- Voltage
- 24V
- IP Rating
- IP20 Non-
- Cut
- 8.33mm
- Max Run
- 15m
- Warranty
- 7 Year
Natural White 4000K COB LED Strip 24V 10mm 480LEDs/m IP20 8.33mm Cut Points 15m Run
SKU: COB24V15M-40K-IP20
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IP20 Indoor
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Dotless COB
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15m Run
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CRI 90
Encrypted & secure checkout
Description
COB stands for Chip on Board. Hundreds of closely packed LED chips sit beneath one continuous phosphor layer, creating a smooth, dotless line of light instead of visible individual points.

The same installed under-cabinet scene shown at 2700K, 3000K, 4000K, 5000K and 6500K.
Natural White 4000K gives a balanced neutral white that keeps surfaces and colours clear without looking blue.
24V DC · 480 chips/m · 9W/m · Ra>90 · 10mm wide · IP20 indoor · 8.33mm cut points · 15m maximum run · 150mm cable · brown 3M 300LSE backing · 7-year guarantee
How far will one power supply take it?
This strip is designed for continuous runs up to 15 metres. Use a 24V constant-voltage driver and size it with at least 25% headroom: strip length × 9W, then round up to the next suitable driver.
- 5 metres: 45W load — use at least a 60W driver.
- 10 metres: 90W load — use at least a 120W driver.
- 15 metres: 135W load — use a 200W driver.
Where does it cut?
Cut only on the marked copper pads, spaced every 8.33mm. The 150mm lead is pre-fitted. Never power the strip while it is wound on the reel because trapped heat can damage the LEDs and adhesive. See the dimension and cut-point diagrams in the product gallery.
Where should it be installed?
IP20 means dry indoor use only. Install the strip in a compatible aluminium profile for heat management, mechanical protection and a cleaner finish. Do not twist the PCB or bend it sharply across the solder pads. For bathrooms, outdoor areas or wet locations, choose a suitably rated waterproof strip.
Is 4000K right for the project?
Best suited to worktops, retail displays, offices, utility rooms and precise task lighting. For a softer domestic atmosphere, choose Warm White 3000K.
Made to Measure
Select the whole-metre price band that covers the required length, then enter the exact cut length in the Made to Measure switchboard. For example, 2.2m is charged at the 3 Metre price while keeping the selected colour temperature unchanged. Values above 15m are routed to the project enquiry path.
Need specification help? Call the ATOM LED technical team on 01952 370028 or email operations@atomled.co.uk.
Explore the COB LED strip range, 24V drivers and aluminium profiles.
- Product Type
- COB LED Strip
- Colour
- Natural White 4000K
- IP Rating
- IP20 Non-Waterproof
- Voltage
- 24V
- Watts Per Metre
- 9 W/m
- LEDs Per Metre
- 480
- Max Run Length
- 15m
- CRI
- >90
- Dimensions
- 10mm
- Warranty
- 7 Years
Specifications
- Product Type
- COB LED Strip
- Colour
- Natural White 4000K
- IP Rating
- IP20 Non-Waterproof
- LEDs Per Metre
- 480
- Continuous Run
- 15m
- Voltage
- 24V
- Watts Per Metre
- 9 W/m
- Metres
- 15m Roll
- Dimensions
- 10mm
- Width
- 10mm
- Bending Angle
- Vertical Bend
- Cut Points
- 8.33mm
- LED Type
- COB
- Attachment
- Brown 3M 300LSE
- CRI
- >90
- Warranty
- Up to 7 years
- Brand
- ATOM LED
Delivery & Returns
On 97% of products — Royal Mail 48-hour tracked
Mainland UK orders over £90 — order by 1pm, Mon–Fri
30-day returns window — free returns on faulty products
01952 370028 · Mon–Fri 9am–5pm
Shipping
Free UK delivery on 97% of products is sent via Royal Mail 48-hour tracked.
Free next day delivery on Mainland UK orders over £90 (order by 1pm, Mon–Fri).
Orders placed before 1pm UK dispatch the same working day from Telford. Friday 1pm is the cut-off for Monday delivery, excluding paid Saturday Delivery and bank holidays.
Saturday Delivery is available as a paid option at checkout.
Large orders and pallet shipments: call 01952 370028 for a quote.
For more information see our detailed Shipping Page.
International Shipping
Northern Ireland shipping is charged at manual rates depending on shipment weight. International shipping uses manual zone rates at checkout.
Returns & Refunds
The 30-day return window applies to non-customised stock items returned in their original, unopened, uncut condition with original packaging. Eligible items include:
- Standard LED strip lights supplied as 5-metre rolls
- Straight aluminium profiles
- Power supplies and drivers
- Accessories (connectors, controllers, dimmers, end caps)
Custom-cut and bespoke orders (made-to-measure strip, custom-spec drivers, custom-length profiles, special-order items) are non-returnable unless faulty.
Faulty products qualify for free returns — we cover the return postage and either replace the item or refund the full cost including original delivery.
Refunds are processed within 5–10 working days of receiving the returned item.
For more details see our Returns & Refunds page.
Reviews
Frequently Asked Questions
What is the difference between IP65, IP67, and IP68?
IP65 handles surface splashes only and is not suitable for UK outdoor conditions or bathroom wet zones under BS7671. IP67 is rated for temporary immersion and covers outdoor garden installations, most bathroom zones, and exposed architectural features. IP68 handles continuous submersion for ponds, fountains, and fully exposed outdoor applications. For most UK garden and decking projects, IP67 is the correct choice.
Can I cut this product to a custom length?
Yes. ATOM LED products can be cut at the marked cut points without voiding the warranty. Many competitors restrict cuts to 50–100mm intervals, which wastes offcuts on tight custom runs. Use sharp scissors or a craft knife for a clean cut, then seal the end with a suitable end cap.
What size driver do I need?
Multiply the total metres by the wattage per metre, then add 20% headroom. For example: 10 metres of 24V neon flex at 9W/m = 90W total, so you need a minimum 108W driver. Never load a driver above 80% capacity for long-term reliability.
Should I choose 12V, 24V, or 48V?
Choose 12V for caravans, cars, boats, and any project powered by a 12V battery. Choose 24V for most home and trade installs where you need dependable run length with lower voltage drop. Choose 48V for longer architectural runs where extra distance and single-feed flexibility matter. For underwater or submerged installs, use IP68 Waterproof lights and the correct driver for that product; do not use 48V underwater.
What is your warranty?
ATOM LED offers product-specific warranties: up to 7 years on single-colour COB strip, 5 years on RGB and RGBW COB strip, and 4 years on LED neon flex. The warranty covers manufacturing defects. Call 01952 370028 for warranty claims.
Do you offer free delivery?
Yes. Free UK delivery on 97% of products via Royal Mail 48-hour tracked. Free next day delivery on Mainland UK orders over £90 (order by 1pm, Mon–Fri).
Made To Measure
Contact us
Tell us the run length you need and we’ll confirm the best setup for your project.
- Product
- Natural White 4000K COB LED Strip 24V 10mm 480LEDs/m IP20 8.33mm Cut Points 15m Run
- SKU
- COB24V15M-40K-IP20