2216 Ultra-Narrow LED Strip Light (#13921-N)
Model: 13921-N

Overview
2216 Ultra-Narrow LED Strip Light | 5mm | 24V | 20mm/cut | 350LEDs | #13921-N is part of the DENO Ultra-Narrow SMD Strips series, engineered around ultra narrow LED strip. Key specifications: 2216, 350LEDs, DC24V, 5mm PCB, 2oz copper FPCB, cuttable 7LEDs/20mm. Every reel is produced on DENO's roll-to-roll line with 99.9% pure copper FPCB and ships CE, UL and RoHS compliant for architectural, retail and hospitality projects. OEM and ODM configurations of length, colour temperature and waterproofing are available on request.
Description
#13921-N | 2216 Ultra-Narrow LED Strip Light Narrow PCB desgin with highly bending relibility. Higher power available. Special power is customizable. Super high density, provide uniform light distribution. High lumen output reach ~1900lm/m. Wide CCT range for option from 1800K~7500K. Customizable full spectrum, 120° view angel high color efficiency. High CRI95, Full specturm is also available. Versatile lighting solution ideal for backlighting, general lighting in aluminum frames, under cabinets,and various architectural applications. Popular among professionals for its adaptability and performance.
Ultra Narrow Led Strip built for ultra-narrow smd strips projects.
Specifications
| LED QTY | 350LEDs |
|---|---|
| PART NO | DL-F22A175V24-13921-N-* |
| SMD TYPE | 2216 |
| CUTTABLE UNIT | 7LEDs/20mm |
| DIMMABLE | Yes |
| LED PITCH | 2.857mm |
| PCB WIDTH | 5mm |
| LENGTH MAX | 5m |
| COPPER FOIL | 2oz |
| POWER RANGE | 6~15W |
| CIRCUIT TYPE | C.V. |
| INPUT VOLTAGE | DC24V |
Photometric Performance — CCT × CRI Efficacy Matrix
Peak measured luminous efficacy: 133.9 lm/W at 4000K, Ra 90, ErP energy class E (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 | — | — | — | 101.3 lm/W | 607.5 lm/m | F | — | — | — |
| 2300 K | — | — | — | 112.9 lm/W | 677.2 lm/m | E | — | — | — |
| 2700 K | — | — | — | 122 lm/W | 732.2 lm/m | E | 98.9 lm/W | 593.5 lm/m | F |
| 3000 K | — | — | — | 128.4 lm/W | 770.6 lm/m | E | 104.5 lm/W | 626.7 lm/m | F |
| 3500 K | — | — | — | 130.8 lm/W | 784.7 lm/m | E | 107.7 lm/W | 645.9 lm/m | F |
| 4000 K | — | — | — | 133.9 lm/W | 803.2 lm/m | E | 110.5 lm/W | 663.2 lm/m | E |
| 5000 K | — | — | — | 133.9 lm/W | 803.2 lm/m | E | — | — | — |
| 6500 K | — | — | — | 128.4 lm/W | 770.6 lm/m | E | — | — | — |
Grade DL (2nd Tier) · 10W/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 | — | — | — | 98.5 lm/W | 984.5 lm/m | F | — | — | — |
| 2300 K | — | — | — | 109.7 lm/W | 1097.5 lm/m | F | — | — | — |
| 2700 K | — | — | — | 118.7 lm/W | 1186.6 lm/m | E | 96.2 lm/W | 961.7 lm/m | F |
| 3000 K | — | — | — | 124.9 lm/W | 1248.8 lm/m | E | 101.6 lm/W | 1015.6 lm/m | F |
| 3500 K | — | — | — | 127.2 lm/W | 1271.6 lm/m | E | 104.7 lm/W | 1046.7 lm/m | F |
| 4000 K | — | — | — | 130.2 lm/W | 1301.6 lm/m | E | 107.5 lm/W | 1074.7 lm/m | F |
| 5000 K | — | — | — | 130.2 lm/W | 1301.6 lm/m | E | — | — | — |
| 6500 K | — | — | — | 124.9 lm/W | 1248.8 lm/m | E | — | — | — |
Grade DL (2nd Tier) · 15W/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 | — | — | — | 95.1 lm/W | 1425.8 lm/m | F | — | — | — |
| 2300 K | — | — | — | 106 lm/W | 1589.4 lm/m | F | — | — | — |
| 2700 K | — | — | — | 114.6 lm/W | 1718.5 lm/m | E | 92.9 lm/W | 1392.8 lm/m | F |
| 3000 K | — | — | — | 120.6 lm/W | 1808.5 lm/m | E | 98.1 lm/W | 1470.8 lm/m | F |
| 3500 K | — | — | — | 122.8 lm/W | 1841.5 lm/m | E | 101.1 lm/W | 1515.9 lm/m | F |
| 4000 K | — | — | — | 125.7 lm/W | 1885.1 lm/m | E | 103.8 lm/W | 1556.4 lm/m | F |
| 5000 K | — | — | — | 125.7 lm/W | 1885.1 lm/m | E | — | — | — |
| 6500 K | — | — | — | 120.6 lm/W | 1808.5 lm/m | E | — | — | — |
Frequently Asked Questions
What are the key specifications of 13921-N?
13921-N: 2216, 350LEDs, DC24V, 5mm PCB, 2oz copper FPCB, cuttable 7LEDs/20mm. Full photometric data, wiring diagrams and test reports are available in the downloads section of this page.
How long can a single run of this ultra narrow LED strip be?
Maximum single run for this model is 5m. Feeding from both ends or using a mid-point tap halves the effective distance per segment, so a ultra narrow LED strip can cover twice that length on one circuit when wired accordingly.
Can DENO customise this ultra narrow LED strip for a project?
Yes. DENO manufactures the Ultra-Narrow SMD Strips series as an OEM and ODM supplier: reel length, colour temperature, CRI grade, PCB width, waterproofing and private labelling can all be specified. Request a quote for lead time and project pricing.
How narrow can a thin LED strip be?
DENO builds down to a 3 mm wide FPCB. A 3 mm LED strip fits aluminium channels, cabinet reveals, shelf edges and slim architectural slots where an 8 or 10 mm board cannot be hidden, while still carrying 2 oz copper for stable long runs.
Ultra Narrow LED Strip — Buyer Questions
How narrow can a 3mm LED strip be?
DENO's ultra-narrow boards start at 3 mm PCB width, with 4 mm, 5 mm, 6 mm and 8 mm as standard steps. A 3 mm strip fits inside slim aluminium reveals, glass-edge details and joinery grooves that will not accept the usual 8–10 mm tape.
Is a narrow LED strip less bright?
Not necessarily, but it has less copper for heat spreading, so output per metre is limited by thermal design rather than by the LEDs. DENO specifies 2 oz copper on 3–5 mm boards and recommends an aluminium profile; typical usable output is 6–14 W/m depending on width and density.
Can a 3mm LED strip still be high density?
Yes. Micro packages such as 1808, 2110 and 2216 allow 240–480 LEDs/m on a 3–5 mm board, so a narrow reveal can still be dot-free behind a shallow diffuser. Above that density the width usually has to grow to 8 mm for thermal reasons.
- Series ultra narrow LED strip series
- Related series high density LED strip boards from 240 LEDs/m
- Related series narrow SCOB LED strip for a fully dotless line
How tightly does a narrow LED strip bend?
A 3–5 mm board bends to a much tighter radius than standard tape and can be curved along its length without stressing the copper. For horizontal curves and corners, an S-bend layout removes the need to cut and solder at each turn.
What is the cut unit on an ultra-narrow LED strip?
Cut intervals typically run from 12.5 mm to 50 mm depending on voltage and density, and micro-cut versions shorten this further for exact millwork lengths. Ask for the cut unit in the quote — it decides how closely the finished run matches the drawing.
- Series ultra narrow LED strip series
- Related series micro cut LED strip for exact lengths
- Related series per-segment CC drive on short cut units
- Product 5267 micro cut narrow LED strip
Can I order a custom width LED strip?
Yes — PCB width from 3 mm, LED density, CCT and CRI, copper weight, cut unit, IP class and connector are all configurable. DENO is a manufacturer, so a non-standard width is tooled from an existing FPCB stack-up instead of being ruled out.
- Series ultra narrow LED strip series
- Related series custom LED strip lights built to order
- Guide send a narrow LED strip specification to DENO
- Product 9496 custom width LED strip