit. Two 200W drivers are typically smaller, lighter, and easier to mount than one 400W driver, and they provide redundancy — if one fails, half the installation continues working while you source a replacement. Browse the full LED power supply range to compare sizes and dimensions.

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Which voltage do you need — 12V, 24V, or 48V?

The driver output voltage must match your LED strip voltage exactly — a 24V driver for 24V strip, a 48V driver for 48V strip. In 2026, 24V is the most common choice for residential installations under 10 metres, while 48V is preferred for longer runs and commercial projects because voltage drop occurs at half the rate of 24V at the same wattage over the same distance. 12V is used primarily for legacy compatibility with older strip types.

Voltage mismatch is not a gradual problem — it causes immediate damage. Connecting 24V strip to a 48V driver will burn out the LEDs instantly. Connecting 48V strip to a 24V driver will produce no light at all. Always verify the voltage printed on both the strip and the driver before wiring.

Specification	12V DC	24V DC	48V DC
Common use case	Short runs, legacy strip	Residential, most installations	Long runs, commercial
Maximum single-colour single feed	5 metres typically	20 metres (ATOM LED)	30 metres (ATOM LED)
Maximum dual-feed run	Not practical	Not commonly used	50 metres (ATOM LED)
Voltage drop rate (relative)	Highest — limits run length	Moderate	Half the rate of 24V
Driver availability	Widely available	Widest range of sizes	Growing range in 2026
Safety classification	SELV (under BS7671)	SELV (under BS7671)	Within SELV threshold under BS7671 (120V DC ripple-free max), provided isolated driver
Cable sizing advantage	Requires thicker cable for same power	Standard 1.0mm² to 10m	Carries same power on thinner cable

For most new UK installations in 2026, 24V remains the practical default. The driver range is the widest, compatibility with controllers and dimmers is universal, and the single-feed distance of 20 metres on ATOM LED strip covers the vast majority of residential projects. Step up to 48V when your longest run exceeds 10 metres and you need consistent brightness end to end, or when total project wattage makes cable sizing on 24V impractical. Browse our COB LED strip range to match strip to the correct driver voltage.

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When should you choose IP20 versus IP67 LED drivers?

Choose IP20 drivers for dry indoor locations — ceiling voids, cupboards, pelmets, and furniture cavities. Choose IP67 drivers for any location exposed to moisture, including outdoor installations, bathrooms, commercial kitchens, and covered but unheated spaces where condensation forms. The IP rating is about the driver enclosure protection, not the output quality — both types deliver identical electrical performance.

IP rating selection is driven entirely by the installation environment, not the strip being powered. An IP67 strip in an outdoor garden still needs an IP67 driver somewhere in the circuit. Here is when each rating applies:

• IP20 — dry indoor locations: Ceiling voids above plasterboard, inside kitchen cabinets, behind pelmets, under stair treads (indoors), inside furniture. The driver has ventilation slots or an open chassis that dissipates heat efficiently but offers no water protection.
• IP67 — wet or outdoor locations: Gardens, patios, decking areas, bathroom zones 1 and 2, unheated outbuildings, car ports, covered terraces, and any space where condensation, splashing, or direct rain contact is possible. The driver is fully sealed in a potted aluminium or plastic enclosure.

A point most suppliers fail to mention: IP67 drivers run warmer than IP20 equivalents because the sealed enclosure limits natural convection. In hot weather or south-facing installations, this means the thermal derating effect is more pronounced on IP67 units. Size your IP67 driver with 25-30% headroom rather than the standard 20% to account for this. For outdoor projects, explore the outdoor COB strip collection to match weatherproof strip with the correct IP67 driver.

Feature	IP20 LED Driver	IP67 LED Driver
Water protection	None — dry locations only	Temporary immersion to 1m
Dust protection	Partial	Complete — dust-tight
Typical mounting location	Ceiling void, cupboard, furniture	Outdoor, bathroom, unheated space
Heat dissipation	Efficient — open chassis with ventilation	Reduced — sealed enclosure limits convection
Recommended headroom	20% above total load	25–30% above total load
Physical size (typical 150W)	Smaller, lighter	Larger, heavier aluminium case
Mains connection	Terminal block or flying leads	Cable glands with sealed entry
Best for	Kitchen, bedroom, living room strip	Garden, bathroom, deck, covered terrace

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Do you need a dimmable or non-dimmable LED driver?

Use a non-dimmable constant voltage driver for all RGB, RGBW, and any strip connected through a controller — the controller handles dimming on the DC side. Use a TRIAC dimmable driver only for single-colour strip where you want to dim using a mains wall dimmer. Connecting a dimmable driver to RGB or RGBW strip through a controller causes flicker, colour shift, and premature failure of both the driver and the controller.

This is one of the most common specification errors in the UK LED industry. The logic feels backwards until you understand the signal chain:

• Non-dimmable driver + controller: The driver delivers full constant voltage to the controller. The controller then manages brightness and colour on the low-voltage DC side using PWM (pulse width modulation). This is the correct setup for RGB, RGBW, tuneable white, and any strip requiring colour or effect control.
• TRIAC dimmable driver + mains dimmer: The mains dimmer reduces the AC voltage going into the driver. The driver converts this reduced AC input to a proportionally lower DC output, dimming the strip. This works only for single-colour strip with no controller in the circuit. Use a trailing-edge dimmer — leading-edge dimmers frequently cause flicker. The trailing-edge fix costs approximately £15.
• Non-dimmable driver only (no dimmer, no controller): The strip runs at full brightness permanently — on/off via a standard light switch. Suitable for task lighting, commercial signage, and any application where dimming is not needed.

For detailed TRIAC dimmable driver specifications and compatible dimmer switches, browse the dedicated TRIAC dimmable driver collection. For controller options across all strip types, see the full controller range.

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How do you wire an LED driver to strip lights step by step?

Wiring an LED driver to strip lights follows a consistent sequence: isolate the mains supply, mount the driver in a ventilated accessible location, connect 230V AC mains input to the driver, wire the DC output to the strip using parallel runs, and test before closing up. All mains wiring must comply with BS7671 and be carried out by a competent person. Never power LED strip while it is still coiled on the reel — uncoil fully before switching on.

1. Isolate the mains supply: Switch off the relevant circuit at the consumer unit. Verify the circuit is dead using a voltage tester. Lock off the breaker if other people are on site. Never work on live circuits under any circumstances.
2. Mount the driver in an accessible, ventilated location: Maintain at least 20mm clearance on all sides for airflow. Ceiling voids, cupboards, and purpose-built enclosures are all suitable for IP20 drivers. IP67 drivers can mount in exposed outdoor locations but still benefit from shelter to simplify future maintenance access.
3. Connect 230V AC mains to the driver input terminals: Wire live (brown), neutral (blue), and earth (green/yellow) to the clearly marked input terminals. Use appropriately rated cable — typically 1.0mm² or 1.5mm² twin and earth. All mains connections must be enclosed and accessible.
4. Wire the DC output to LED strip using parallel runs: Run separate positive (+) and negative (-) cables from the driver DC output to each strip run independently. Use a junction box to split multiple runs. Parallel wiring is mandatory — series wiring multiplies voltage drop and produces uneven brightness across runs.
5. Check polarity before connecting strip: Match the positive and negative markings on the driver output to the corresponding markings on the strip connectors. Reversed polarity will not damage most modern LED strip but the strip will not illuminate.
6. Uncoil all strip and power on: Never power strip while coiled — heat accumulates rapidly in a coil and can damage the adhesive backing, reduce LED lifespan, or create a fire risk. Once fully uncoiled and mounted, switch on at the consumer unit.
7. Test and verify with a multimeter: Check voltage at the far end of each strip run. Voltage should read within 5% of the rated output. If voltage drop exceeds 5%, the run is too long for the voltage, the cable is undersized, or the strip needs feeding from both ends.

For COB strip installations, mount the strip on an aluminium profile for heat dissipation before wiring. Never mount LED strip directly on bare metal surfaces without insulation — direct contact with uninsulated metal can cause short circuits and strip failure.

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What causes LED driver buzzing, flickering, and premature failure?

The three most common LED driver problems — audible buzzing, visible flickering, and early failure — are almost always caused by the same root issues: overloading beyond rated capacity, incompatible dimmer switches (leading-edge instead of trailing-edge), and inadequate ventilation in sealed mounting spaces. A correctly sized driver from a quality manufacturer, properly ventilated and paired with the right dimmer, should operate silently for 40,000 to 60,000 hours.

Here is a breakdown of each problem and its fix:

• Audible buzzing: Caused by the internal transformer components vibrating at mains frequency. Most common when a driver is loaded above 85% of its rated output continuously. Fix: size the driver with 20–30% headroom above your total strip wattage. Buzzing also occurs with incompatible dimmer switches — switch to a trailing-edge model.
• Visible flickering: On dimmable systems, flickering is almost always a dimmer compatibility issue. Leading-edge dimmers are designed for resistive loads like halogen bulbs, not switched-mode LED drivers. Swap to a trailing-edge dimmer for approximately £15. On non-dimmable systems, flicker indicates the driver is failing or overloaded.
• Premature failure (under 3 years): Usually caused by sustained overheating. A driver mounted in a sealed, unventilated space without adequate derating runs its capacitors at high temperatures continuously. Electrolytic capacitor lifespan halves for every 10-degree rise above rated temperature. Provide ventilation or oversize the driver.
• Inrush current tripping MCBs: LED drivers draw a high current spike for a fraction of a second at power-on. On circuits with multiple drivers, this combined inrush can trip the MCB before the drivers reach steady state. Use a Type C MCB instead of Type B, or stagger driver power-up with a soft-start module.

The ATOM LED technical team troubleshoots driver issues on the phone daily. If you are experiencing buzzing, flickering, or early failure on an existing installation, call 01952 370028 (Monday to Friday, 9am–5pm) and the team can diagnose the problem and recommend the correct replacement driver or dimmer.

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How does thermal derating affect driver sizing in sealed spaces?

When an LED driver is mounted in a sealed, unventilated enclosure — such as a closed ceiling void, insulated pelmet, or weatherproof junction box — its safe continuous output drops by approximately 15–20% compared to its rated capacity in free air. A 200W driver in a sealed void should be treated as a 160W driver. Ignoring thermal derating is one of the leading causes of premature driver failure in UK residential installations.

This is a technical angle that virtually no UK LED supplier addresses in their product guides, yet it affects thousands of installations every year. The physics is simple:

• Driver efficiency is typically 85–92%: A 200W driver delivering 200W to the strip also generates approximately 16–30W of heat internally. In open air, this heat dissipates naturally. In a sealed space, it accumulates.
• Ambient temperature in sealed ceiling voids: In summer, sealed ceiling voids in UK properties routinely reach 35–45 degrees, particularly in south-facing rooms or top-floor flats. The driver is already starting at a higher baseline temperature before adding its own heat output.
• Capacitor degradation curve: The electrolytic capacitors inside LED drivers are the first components to fail. Their rated lifespan assumes a specific operating temperature — typically 85 or 105 degrees at the component. Every 10-degree increase above rated temperature approximately halves the expected lifespan.

The practical solution in 2026 is simple: when mounting in a sealed space, multiply your total strip wattage by 1.3 instead of 1.2 to account for both standard headroom and thermal derating. A 150W load in a sealed pelmet should be powered by a 200W driver rather than the 180W minimum that the standard calculation suggests. Where possible, provide at least one ventilation opening in the enclosure to allow convection airflow around the driver.

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What cable size should you use from driver to LED strip?

Use 1.0mm² cable for DC runs up to 10 metres at typical COB strip wattages on 24V. For runs exceeding 10 metres, total loads above 150W, or 12V systems, step up to 1.5mm² cable. Undersized cable creates resistance that produces voltage drop — the same visual effect as running the strip too far from the driver. On 48V systems, the same 1.0mm² cable carries the same power with half the current, making cable sizing less critical.

Cable sizing is the most overlooked part of LED strip installation. The driver output voltage might be perfect at the terminals, but by the time the current travels through 8 metres of undersized cable, the voltage at the strip can be noticeably lower. This creates dim, uneven lighting — and the usual response is to blame the driver or the strip when the cable is actually the problem.

• 24V systems, up to 10m run, typical COB wattage: 1.0mm² twin cable is sufficient. Voltage drop over 10m at 6A (approximately 144W at 24V) is within acceptable limits on 1.0mm² cable.
• 24V systems, 10–15m run or high-wattage strip: Step up to 1.5mm² cable. This reduces resistance and keeps voltage drop under the 5% threshold that produces visible brightness differences.
• 48V systems: At the same wattage, 48V carries half the current of 24V. A 144W load is only 3A at 48V versus 6A at 24V. This means 1.0mm² cable is adequate for significantly longer runs on 48V, which is one of the practical reasons professionals specify 48V for longer installations.
• 12V systems: At 12V, current is four times higher than 48V for the same wattage. Use 1.5mm² minimum and keep runs as short as possible. This high current draw is one reason 12V is increasingly limited to short legacy installations.

When in doubt about cable sizing for a specific installation, email operations@atomled.co.uk with your strip type, total wattage, and cable run distance. The ATOM LED technical team can calculate the exact voltage drop for your setup and recommend the correct cable specification.

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How long do LED drivers last and what affects their lifespan?

A quality constant voltage LED driver typically lasts 40,000 to 60,000 hours under normal operating conditions — approximately 8 to 12 years at 12 hours daily use. The three factors with the greatest impact on lifespan are thermal management (ventilation around the driver), loading percentage (running at 70% capacity versus 95%), and mains voltage stability. A well-sized, well-ventilated driver outlasts the LED strip it powers.

Driver lifespan is not fixed — it is a direct function of how the driver is treated. Two identical 200W drivers installed on the same day can have vastly different lifespans:

• Driver A — good practice: Mounted in a ventilated ceiling void with 30mm clearance, running at 65% load (130W on a 200W unit), on a clean mains supply. Expected lifespan: 50,000–60,000 hours.
• Driver B — poor practice: Sealed inside an insulated pelmet with no airflow, running at 92% load (184W on a 200W unit), on a circuit shared with inductive loads. Expected lifespan: 15,000–25,000 hours.

The difference is dramatic — Driver B may fail within 3–4 years while Driver A runs for a decade. The cost difference in sizing up one driver size is typically £10–£30. The cost of a callback to diagnose and replace a failed driver in a sealed ceiling void is significantly more. In 2026, the industry consensus among quality manufacturers is clear: oversize the driver, ventilate the mounting space, and the driver becomes the most reliable component in the entire LED strip installation.

ATOM LED drivers carry a 5-year warranty as standard. For installations where the driver is mounted in a sealed or difficult-to-access location, consider oversizing by 30% rather than 20% to maximise the service interval between replacements.

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Frequently asked questions about LED transformers and drivers

These are the questions our technical team receives most frequently about LED drivers, transformers, and power supplies. Every answer reflects real installation experience across thousands of UK projects. If your question is not covered here, call 01952 370028 or email operations@atomled.co.uk — the team handles driver sizing and troubleshooting queries every working day.

What is the difference between an LED driver and an LED transformer?

• Same device, different names: Both terms describe a switched-mode power supply that converts 230V AC mains to low-voltage DC output for LED strip.
• The term "transformer" is carried over from halogen lighting: Halogen used wire-wound transformers. LED uses switched-mode drivers. The function is similar but the technology is different.
• Always check the output is DC: If a product is labelled "LED transformer," confirm it outputs DC voltage at the rating your strip requires (12V, 24V, or 48V).

How do I calculate the right driver wattage for my LED strip?

• Strip wattage per metre multiplied by total length, plus 20% headroom: For example, 8m of 14.4W/m strip = 115.2W, multiplied by 1.2 = 138.2W minimum. Select a 150W driver.
• In sealed spaces, add 30% headroom instead of 20%: Thermal derating reduces safe continuous output in enclosed mounting locations.
• For multiple strip runs, add all runs together: Calculate the total wattage of every run connected to the same driver before adding headroom.

Can I use one driver for multiple LED strip runs?

• Yes, provided the total combined wattage plus headroom stays within the driver rating: Use a junction box to split the DC output into separate feeds for each run.
• Wire each run in parallel back to the driver: Never daisy-chain strip runs in series — this multiplies voltage drop across each connection.
• For loads above 300W, consider splitting across two drivers: Two smaller drivers are often easier to mount and provide redundancy.

What happens if my LED driver is too small for the total strip load?

• Continuous overloading causes overheating, buzzing, and early failure: The driver runs at or beyond its maximum capacity, stressing internal components.
• Visible symptoms include flickering and audible hum: The driver struggles to maintain constant voltage under excessive load.
• Typical failure timeframe: 6 to 18 months: An undersized driver may appear to work initially but degrades rapidly under sustained thermal stress.

Do I need a dimmable driver for my LED strip?

• Only for single-colour strip with a mains wall dimmer: Use a TRIAC dimmable driver paired with a trailing-edge dimmer switch.
• For RGB and RGBW strip, always use a non-dimmable driver: The controller manages brightness on the DC side. A dimmable driver causes flicker and colour shift.
• For single-colour strip without dimming, a non-dimmable driver is correct: On/off operation via a standard light switch.

What IP rating do I need for my LED driver?

• IP20 for dry indoor locations: Ceiling voids, cupboards, furniture cavities, pelmets, and similar enclosed dry spaces.
• IP67 for outdoor, bathroom, or any wet location: Gardens, decking areas, bathroom zones 1 and 2, unheated outbuildings, and covered terraces.
• IP65 is not sufficient for UK outdoor conditions: Surface-splash only, not rated for direct rain, standing water, or frost exposure.

Can I mix 12V, 24V, and 48V strip on the same driver?

• No — the driver output voltage must match the strip voltage exactly: 24V driver for 24V strip, 48V driver for 48V strip.
• Voltage mismatch causes immediate damage or no output: Higher voltage destroys the strip. Lower voltage produces no light.
• Use separate drivers for each voltage if your project mixes voltages: Each voltage requires its own independent driver and circuit.

How long do LED drivers typically last?

• 40,000 to 60,000 hours under normal conditions: Approximately 8 to 12 years at 12 hours of daily use.
• Lifespan depends primarily on heat and loading: A driver at 70% load in a ventilated space lasts significantly longer than one at 95% in a sealed enclosure.
• ATOM LED drivers carry a 5-year warranty: Covering manufacturing defects under normal operating conditions.

Is it safe to install an LED driver in a ceiling void?

• Yes — IP20 drivers are designed for exactly this type of location: Ensure the space is dry and the driver is not covered by insulation.
• Maintain minimum 20mm clearance around the driver: Allows natural convection for heat dissipation.
• The driver must remain accessible for maintenance: Install near an access hatch or removable ceiling panel.

What cable size should I use from driver to LED strip?

• 1.0mm² for runs up to 10 metres at typical wattages on 24V: Adequate for most residential COB strip installations.
• 1.5mm² for runs over 10 metres or loads above 150W: Reduces resistance and keeps voltage drop within 5% of rated output.
• On 48V systems, 1.0mm² cable extends to significantly longer runs: Half the current at the same wattage means less voltage drop over distance.

Why does my LED driver buzz or hum?

• Most common cause is overloading: The driver is running too close to its maximum rated output. Size up to the next driver wattage.
• On dimmable systems, leading-edge dimmers cause buzzing: Swap to a trailing-edge dimmer switch, which costs approximately £15 and eliminates the noise in most cases.
• Some buzzing is normal at certain dim levels: Very low dimming levels (under 10%) can cause minor hum on some driver and dimmer combinations.

Can I wire LED strip in series from one driver?

• No — always wire strip runs in parallel: Series wiring multiplies voltage drop across each connection, causing uneven brightness and the far end of the run to be noticeably dimmer.
• Parallel wiring keeps each run at the same voltage: Every strip run receives the full driver output voltage independently.
• Use a junction box to split the driver output: Run separate positive and negative cables from the junction box to each strip run.

Do LED drivers work with smart home systems?

• Standard non-dimmable drivers power the strip continuously: Smart control is added via a compatible LED controller between the driver and the strip.
• WiFi and Zigbee controllers integrate with Alexa, Google Home, and Apple HomeKit: The driver provides power while the smart controller manages colours, brightness, and scheduling.
• Browse the ATOM LED controller range for smart home options: Visit our Skydance controller range or MiBoxer controller range for WiFi-enabled models.

What is inrush current and why does it trip my circuit breaker?

• Inrush current is the high initial surge when an LED driver powers on: It lasts only a fraction of a second but can be 20–60 times the steady-state current.
• Multiple drivers on one circuit multiply the inrush: Five 200W drivers powering on simultaneously produce a combined surge that can trip a Type B MCB.
• Solution: use a Type C MCB or add a soft-start module: Type C MCBs tolerate higher inrush before tripping. A soft-start module staggers the power-up sequence across multiple drivers.

How do I know when to replace an LED driver?

• Visible flickering that was not present when the system was new: Indicates capacitor degradation inside the driver.
• Audible buzzing that has developed or worsened over time: Suggests internal component wear under sustained thermal stress.
• Strip running noticeably dimmer than original installation: The driver may no longer be maintaining full rated output voltage. Verify with a multimeter at the driver DC terminals.

Where can I get help choosing the right LED driver?

• Call 01952 370028, Monday to Friday, 9am to 5pm: The ATOM LED technical team sizes drivers for residential and commercial projects daily.
• Email operations@atomled.co.uk with your strip type, total length, and installation location: The team will recommend the exact driver model, wattage, IP rating, and any accessories needed.
• All LED drivers ship with free UK delivery from ATOM LED, Telford: UK stock — no dropshipping, no third-party fulfilment.

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Why choose ATOM LED for your LED driver project?

ATOM LED is a specialist UK LED lighting supplier based in Telford, Shropshire, stocking a complete range of constant voltage LED drivers from 10W to 600W across 12V, 24V, and 48V. Every driver is held in UK stock — not dropshipped — and ships with free UK delivery. The in-house technical team is available Monday to Friday, 9am to 5pm, to size drivers, troubleshoot installations, and recommend the correct specifications for your project.

• Complete driver range: IP20 and IP67 models from 10W to 600W covering every strip and neon flex installation from a single under-cabinet run to a full commercial fit-out.
• UK stock, free delivery: Every driver ships from the ATOM LED warehouse in Telford. No waiting for overseas shipments, no third-party fulfilment delays.
• 5-year warranty: Covering manufacturing defects on all constant voltage LED drivers under normal operating conditions.
• Technical support that understands real installations: The team handles driver sizing, dimmer compatibility, cable calculations, and fault diagnosis every working day. Call 01952 370028 or email operations@atomled.co.uk.
• Matched to ATOM LED strip: Every driver is tested and confirmed compatible with the full ATOM LED LED strip light range, including COB strip, neon flex, and outdoor IP67/IP68 products.
• Supporting child collections: Browse by voltage or type — all LED power supplies, LED neon flex, or COB strip accessories for connectors, cables, and mounting hardware.

Whether you are an electrician sizing a driver for a 20-metre kitchen pelmet in 2026, a designer specifying outdoor neon flex for a restaurant terrace, or a homeowner replacing a failed transformer under a bathroom cabinet — the ATOM LED range and technical team have you covered.

Call 01952 370028 · Email operations@atomled.co.uk · Browse the full LED transformers and drivers range

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Related Collections

• LED power supply units
• 24V LED drivers
• 48V LED drivers
• TRIAC dimmable LED drivers
• LED strip lights
• LED neon flex
• LED controllers
• 24V single colour COB strip
• 48V single colour COB strip
• strip connectors and wiring accessories
• LED strip wiring and driver sizing guide
• LED strip wiring and driver sizing guide

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