Ultra-Long SOB Strip Constant Current (#15904)
10mm · 24V · 280LEDs · 25mm/cut
Model: 15904
Overview
The DENO LED Model 15904 Ultra-Long SOB Strip C.C. is engineered for unparalleled extended lighting solutions, boasting a maximum continuous length of 10 meters from a single power feed. Featuring 280 LEDs/m and a 24V constant current design with IC regulation, it ensures consistent brightness and superior heat dissipation thanks to its thicker PCB. It's ideally suited for architectural linear lighting, coves, and display cases in commercial and hospitality settings, offeri...
Description
SOB long run LED strip — 24V DC, 280 LEDs/m under a continuous phosphor layer on a 10mm, 3 oz copper board, cuttable every 25mm, constant-current circuit. Buyer decision: dot-free SOB light plus CC regulation — 10 m (32.8 ft) on one feed, 20 m on two, with both brightness and the seamless line held uniform end to end. For long, exposed runs where no diffuser profile is planned. Custom CCT, IP and length — request a factory quote.
Specifications
| LED QTY | 280 LEDs/m |
|---|---|
| PART NO | DL-FSOBA140V24-15904-* |
| SMD TYPE | SOB |
| CUTTABLE UNIT | 7LEDs/25mm |
| DIMMABLE | Yes |
| LED PITCH | 3.572mm |
| PCB WIDTH | 10 |
| BEAM ANGLE | 160° |
| LENGTH MAX | 10M |
| COPPER FOIL | 3oz |
| ON OFF TIMES | 10000（test times） |
| POWER RANGE | 4.8~14.4W |
| CIRCUIT TYPE | C.C. (IC Regulated) |
| INPUT VOLTAGE | 24V |
| MIN BEND DIAMETER | Φ60mm |
| OPERATING TEMPERATURE | -25~40°C; Tc: 75°C (max) |
Applications
- Cove, wall-wash & perimeter lighting — Coves, recesses, wall-wash details and ceiling perimeters where a continuous, uniform line of light is required.
- Showroom & hospitality display lighting — Shelving, display cases, reception desks and signage backlighting in shops, showrooms and hospitality spaces.
- Kitchen & wardrobe under-cabinet lighting — Kitchen, wardrobe and furniture task lighting where the strip stays hidden and only the light is seen.
Request a quotation for #15904
DENO LED is a Shenzhen-based LED strip manufacturer with its own Foshan production base. Send the run length, voltage, CCT/CRI and IP rating you need and our engineering team replies with a specification sheet, wiring plan and price — OEM/ODM and fully custom builds included.
- Warranty: 5 years
- Compliance: CE · UL · RoHS
- Bonding wire: 99.99% pure gold
- Copper foil: 99.9% pure copper FPCB
Photometric Performance — CCT × CRI Efficacy Matrix
Peak measured luminous efficacy: 95.3 lm/W at 4000K, Ra 90, ErP energy class F (Grade DL (2nd Tier) · 9.6W/m).
All values are measured at the stated power density and ambient 25 °C, reported as luminous efficacy in lumens per watt (lm/W), luminous flux per metre (lm/m) and the corresponding EU ErP (2019/2015) energy class.
Grade DL (2nd Tier) · 9.6W/m
| CCT (K) | Ra 80 — Luminous Efficacy (lm/W) | Ra 80 — Luminous Flux (lm/m) | Ra 80 — ErP Energy Class | Ra 90 — Luminous Efficacy (lm/W) | Ra 90 — Luminous Flux (lm/m) | Ra 90 — ErP Energy Class | Full Spectrum (Ra 95+) — Luminous Efficacy (lm/W) | Full Spectrum (Ra 95+) — Luminous Flux (lm/m) | Full Spectrum (Ra 95+) — ErP Energy Class |
|---|---|---|---|---|---|---|---|---|---|
| 1800 K | — | — | — | 72.1 lm/W | 691.7 lm/m | G | — | — | — |
| 2300 K | — | — | — | 80.2 lm/W | 770.4 lm/m | G | — | — | — |
| 2700 K | — | — | — | 86.9 lm/W | 834.1 lm/m | F | — | — | — |
| 3000 K | — | — | — | 91.3 lm/W | 876.9 lm/m | F | — | — | — |
| 3500 K | — | — | — | 93 lm/W | 892.8 lm/m | F | — | — | — |
| 4000 K | — | — | — | 95.3 lm/W | 914.7 lm/m | F | — | — | — |
| 5000 K | — | — | — | 95.2 lm/W | 913.7 lm/m | F | — | — | — |
| 6500 K | — | — | — | 91.3 lm/W | 876.9 lm/m | F | — | — | — |
Grade DL (2nd Tier) · 12W/m
| CCT (K) | Ra 80 — Luminous Efficacy (lm/W) | Ra 80 — Luminous Flux (lm/m) | Ra 80 — ErP Energy Class | Ra 90 — Luminous Efficacy (lm/W) | Ra 90 — Luminous Flux (lm/m) | Ra 90 — ErP Energy Class | Full Spectrum (Ra 95+) — Luminous Efficacy (lm/W) | Full Spectrum (Ra 95+) — Luminous Flux (lm/m) | Full Spectrum (Ra 95+) — ErP Energy Class |
|---|---|---|---|---|---|---|---|---|---|
| 1800 K | — | — | — | 70.9 lm/W | 850.2 lm/m | G | — | — | — |
| 2300 K | — | — | — | 78.9 lm/W | 946.9 lm/m | G | — | — | — |
| 2700 K | — | — | — | 85.4 lm/W | 1025.1 lm/m | F | — | — | — |
| 3000 K | — | — | — | 89.8 lm/W | 1077.7 lm/m | F | — | — | — |
| 3500 K | — | — | — | 91.4 lm/W | 1097.3 lm/m | F | — | — | — |
| 4000 K | — | — | — | 93.7 lm/W | 1124.2 lm/m | F | — | — | — |
| 5000 K | — | — | — | 93.6 lm/W | 1123 lm/m | F | — | — | — |
| 6500 K | — | — | — | 89.8 lm/W | 1077.7 lm/m | F | — | — | — |
Grade DL (2nd Tier) · 14.4W/m
| CCT (K) | Ra 80 — Luminous Efficacy (lm/W) | Ra 80 — Luminous Flux (lm/m) | Ra 80 — ErP Energy Class | Ra 90 — Luminous Efficacy (lm/W) | Ra 90 — Luminous Flux (lm/m) | Ra 90 — ErP Energy Class | Full Spectrum (Ra 95+) — Luminous Efficacy (lm/W) | Full Spectrum (Ra 95+) — Luminous Flux (lm/m) | Full Spectrum (Ra 95+) — ErP Energy Class |
|---|---|---|---|---|---|---|---|---|---|
| 1800 K | — | — | — | 69.7 lm/W | 1003.2 lm/m | G | — | — | — |
| 2300 K | — | — | — | 77.6 lm/W | 1117.2 lm/m | G | — | — | — |
| 2700 K | — | — | — | 84 lm/W | 1209.6 lm/m | G | — | — | — |
| 3000 K | — | — | — | 88.3 lm/W | 1271.7 lm/m | F | — | — | — |
| 3500 K | — | — | — | 89.9 lm/W | 1294.8 lm/m | F | — | — | — |
| 4000 K | — | — | — | 92.1 lm/W | 1326.5 lm/m | F | — | — | — |
| 5000 K | — | — | — | 92 lm/W | 1325.1 lm/m | F | — | — | — |
| 6500 K | — | — | — | 88.3 lm/W | 1271.7 lm/m | F | — | — | — |
Related models in this series
See every model in SOB LED Strip Series or narrow to Sob Ultra Long. Compare wattage, lumen output and run length in the ProCalc parameter library, or request OEM/ODM pricing on the custom manufacturing page.
Frequently Asked Questions
What is the maximum continuous run length for this SOB LED strip?
This ultra-long LED strip features a special design allowing for a maximum continuous run of 10 meters with power fed from only one side, simplifying installation.
What are the key benefits of the SOB technology in this strip?
SOB (System-on-Board) technology ensures high bending reliability and a wider 180° beam angle, coupled with excellent flexibility and strong bending resistance for diverse applications.
Is this LED strip suitable for dimming, and what voltage does it require?
Yes, this LED strip is dimmable. It operates on a 24V input voltage with constant current (IC regulated) for stable performance.
Can this specific LED strip model be customized for higher power outputs?
Yes, while featuring built-in chip protection stents for higher power, special power requirements beyond the standard range are customizable upon request to DENO LED.
Is this SOB strip light also called FOB, S-COB or COB Pro strip light?
Yes. Model 15904 belongs to the DENO SOB (Spot on Board) family, which the market also calls FOB strip light, S-COB strip light or COB Pro strip light. All three names describe the same dot-free chip-on-board LED strip construction, so you can quote it under whichever term your project specification uses.
Why choose this S-COB strip light over a standard COB LED strip?
Compared with conventional COB LED strip, DENO SOB / FOB strip light supports higher power up to 24W/m instead of roughly 12W/m, CRI 95 and full-spectrum options, SDCM <=3 colour consistency, and single-end power feed at 5m, 10m and 15m without visible head-to-tail brightness loss, with higher luminous efficacy and lumen output.
Long Run COB LED Strip (SOB) — Buyer Questions
How long can a long run COB LED strip go on one power feed?
The constant-current SOB long-run boards hold rated output for 15 m from a single end and 30 m when fed from both ends; the 36V and 48V versions go further again. Ordinary 24V constant-voltage COB tape is limited to about 5 m before the tail visibly dims.
- Series Long Run SOB strips
- Guide run the voltage drop numbers
- Related series long LED strip lights across all series
- Product 14512 long-run constant-current board
Does a constant current LED strip really have no brightness drop head to tail?
Each short segment carries its own current regulator, so it draws the current it needs regardless of the volt drop reaching it. Measured head to tail on a 15 m single-feed run the difference is a few percent — invisible on a cove line, unlike the 20–30% fall on unregulated tape.
- Series Long Run SOB strips
- Related series how constant current regulation works
- Guide COB vs SOB on long runs
Can I order 20m or 30m LED strip runs with no voltage drop?
Yes. 20 m and 30 m continuous installations are built either as a both-ends feed on 24V or as a single feed on 36V/48V. DENO supplies the reel cut to the exact run length so a corridor or façade line has no mid-run joint at all.
- Series Long Run SOB strips
- Related series 48V boards for 30m runs
- Related series 36V boards for 20m runs
Why is a single-end powered LED strip 24V preferred on site?
One feed means one driver location, one cable pull and one point of maintenance. On refurbishment work where the ceiling is already closed at the far end, a single-end powered 15 m run is often the only practical option — and it removes the second driver from the cost plan.
Is an ultra long dot-free LED strip suitable for cove and architectural projects?
That is exactly what it is built for. Long continuous coves, atrium perimeters and façade lines need both an unbroken luminous line and stable brightness end to end; a dot-free constant-current board delivers both, and roll-to-roll production means no solder joints to fail inside a sealed cove.
- Series Long Run SOB strips
- Guide roll-to-roll unibody construction
- Related series profiles for long cove runs
SOB is the upgraded generation of the COB LED strip
Every SOB board on this page starts from the classic COB recipe — one continuous phosphor line, zero visible dots — and rebuilds it on flip-chip dies and thick copper. The result keeps the COB look but runs to 24W/m, holds CRI 95 and stays within SDCM ≤3 over the full reel. If your project is comfortable at 4–12W/m, the classic COB range remains the economical choice; if you need double the output or a 15 m single-feed run, you are already on the right page.