LED Neon Flex

Every LED neon flex light in this collection uses a UV-stable silicone extrusion — not the cheaper PVC tubing that yellows within 18 months outdoors. Colour temperatures span 2700K warm white to 6500K cool white, with RGB and RGBW options for colour-changing installations. All products ship from our Telford warehouse with free UK delivery, backed by a 4-year warranty and technical support on 01952 370028.

UV-stable silicone body · 24V & 48V DC · IP65 to IP68 rated · Dot-free output · CRI 90+ · 30,000–50,000hr lifespan · cut to length at marked intervals · 4-year warranty · Free UK delivery

On this page:

1. What is LED neon flex and how does it differ from glass neon?
2. Which LED neon flex type do you need — silicone body, mini, or standard?
3. What IP rating should you choose for your neon flex project?
4. Which voltage is best for LED neon flex — 24V or 48V?
5. What colour temperatures and RGB options are available?
6. How does silicone neon flex compare to PVC neon flex?
7. What bend radius can LED neon flex achieve?
8. How do you install LED neon flex step by step?
9. How do you calculate the correct driver size for neon flex?
10. Can you dim LED neon flex lights?
11. Where is LED neon flex used — applications and project ideas?
12. What common mistakes should you avoid with neon flex?
13. Frequently asked questions about LED neon flex
14. Why choose ATOM LED for neon flex lights in the UK?

Quick decision summary: For indoor feature walls, ceiling coves, and signage — standard neon flex in IP20 or IP65 at 24V is the most cost-effective starting point. For UK outdoor gardens, facades, and decking — specify IP67 minimum. For ponds, fountains, or any installation where the neon flex sits in standing water — IP68 is required. For runs over 10 metres, choose 48V to reduce voltage drop. For tight curves and small lettering, choose mini LED neon flex with a tighter bend radius.

Who this is for: interior designers specifying continuous accent lighting, electricians fitting low-voltage flexible lighting, sign makers building custom neon signs, landscape designers planning outdoor garden and facade lighting, and commercial fit-out teams working on bars, restaurants, and retail displays in 2026.

Who this is NOT for: anyone needing a flat, adhesive-backed tape light for under-cabinet or under-shelf use — that is a COB LED strip light, not neon flex. If you need a rigid, recessed channel for a strip — see our LED strip mounting profiles.

Common buying mistakes to avoid:

• Choosing IP65 for outdoor UK use: IP65 is splash-rated only and is not suitable for permanent outdoor exposure to UK rain, frost, and standing water — specify IP67 as the minimum outdoor rating.
• Using a dimmable driver with RGB or RGBW neon flex: RGB and RGBW neon flex require a non-dimmable constant voltage driver paired with a dedicated RGB controller — a dimmable driver causes flicker and colour shift.
• Running long lengths on 24V without checking voltage drop: At lengths beyond 10 metres, 24V neon flex experiences noticeable brightness drop at the far end — switch to 48V or use parallel wiring to maintain even output.
• Bending tighter than the stated minimum radius: Forcing neon flex past its rated bend radius fractures LED chips inside the silicone, creating permanent dark spots and hotspots that cannot be repaired.

---

What is LED neon flex and how does it differ from glass neon?

LED neon flex is a flexible silicone or PVC extrusion containing LEDs that produces a continuous, even line of light mimicking the appearance of traditional glass neon tubing. Unlike glass neon, it runs on safe low-voltage DC (typically 24V or 48V), can be cut to length on site, bends without risk of shattering, and consumes approximately 70–80% less energy than the gas-filled glass tubes it replaces.

Traditional glass neon has been used commercially since the early 1900s, but it comes with significant practical limitations that make it poorly suited to most 2026 installations. Glass tubes require specialist bending by a trained neon artisan, run on high-voltage transformers (typically 3,000V–15,000V), shatter on impact, and contain mercury in certain colour variants. Maintenance costs are high because a single tube failure requires complete replacement by a specialist — you cannot patch or splice glass neon on site.

LED neon flex solves every one of these problems. The flexible silicone body bends by hand to follow curves, arches, and lettering. It runs on DC voltages that fall within low-voltage safety thresholds. It can be cut at marked intervals using standard scissors or a sharp blade. And when a section fails, you cut out the damaged segment and reconnect with weatherproof connectors — a 15-minute repair, not a week-long specialist call-out.

• Energy consumption: LED neon flex typically draws 8–15W per metre, compared to 60–100W per metre for glass neon — an energy reduction of approximately 80% on a like-for-like installation.
• Lifespan: Quality LED neon flex lasts 30,000–50,000 hours, while glass neon tubes typically reach 8,000–15,000 hours before gas depletion causes dimming.
• Voltage: LED neon flex operates on 24V or 48V DC, compared to the 3,000V–15,000V required by glass neon transformers.
• Weight: A 5-metre length of LED neon flex weighs approximately 200–400g depending on profile size, compared to 2–4kg for the equivalent glass neon tube and mounting hardware.
• Installation time: A typical 10-metre LED neon flex installation takes 1–2 hours for an experienced fitter, versus a full day or more for custom glass neon bending, mounting, and wiring.

---

Which LED neon flex type do you need — silicone body, mini, or standard?

The ATOM LED neon flex range includes three main types: full-body silicone neon flex for maximum weatherproofing and UV resistance, mini neon flex for tight curves and fine detail work, and standard PVC-bodied neon flex for cost-effective indoor use. Choosing the right type depends on your application, required bend radius, and whether the installation faces outdoor exposure.

Each type serves a distinct purpose. Picking the wrong one leads to either overspending on unnecessary IP protection or, worse, installing indoor-rated product outside where it degrades within months. Here is what separates them in 2026.

Feature	Silicone body neon flex	Mini neon flex	Standard neon flex
Body material	UV-stable silicone	Silicone or PVC (varies by model)	PVC extrusion
Typical profile size	12x20mm, 14x26mm, 15x25mm	6x12mm, 8x16mm	10x20mm, 12x20mm
Minimum bend radius	50–80mm (depending on profile)	20–40mm	40–60mm
UV resistance	Excellent — 10+ years without yellowing	Good to excellent (material dependent)	Limited — yellowing visible from 12–18 months outdoors
Best for	Outdoor, wet areas, commercial facades	Signage, lettering, tight curves, decking	Indoor coves, feature walls, budget installations
IP rating range	IP67 – IP68	IP20 – IP67	IP20 – IP65

For outdoor projects in 2026, we recommend the full-body silicone neon flex range — the silicone extrusion handles UV exposure, temperature cycling between -25°C and +50°C, and direct rain without degrading. For signage and custom lettering where the neon flex must follow tight curves and small letterforms, the mini neon flex collection provides bend radii as tight as 20mm.

• Silicone body: The professional-grade choice for any project exposed to weather, UV, or temperature extremes — the silicone will not yellow, crack, or become brittle over the typical 5–10 year outdoor lifespan.
• Mini neon flex: Purpose-built for applications where standard neon flex is too bulky — neon signs, small lettering, tight radius curves in display cabinets, and slim decking channels.
• Standard PVC: Suitable for dry indoor environments where UV exposure is minimal and the tightest budget matters more than long-term outdoor durability.

---

What IP rating should you choose for your LED neon flex project?

For indoor-only installations, IP20 or IP65 is sufficient. For any outdoor installation in the UK — including gardens, facades, and decking — IP67 is the minimum safe specification. For ponds, fountains, water features, or any application where neon flex sits below the waterline, IP68 is required. IP65 is not suitable for permanent outdoor use in UK weather conditions.

IP ratings are often misunderstood, and the consequences of choosing the wrong one are serious. An IP65-rated neon flex installed permanently outdoors in the UK will allow moisture ingress during prolonged autumn and winter rain, leading to corrosion, LED failure, and potential short circuits within 6–12 months. This is not a theoretical risk — it is the single most common failure mode we see returned to our Telford workshop.

IP rating	Protection level	Suitable applications	Not suitable for
IP20	No moisture protection	Dry indoor: coves, display shelves, wardrobes	Any area with humidity, splashing, or outdoor exposure
IP65	Surface splash only	Indoor kitchens, covered indoor areas, dry sheltered positions	Outdoor UK installations, bathrooms (wet zones under BS7671)
IP67	Temporary immersion (30 min at 1m depth)	Outdoor gardens, decking, facades, bathroom zones 1 and 2	Permanent submersion, pressurised water jets
IP68	Continuous submersion (depth rated by manufacturer)	Ponds, fountains, water features, fully exposed ground-level	High-pressure wash-down environments

Our IP67 neon flex collection covers the vast majority of UK outdoor residential and commercial projects. For specialist applications involving standing water or full submersion, the IP68 neon flex range is rated for continuous underwater use.

• IP65 outdoor myth: Many suppliers sell IP65 neon flex as "outdoor rated" without clarifying the limitations — IP65 resists surface splashing from a single direction only and is not tested for sustained rain, pooling water, or the freeze-thaw cycles typical of a UK winter.
• Bathroom zones: Under BS7671 wiring regulations, IP67 minimum is required for Zone 1 and Zone 2 in UK bathrooms — IP65 does not meet the standard for these areas.
• Connector weak points: Even IP67 neon flex is only as Waterproof as its connections — always use IP67-rated end caps and junction connectors, and seal every joint with self-amalgamating tape for outdoor installations.

---

Which voltage is best for LED neon flex — 24V or 48V?

For runs under 10 metres, 24V neon flex is cost-effective and widely compatible with existing drivers and controllers. For runs over 10 metres — especially single-feed outdoor installations — 48V is the better choice because voltage drop occurs at half the rate of 24V at the same wattage over the same distance. ATOM LED stocks both voltages across the full neon flex range for 2026.

Voltage drop is the primary technical reason to choose one voltage over another. As current travels along the copper conductors inside the neon flex, resistance converts a portion of that energy into heat, reducing the voltage available to LEDs at the far end. The result is visible: the end of a long run appears noticeably dimmer than the start. On a 15-metre run of 24V neon flex drawing 10W/m, you can expect approximately 8–12% brightness reduction at the far end in a single-feed configuration. The same run on 48V would show approximately 4–6% — a difference clearly visible to the eye.

• 24V advantages: Lower driver cost, broader controller compatibility, simpler wiring for short residential runs, and wider product availability across the market.
• 48V advantages: Half the voltage drop over distance, supports single-feed runs up to 30 metres on ATOM LED neon flex, reduces cable thickness required for the same wattage, and allows 50-metre dual-feed installations.
• Safety note: 48V DC falls within the SELV voltage threshold under BS7671 (120V DC ripple-free maximum), provided it is supplied from a suitably isolated, safety-rated driver — SELV classification requires correct installation, not just the voltage itself.
• Mixed voltage warning: Never connect 24V neon flex to a 48V driver or vice versa — overvoltage destroys LEDs immediately, and undervoltage causes severe flickering and uneven output.

Specification	24V LED neon flex	48V LED neon flex
Maximum single-feed run	Up to 20 metres	Up to 30 metres
Maximum dual-feed run	Up to 30 metres	Up to 50 metres
Voltage drop over 15m at 10W/m	Approximately 8–12%	Approximately 4–6%
Driver availability	Widest range, lowest cost	Fewer options, slightly higher cost
Controller compatibility	Broadest — most RGB/RGBW controllers are 24V	Growing — check controller voltage rating
Best suited for	Runs under 10m, residential, signage	Runs over 10m, commercial, facades, long perimeters

For most residential indoor projects — feature walls, ceiling coves, under-counter lighting — 24V neon flex is the practical choice. For commercial facades, long perimeter runs, and outdoor installations where total cable length exceeds 10 metres, 48V delivers a more even light output and reduces the need for mid-run power injection. Browse our full range of compatible LED drivers and transformers to match your project requirements.

---

What colour temperatures and RGB options are available in LED neon flex?

ATOM LED neon flex is available in warm white (2700K–3000K), natural white (3500K–4000K), cool white (5000K–6500K), and full RGB and RGBW colour-changing options. All single-colour neon flex offers CRI 90+ for accurate colour rendering. RGBW includes a dedicated white channel for clean white output that standard RGB cannot achieve.

Colour temperature selection affects the feel of the entire space. Warm white at 2700K suits residential living areas, bedrooms, and hospitality environments where a relaxed atmosphere is the goal. Natural white at 4000K works well in retail displays, kitchens, and workspaces where accurate colour perception matters. Cool white at 5000K–6500K is primarily used in commercial and industrial settings, car washes, and clinical environments.

• Warm white (2700K–3000K): The most popular choice for residential projects in 2026 — creates the same warm amber glow as incandescent lighting without the energy cost.
• Natural white (3500K–4000K): Balanced daylight-equivalent output popular in retail, galleries, and modern kitchen designs where colour accuracy is important.
• Cool white (5000K–6500K): Clean, bright output suited to commercial signage, display lighting, and environments where maximum visibility is the priority.
• RGB: Full colour mixing via a dedicated RGB controller — produces millions of colour combinations but cannot produce a clean, warm white tone. The white output from RGB mixing has a noticeable violet-blue tinge.
• RGBW: Adds a dedicated white LED channel alongside RGB, solving the colour-mixing white problem and delivering both pure colour effects and clean white light from a single neon flex product.

For colour-changing installations, remember that RGB and RGBW neon flex must be paired with a non-dimmable constant voltage driver and a dedicated RGB or RGBW controller. Using a standard dimmable driver with RGB neon flex causes flicker, colour shift, and premature failure of both the driver and the neon flex.

---

How does silicone neon flex compare to PVC neon flex for long-term performance?

Silicone neon flex outperforms PVC in every measurable category for outdoor and long-term installations. Silicone resists UV degradation for 10+ years without yellowing, handles temperature ranges of -40°C to +200°C (compared to -20°C to +80°C for PVC), and maintains flexibility throughout its lifespan. PVC stiffens in cold weather and yellows under UV exposure, typically showing visible degradation within 12–18 months of outdoor installation.

The cost difference between silicone and PVC neon flex is approximately 30–50% at the point of purchase. That premium pays for itself within the first 2–3 years on any outdoor installation, because PVC replacement costs — including labour, access equipment, and disposal — far exceed the initial saving. For indoor use in dry, UV-free environments, PVC remains a reasonable budget option.

The real-world performance difference becomes obvious during a UK winter. PVC extrusions stiffen noticeably below 5°C, making them difficult to handle during winter installations and creating stress points where the rigid PVC meets mounting clips. Silicone remains flexible down to -40°C, which means it continues to absorb minor movements from thermal expansion in the mounting surface without cracking or pulling free from fixings.

• UV resistance: High-specification silicone is inherently UV-stable and does not require additional UV coatings — PVC relies on surface treatments that wear away over 12–24 months of sun exposure.
• Flame retardancy: Silicone is naturally flame retardant and self-extinguishing — an important consideration for commercial installations where fire regulations apply.
• Chemical resistance: Silicone resists cleaning chemicals, salt spray, chlorine (pool environments), and most solvents — PVC degrades when exposed to many common cleaning agents.
• Colour stability: Precision-engineered silicone extrusions maintain their original colour and light transmission properties throughout the 2026-rated lifespan, while PVC gradually yellows and reduces light output by 15–25% over 3–5 years outdoors.

For the full range of UV-stable silicone neon flex options, browse the silicone body neon flex collection.

---

What bend radius can LED neon flex achieve and why does it matter?

LED neon flex bend radius varies by profile size: standard profiles (12x20mm) typically achieve a minimum 50–80mm radius, while mini profiles (6x12mm) bend to 20–40mm. Bending tighter than the rated minimum fractures the internal LED circuit board, creating permanent dark spots and hotspots that cannot be repaired without cutting out the damaged section entirely.

Bend radius is one of the most overlooked specifications when specifying neon flex, and getting it wrong is one of the most common installation failures we see at our Telford workshop. The LEDs inside neon flex sit on a flexible printed circuit board (FPCB). This board can flex, but it has a physical limit. Exceed that limit and the copper traces crack, breaking the electrical connection to downstream LEDs and creating localised overheating in the surviving sections.

For neon sign making, the bend radius determines the smallest letter size you can produce. A 50mm minimum radius means the tightest interior curve of any letter must be at least 100mm in diameter — too large for small text or script fonts. That is why our neon sign making collection features mini neon flex profiles with 20–30mm bend radii, allowing letters as small as approximately 80mm tall in print fonts and approximately 120mm in script fonts.

• Standard profile (12x20mm or larger): Minimum bend radius typically 50–80mm — suitable for architectural curves, ceiling coves, wall contours, and large-format signage.
• Mini profile (6x12mm or 8x16mm): Minimum bend radius 20–40mm — required for small lettering, tight decorative curves, and slim-channel decking installations.
• Top-bend vs side-bend: Most neon flex bends in one plane only — check whether the product bends top-to-bottom or side-to-side, as this determines mounting orientation for your specific project.
• Compound curves: Standard LED neon flex cannot form compound curves (bending in two planes simultaneously) — for 3D shapes, use short straight sections joined with flexible connectors at each direction change.

---

How do you install LED neon flex step by step?

Installing LED neon flex involves measuring and planning the layout, mounting the fixing clips or channel, cutting the neon flex to length at marked cut points, making electrical connections with appropriate connectors, wiring to a correctly sized DC driver, and testing the full circuit before final fixing. A typical 10-metre installation takes approximately 1–2 hours for an experienced fitter using the correct tools and materials.

Before starting, ensure you have all components to hand. Running neon flex while it is still coiled on the reel generates heat that has nowhere to dissipate inside the silicone body — this damages the adhesive bond between the LED FPCB and the silicone extrusion and creates a fire risk. Always uncoil fully before powering on, even for testing.

1. Step 1 — Plan and measure the run: Map the exact route on the mounting surface, noting every curve, corner, and direction change. Measure total length including any returns or loops. Add 100–150mm to each end for connection clearance. Record the total wattage (length in metres multiplied by watts per metre) to size the driver correctly.
2. Step 2 — Mount fixing clips or channels: Install the neon flex mounting clips or neon flex mounting profiles along the planned route at 200–300mm intervals. For outdoor installations, use stainless steel or UV-resistant nylon clips — standard zinc-plated clips corrode within 6–12 months in exposed UK conditions.
3. Step 3 — Cut neon flex to length: Cut only at the marked cut points printed on the neon flex body. Use sharp scissors or a clean blade — never a hacksaw or serrated tool, which frays the silicone and exposes the internal circuit. Seal the cut end immediately with the supplied end cap to prevent moisture ingress.
4. Step 4 — Make electrical connections: Strip the silicone from the connection end to expose the solder pads. Use the provided pin connectors or solder directly for a permanent joint. For outdoor installations, apply self-amalgamating tape and heat-shrink tubing over every connection to maintain the IP rating.
5. Step 5 — Wire to the driver: Connect the neon flex to a constant voltage DC driver matched to the neon flex voltage (24V or 48V) and rated at a minimum 20% above the total wattage of the neon flex circuit. Use parallel wiring for multiple runs from a single driver — never wire neon flex runs in series, as this multiplies voltage drop across the full length.
6. Step 6 — Test the complete circuit: Power on the driver and check the full length for even brightness, consistent colour temperature, and any dark spots. Use a multimeter to verify voltage at the far end of the longest run — if voltage drop exceeds 10%, add a second feed point or switch to 48V. Check all outdoor connections for water-tightness before final fixing.
7. Step 7 — Clip into position and secure: Press the neon flex into the mounting clips or channel, working from one end to the other without stretching or compressing. Ensure the neon flex is not twisted — a 90° twist over a short distance causes uneven light output and stresses the internal FPCB. Secure any loose cable runs with appropriate cable clips rated for DC low-voltage wiring.

For outdoor installations, position the driver in a ventilated, weatherproof enclosure rated to at least IP65. The driver itself generates heat during operation, so allow airflow around all sides and avoid fully sealed enclosures without ventilation. For full driver sizing guidance, see our LED power supply range.

---

How do you calculate the correct driver size for LED neon flex?

Multiply the total length of neon flex in metres by the wattage per metre to get total circuit wattage, then add a 20% minimum headroom margin. For example, 12 metres of 10W/m neon flex draws 120W — so specify a driver rated at 144W or above. Never run a driver at full rated capacity, as this shortens driver lifespan and increases heat output, particularly in enclosed or outdoor installations.

Driver sizing errors account for a large proportion of premature LED failures. An undersized driver runs at maximum capacity continuously, generating excess heat that degrades internal components and typically fails within 12–18 months. An oversized driver — within reason — is always the safer choice. A 150W driver running a 120W load operates at 80% capacity, runs cooler, and typically outlasts its LED load.

• Single-colour calculation: Total metres x W/m x 1.2 = minimum driver wattage. Example: 15m x 12W/m = 180W x 1.2 = 216W minimum driver.
• RGB/RGBW calculation: Use the same formula, but ensure the driver is non-dimmable constant voltage. Dimming is handled entirely by the RGB or RGBW controller, not the driver.
• Multiple runs from one driver: Add the wattage of all runs together, then apply the 20% headroom. Wire runs in parallel from the driver output — never in series.
• Outdoor driver rating: For outdoor installations, specify a driver with IP67 rating minimum. Our 24V LED drivers and 48V LED drivers include IP67-rated models suitable for outdoor enclosures.

---

Can you dim LED neon flex lights?

Single-colour LED neon flex dims smoothly using a trailing-edge dimmer paired with a TRIAC dimmable driver, or using a PWM dimmer connected between a standard constant voltage driver and the neon flex. RGB and RGBW neon flex is dimmed exclusively through the dedicated controller — never use a dimmable driver with RGB or RGBW products, as this causes flicker, colour shift, and premature component failure.

The dimming method depends entirely on the neon flex type and the level of control required. For most residential single-colour installations, a wall-mounted trailing-edge dimmer connected to a TRIAC dimmable driver provides familiar rotary or push-button dimming that integrates with existing wall plates. For smart home systems and commercial installations, PWM dimmers or wireless controllers offer app-based and programmable dimming.

• Trailing-edge dimmer: Compatible with most TRIAC dimmable LED drivers — costs approximately £15 for a quality UK-market trailing-edge dimmer. Leading-edge dimmers frequently cause visible flicker with LED drivers and should be avoided.
• PWM dimming: Connects between the driver output and the neon flex input — dims by rapidly switching the DC output on and off at frequencies above visible perception, producing smooth dimming to approximately 1% without colour shift.
• RGB/RGBW dimming: Handled entirely by the colour controller, which manages both colour mixing and brightness. Pair with a non-dimmable constant voltage driver only.
• Dimming range: Quality LED neon flex dims smoothly from 100% to approximately 5–10% without flicker. Below 5%, some products may show slight flicker depending on driver and dimmer compatibility.

---

Where is LED neon flex used — applications and project ideas for 2026?

LED neon flex suits any application requiring a continuous, dot-free line of light that can follow curves and contours. Common 2026 installations include outdoor garden borders, building facades, decking perimeters, bathroom feature walls, commercial bar and restaurant lighting, retail display signage, and custom neon-style signs. The flexible silicone body and IP-rated construction make it suitable for both indoor and outdoor use across residential and commercial projects.

The versatility of LED neon flex comes from two properties that rigid lighting cannot match: flexibility and seamless light output. Where recessed downlights create pools of light with dark gaps, and where exposed strip lighting shows individual LED dots, neon flex produces a clean, continuous ribbon of light that draws the eye along a defined path.

Residential applications

• Ceiling coves and perimeter lighting: Neon flex mounted in a ceiling cove creates an even wash of indirect light across the ceiling — popular in living rooms, bedrooms, and home cinemas for ambient mood lighting in 2026 builds.
• Bathroom feature lighting: IP67 neon flex installed around mirrors, bath surrounds, and shower niches provides a diffused glow without the visible LED dots that spoil the effect — specify IP67 minimum for bathroom installations under BS7671.
• Garden borders and paths: Outdoor LED neon flex in IP67 or IP68 marks garden paths, borders, and raised beds with continuous light that survives UK frost, rain, and sustained outdoor exposure.
• Decking perimeters and steps: LED neon flex decking lights sit between board gaps or along step risers, providing safety lighting and visual definition to outdoor entertaining areas.

Commercial applications

• Bar and restaurant lighting: RGB and RGBW neon flex creates dynamic colour-changing effects behind bars, along ceiling perimeters, and around feature walls — controllable via app or DMX for scene-setting during different service periods.
• Retail window displays: Neon flex outlines product displays, draws attention to key promotions, and creates brand-colour lighting that runs continuously without the maintenance costs of traditional neon signage.
• Architectural facade lighting: Commercial-grade premium silicone neon flex in IP67 or IP68 follows building contours, highlights architectural details, and provides consistent branding lighting for storefronts, hotels, and leisure venues.
• Custom signage: The LED neon sign making range is used by professional sign makers across the UK for bespoke lettering, logos, and decorative signs in retail, hospitality, and residential settings.

---

What common mistakes should you avoid when buying and installing neon flex?

The most costly mistakes with LED neon flex are choosing IP65 for outdoor use, using dimmable drivers with RGB products, exceeding the minimum bend radius, powering neon flex while still coiled, and mounting directly onto bare metal surfaces without insulation. Each of these errors leads to premature failure, wasted product, and rework costs that exceed the price of doing it correctly the first time.

• IP65 for outdoor use: IP65 is splash-resistant only and is not rated for sustained exposure to UK rain, frost, or standing water. IP67 is the minimum for any permanent outdoor installation — this is the single most common specification error in the neon flex category in 2026.
• Dimmable drivers with RGB/RGBW: RGB and RGBW neon flex requires a non-dimmable constant voltage driver paired with a dedicated colour controller. A dimmable driver causes flicker, unstable colour mixing, and shortened lifespan for both driver and neon flex.
• Exceeding bend radius: Every neon flex product has a stated minimum bend radius — bending tighter fractures the internal FPCB, creating permanent dark spots. Always check the datasheet before bending, and use connectors or short straight sections at sharp corners instead of forcing a tight curve.
• Powering while coiled: Neon flex must never be powered while still on the reel or coiled. The sealed silicone body traps heat, which builds rapidly in a coiled configuration and can damage the adhesive layer, degrade LED output, and create a fire risk.
• Mounting on bare metal: Mounting neon flex directly onto unpainted or uninsulated metal surfaces risks short circuits if the silicone body is nicked or damaged during installation. Always use mounting clips that provide insulation between the neon flex and the metal surface, or apply an insulating layer to the mounting surface first.
• Undersized drivers: Running a driver at or above its rated wattage causes overheating and premature failure — always add 20% headroom above the calculated load.
• Series wiring: Wiring multiple neon flex runs in series multiplies voltage drop across the total length. Always wire in parallel from the driver output so each run receives full voltage independently.

---

Frequently asked questions about LED neon flex

These are the questions our technical team at ATOM LED answers most frequently by phone (01952 370028) and email (operations@atomled.co.uk). If your question is not covered here, contact us Monday to Friday, 9am–5pm — we are LED neon flex specialists based in Telford, Shropshire, not a call centre reading from a script.

1. Can LED neon flex be cut to length?

• Yes. All ATOM LED neon flex features cut to length at marked intervals — cut at any marked cut point using sharp scissors or a clean blade without voiding the warranty. Cut points are printed at regular intervals along the neon flex body, typically every 25–50mm depending on the product.

2. Is LED neon flex Waterproof?

• It depends on the IP rating. IP20 has no water protection. IP65 handles light splashing only. IP67 withstands temporary immersion and is suitable for outdoor UK conditions. IP68 is rated for continuous submersion. Always match the IP rating to the installation environment.

3. How long does LED neon flex last?

• Quality LED neon flex has a rated lifespan of 30,000–50,000 hours. At 8 hours per day, that equates to approximately 10–17 years of use. Lifespan depends on correct driver sizing, adequate heat management, and installation within the stated operating temperature range.

4. Can I use LED neon flex outdoors in the UK?

• Yes, provided you specify IP67 minimum. IP65 is not suitable for permanent outdoor exposure in UK weather. For gardens, facades, and decking, IP67 handles rain, frost, and temperature cycling from -25°C to +50°C. For ponds and water features, specify IP68.

5. What driver do I need for LED neon flex?

• A constant voltage DC driver matched to the neon flex voltage (24V or 48V). Calculate total wattage (metres x W/m) and add 20% headroom. For single-colour dimming, use a TRIAC dimmable driver. For RGB/RGBW, use a non-dimmable driver paired with a dedicated controller.

6. Can LED neon flex replace glass neon signs?

• Yes, in most applications. LED neon flex replicates the visual effect of glass neon at approximately 70–80% lower energy cost, without the high voltages, mercury, fragility, or specialist installation requirements. Custom lettering uses mini neon flex with a 20–30mm bend radius.

7. Does LED neon flex get hot?

• LED neon flex generates significantly less heat than glass neon or halogen alternatives. Surface temperatures typically remain below 45°C in normal operation. However, neon flex must never be powered while coiled — the enclosed silicone body traps heat in coiled configurations, which can cause damage.

8. What is the difference between neon flex and COB strip?

• Neon flex is a self-contained, fully enclosed flexible light in a silicone or PVC body. COB strip is a flat, adhesive-backed flexible circuit board that requires a separate diffuser or channel for a dot-free appearance. Neon flex is ready to install without additional mounting hardware — COB strip needs a profile for the same diffused effect.

9. Can I connect multiple lengths of neon flex together?

• Yes. Use the manufacturer-specified connectors or solder joints. For outdoor installations, seal every connection with self-amalgamating tape and heat-shrink to maintain waterproofing. Maximum total length per feed depends on voltage — up to 20m single-feed at 24V and 30m single-feed at 48V on ATOM LED products.

10. Is LED neon flex safe to touch?

• Yes, during normal operation. LED neon flex runs on low-voltage DC (24V or 48V) and operates at surface temperatures below 45°C in most installations. The silicone body provides an additional insulation layer. As with any electrical product, switch off before handling connections or making cuts.

11. What is the minimum bend radius for neon sign lettering?

• Mini neon flex achieves bend radii as tight as 20–30mm, allowing letter heights down to approximately 80mm for print-style fonts. Standard neon flex with a 50–80mm bend radius suits large lettering and broad curves only. Always check the product datasheet before designing signage layouts.

12. Can LED neon flex be used in bathrooms?

• Yes, with the correct IP rating. Under BS7671, IP67 minimum is required for Zone 1 and Zone 2 in UK bathrooms. IP65 does not meet the standard for bathroom wet zones. All neon flex must be powered by a low-voltage DC driver located outside the bathroom zones.

13. Does ATOM LED neon flex come with a warranty?

• Yes — all ATOM LED neon flex carries a 4-year warranty. This covers manufacturing defects, LED failure under normal use, and premature colour degradation. Warranty is valid provided the product is installed within the stated operating parameters (correct voltage, driver sizing, IP-appropriate environment).

14. How is LED neon flex delivered?

• All ATOM LED neon flex ships with free UK delivery from our Telford, Shropshire warehouse. Products are UK stock — not dropshipped from overseas. Standard delivery takes 1–3 working days. For trade orders or time-critical projects, contact us on 01952 370028 to discuss expedited options.

15. Can I use LED neon flex in a pond or fountain?

• Only IP68-rated neon flex is suitable for submersion. IP67 handles temporary immersion but is not rated for continuous underwater use. For ponds, fountains, and water features, specify IP68 and ensure all connections are made with IP68-rated connectors and sealants.

16. What colour options are available beyond white?

• ATOM LED neon flex is available in RGB (full colour mixing) and RGBW (colour mixing plus dedicated white). RGB neon flex produces millions of colours via a controller but cannot produce a clean white — the mixed white has a cold violet tinge. RGBW solves this with a separate white channel for pure, warm white output alongside full colour capability.

---

Why choose ATOM LED for neon flex lights in the UK?

ATOM LED is a UK LED specialist based in Telford, Shropshire, stocking one of the widest neon flex ranges in the UK market. Every product ships from our own warehouse with free UK delivery — no dropshipping, no third-party fulfilment. Our technical team is available Monday to Friday, 9am–5pm on 01952 370028 or operations@atomled.co.uk for project advice, specification support, and after-sales service.

• UK stock, UK dispatch: Every neon flex product in this 2026 range is held in our Telford warehouse, ready for next-day dispatch. No overseas lead times, no customs delays, no minimum order quantities for standard products.
• 4-year warranty: All ATOM LED neon flex is backed by a 4-year warranty covering manufacturing defects and LED failure under normal operating conditions — one of the longest warranties in the UK neon flex market.
• Technical support from installers: Our team has hands-on experience installing the products we sell. When you call 01952 370028, you speak to someone who has physically fitted neon flex on real projects — not a general customer service agent reading from a product sheet.
• Cut technology: Cut ATOM LED neon flex at any marked point without voiding the warranty. This means zero waste on site and precise length matching to your project measurements.
• Full ecosystem: Drivers, controllers, connectors, mounting profiles, and accessories — all available from a single supplier, all tested for compatibility, all shipped together with free UK delivery.
• CRI 90+ across single-colour range: Every white neon flex product delivers CRI 90 or above for accurate colour rendering — critical for retail displays, hospitality environments, and residential applications where colour quality matters.

Ready to start your neon flex project? Browse the full LED neon flex range below, or contact us for specification advice:

• Phone: 01952 370028 (Monday–Friday, 9am–5pm)
• Email: operations@atomled.co.uk
• Browse outdoor neon flex: Outdoor LED neon flex lights
• Browse IP67 range: IP67 neon flex collection
• Browse IP68 range: IP68 submersible neon flex
• Browse silicone body range: Silicone body neon flex

---

---

Related Collections

• outdoor LED neon flex lights
• IP67-rated neon flex
• IP68 neon flex for submersible use
• mini LED neon flex
• silicone body neon flex
• LED neon for sign making
• neon flex decking lights
• single colour neon flex in 12V and 24V
• RGB colour-changing neon flex
• addressable pixel RGB neon flex
• vertical bend and top bend neon flex
• neon flex mounting profiles and channels
• compatible LED drivers
• RGB and digital pixel controllers
• LED lighting installation 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