SOB Ultra-Narrow LED Strip Light (#13921)
5mm · 24V · 350LEDs · 20cut
Model: 13921
Overview
The DENO LED model 13921 is a premium 5mm SOB Ultra-Narrow LED Strip, designed for sophisticated B2B lighting applications requiring ultimate discretion and performance. Operating at 24V, this strip offers a high density of 350LEDs/m, ensuring a dot-free, uniform light emission with a wide 180° beam angle. Its flexible design and ultra-narrow 5mm PCB width make it ideal for integration into tight spaces, architectural accents, and display lighting. Certified with LM-80 appr...
Description
Designed for slim architectural lighting installations, this ultra-narrow 5mm PCB SOB LED strip light fits effortlessly into tight linear profiles and discrete millwork. Featuring 350 LEDs per meter and a wide 160-degree beam angle, the constant-voltage strip delivers seamless, dot-free linear illumination without harsh glare. Built on a durable 2oz copper PCB, this 24V circuit offers precise cut increments every 20mm for flexible wholesale project supply requirements. The dimmable SOB strip operates efficiently across 6W to 15W power configurations, utilizing LM-80 approved components to ensure dependable commercial performance.
Specifications
| LED QTY | 350LEDs/m |
|---|---|
| PART NO | DL-FSOBA175V24-13921-* |
| SMD TYPE | SOB |
| CUTTABLE UNIT | 7LEDs/20mm |
| DIMMABLE | Yes |
| IP RATING | IP20 |
| LED PITCH | 2.857mm |
| PCB WIDTH | 5mm |
| BEAM ANGLE | 160° |
| RUN LENGTH | 5m |
| COPPER FOIL | 2oz |
| ON OFF TIMES | 10000（test times） |
| POWER RANGE | 6~15W |
| CIRCUIT TYPE | C.V. (Resistor Based) |
| 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.
- Ultra-narrow 5mm channels & shadow gaps — Fits shadow-gap details, slim profiles and joinery grooves that cannot take a standard 8–10mm strip.
Recommended accessories & compatible parts
- DL-0809HX-F — 8.89x7.79mm Mini Recessed LED Channel with Flange — Trimless Aluminum Profile for 5mm Strip: Accepts LED strips up to 5mm wide.
- DL-0909HX-M — 9x9mm Magnetic LED Channel — Tool-Free Aluminum Profile for Shelf Lighting: Accepts LED strips up to 5mm wide.
- DL-1010HX-V — 10x10mm V Shape Corner LED Channel — 45 Degree Aluminum Profile for Cabinets: Accepts LED strips up to 5mm wide.
- DN-PSU-100 — 24V 100W Class-2 LED Driver · High Efficiency: Matches the 24V DC input of this strip; size the driver with at least 20% headroom over total load.
- DN-PSU-150 — 24V 150W Class-2 LED Driver · Premium: Matches the 24V DC input of this strip; size the driver with at least 20% headroom over total load.
- DN-PSU-60 — 24V 60W Class-2 LED Driver · Constant Voltage: Matches the 24V DC input of this strip; size the driver with at least 20% headroom over total load.
- V1 — 5-36VDC 1-Channel * 8A RF+Push Dimming Controller | V1: Matched by input voltage range and colour channels.
Request a quotation for #13921
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
- Lead time: standard boards: samples from 1 working day · custom: 3–5 working days · new FPCB: 1–3 weeks · production 1–2 weeks after sample approval
- 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: 106.1 lm/W at 4000K, Ra 90, ErP energy class F (Grade DL (2nd Tier) · 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) · 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 | — | — | — | 80.2 lm/W | 481.1 lm/m | G | — | — | — |
| 2300 K | — | — | — | 89.3 lm/W | 535.8 lm/m | F | — | — | — |
| 2700 K | — | — | — | 96.6 lm/W | 579.7 lm/m | F | 78.4 lm/W | 470.3 lm/m | G |
| 3000 K | — | — | — | 101.7 lm/W | 610.2 lm/m | F | 82.7 lm/W | 496.3 lm/m | G |
| 3500 K | — | — | — | 103.5 lm/W | 621.1 lm/m | F | 85.2 lm/W | 511 lm/m | F |
| 4000 K | — | — | — | 106.1 lm/W | 636.3 lm/m | F | 87.5 lm/W | 525 lm/m | F |
| 5000 K | — | — | — | 105.9 lm/W | 635.7 lm/m | F | — | — | — |
| 6500 K | — | — | — | 101.7 lm/W | 610.2 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 | — | — | — | 76.9 lm/W | 922.4 lm/m | G | — | — | — |
| 2300 K | — | — | — | 85.6 lm/W | 1027.4 lm/m | F | — | — | — |
| 2700 K | — | — | — | 92.6 lm/W | 1111.6 lm/m | F | 75.1 lm/W | 901.7 lm/m | G |
| 3000 K | — | — | — | 97.5 lm/W | 1170.1 lm/m | F | 79.3 lm/W | 951.7 lm/m | G |
| 3500 K | — | — | — | 99.2 lm/W | 1190.9 lm/m | F | 81.6 lm/W | 979.8 lm/m | G |
| 4000 K | — | — | — | 101.7 lm/W | 1220.1 lm/m | F | 83.9 lm/W | 1006.6 lm/m | G |
| 5000 K | — | — | — | 101.6 lm/W | 1218.9 lm/m | F | — | — | — |
| 6500 K | — | — | — | 97.5 lm/W | 1170.1 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 | — | — | — | 75.6 lm/W | 1088.4 lm/m | G | — | — | — |
| 2300 K | — | — | — | 84.2 lm/W | 1212.2 lm/m | G | — | — | — |
| 2700 K | — | — | — | 91.1 lm/W | 1311.6 lm/m | F | 73.9 lm/W | 1063.9 lm/m | G |
| 3000 K | — | — | — | 95.9 lm/W | 1380.7 lm/m | F | 78 lm/W | 1123 lm/m | G |
| 3500 K | — | — | — | 97.6 lm/W | 1405.1 lm/m | F | 80.3 lm/W | 1156.1 lm/m | G |
| 4000 K | — | — | — | 100 lm/W | 1439.7 lm/m | F | 82.5 lm/W | 1187.7 lm/m | G |
| 5000 K | — | — | — | 99.9 lm/W | 1438.3 lm/m | F | — | — | — |
| 6500 K | — | — | — | 95.9 lm/W | 1380.7 lm/m | F | — | — | — |
Related models in this series
- SOB High Density LED Strip Light (#16662)
- Ultra Narrow SOB LED Strip Light (#16416)
- Single-Color SOB LED Strip Light (#13922)
- SOB Flexible Linear Light (#16614)
- Green light Flexible LED Strip Light (#8215-G)
- Ice Blue Flexible LED Strip Light (#8215-IB)
- High Efficiency SOB LED Strip Light (#16791)
- Single-Color SOB LED Strip Light (#11236)
See every model in SOB LED Strip Series or narrow to Sob Classic. 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 are the key advantages of the SOB technology in this LED strip?
SOB (System-on-Board) technology offers a dot-free appearance, high LED density, and enhanced flexibility for seamless integration into various designs. It provides uniform illumination without hot spots.
Is this 5mm LED strip dimmable and what power supply is required?
Yes, the 13921 5mm SOB LED strip is fully dimmable. It requires a Constant Voltage (CV), 24V DC power supply, compatible with most standard LED dimming systems.
What certifications does this LED strip hold for B2B applications?
This LED strip has LM-80 approval, ensuring its long-term reliability and color consistency, which is crucial for professional B2B installations and projects.
Can this ultra-narrow LED strip be customized for specific project lengths?
Yes, the strip is cuttable every 7 LEDs (20mm), allowing for precise length customization to fit specific project requirements. Contact DENO for custom length inquiries.
Is this SOB strip light also called FOB, S-COB or COB Pro strip light?
Yes. Model 13921 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.
Engineering & selection guide
Bending limits, IP selection, voltage drop, cutting and the full buyer Q&A for this family are kept on the series page.
- Classic SOB dot-free strips — Classic COB LED Strip Light (SOB) — Buyer Questions
- LED strip engineering selection handbook
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 with individually encapsulated, gold-wire-bonded packages soldered on thick copper of up to 105 µm or thicker. The result keeps the COB look while DENO has verified builds up to 24W/m at 24V DC (25 °C ambient, aluminum profile), with a standard binning target of SDCM ≤3; CRI, run length and cut unit are model-specific. For shorter, lower-load or cost-sensitive lines the classic COB range remains a practical choice — compare exact models under equal conditions.