Under Shelf COB LED Strip | 480 LEDs/m 7.5W 50mm Cut 20m 24V IP20

For long run under shelf lighting, this COB strip carries 20 metres from a single 24V feed — the longest one-feed run in our shelf range. One driver, one cable, one socket for an entire wall of open shelving.

Five colour temperatures are stocked: 2700K and 3000K warm white, 4000K natural white, 5000K daylight and 6500K cool white. The board runs 480 LEDs per metre at 7.5 W/m, measures 10mm wide, and is rated IP20 — indoor dry areas only. That density gives a dot-free line along the shelf underside rather than a row of visible pinpoints.

When is the 20 metre run the right choice?

Choose the 20 metre version when your shelving runs longer than one 5 metre reel covers. Long alcove shelving, library bays, retail display shelves and full-height shelving units all suit it, because a single 24V driver and one cable feed the whole line instead of three separate spurs.

• Open shelving walls: five shelves using 4 metres draw 30W, so a 45W driver clears the 20% margin.
• Bookshelves and alcoves: six alcove shelves on one circuit means five fewer driver positions in the plasterboard.
• Display shelving: long retail runs stay colour-matched, since every metre comes off one reel.

Why does 7.5 W/m run further than the 9 W/m version?

Lower current per metre. At 7.5 W/m a 20 metre run pulls 150W in total, where the 9 W/m board would pull 180W over the same distance, and that extra current drops more voltage along the copper. Cutting the load per metre is what extends the usable single-feed length.

Wire long runs in parallel from the driver, not in series, and size a constant-voltage 24V driver around 20% above total load. Never power the strip while it is coiled on the reel — trapped heat destroys the adhesive. Mounting on bare metal without insulation risks a short circuit.

What does the 50mm cut interval mean when sizing shelves?

You can only cut every 50mm, so each piece lands on the nearest 50mm below your measurement. A 780mm floating shelf takes a 750mm length, leaving a 30mm gap at one end that disappears once the strip sits inside an aluminium profile with a diffuser.

Measure the shelf underside, round down to the nearest 50mm, then total your lengths. Our Telford team checks run length and driver sizing on 2026 orders. Pair the strip with aluminium profiles and diffusers and a matched 24V constant-voltage driver. It suits kitchen open shelving too.

Call 01952 370008 or email sales@houseofleds.co.uk for run-length advice. Free UK delivery across the under shelf strip collection.

Mainland UK delivery

• Tracked delivery, including 1m profiles: £6.85 for eligible orders under £90.
• Free tracked delivery: eligible standard parcels and 1m-profile orders of £90 or more.
• DPD Next Working Day: £9.85
• Next Working Day by 12pm: £15.95
• Next Working Day by 10:30am: £18.95
• Saturday delivery: £19.85
• 2m profiles / long goods: £21.85 per consignment. This applies whenever an order contains any 2m profile: one 2m length, a 2m length mixed with 1m items, or multiple 2m lengths. The charge remains £21.85 and is not replaced by the free-delivery threshold.

Orders placed before 1pm Monday to Friday are normally despatched the same working day when stock is available and no additional cutting or preparation time is required. Timed services exclude weekends and Bank Holidays unless Saturday delivery is selected. International orders use a tracked service; the available rate is calculated at checkout.

Returns

Unused standard stock items may be returned within 15 days in their original, undamaged condition and packaging. Contact us before sending a return so the correct return route can be confirmed.

Made-to-measure, cut, mixed or otherwise personalised products cannot be cancelled or returned once preparation has started unless they are faulty. Full unused rolls and unused accessories, power supplies, controllers, drivers and profiles may be eligible for return. Modifying a product can invalidate its warranty, including removing the fitted plug from 220V/240V strip or neon flex.

Read the full shipping policy and refund policy, or contact sales@houseofleds.co.uk before ordering a made-to-measure item.