3528 Long Run LED Strip Light (#4991)
12mm · 36V · 90LEDs · 100cut
Model: 4991

Overview
12mm | 36V | 90LEDs | 100cut | #4991 | 3528 Ultra-long LED Strip Light is part of the DENO C.C. SMD Strips (IC Regulated) series, engineered around constant current IC LED strip. Key specifications: 3528, 90, 36V, 12mm PCB, 3 oz copper FPCB, cuttable 9LEDs/100mm, IP20/IP65/IP67/IP68, CRI Ra≥80. 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
12mm | 36V | 90LEDs | 100cut | #4991 | 3528 Long Run LED Strip Light Engineered with a constant-current circuit and 36V input, this 3528 long run LED strip light supports continuous single-feed runs up to 30 meters. The heavy-duty 12mm PCB incorporates 3 oz copper foil, housing 90 LEDs per meter with precise cut points every 100mm. It delivers 850 lumens per meter across 2700K to 6500K with a 120-degree beam angle and smooth dimming capability. Ingress protection options ranging from IP20 to IP68 make this strip ideal for building outlines, landscape edges, and outdoor facade contours. We provide factory-direct wholesale project supply with OEM custom lengths and specialized color temperatures tailored to commercial lighting installations.
Ultra Long Run Led Strip built for ultra-long smd strips projects.
Specifications
| CCT (K) | 2700-6500 |
|---|---|
| CRI | Ra≥80 |
| SDCM | < 3 SDCM (Single Bin) |
| LED QTY | 90 |
| PART NO | DL-F35A45V36-4991-* |
| SMD TYPE | 3528 |
| CUTTABLE UNIT | 9LEDs/100mm |
| DIMMABLE | Yes |
| IP RATING | IP20/IP65/IP67/IP68 |
| LED PITCH | 11.11mm |
| LIFESPAN | 50000 |
| PCB WIDTH | 12mm |
| WARRANTY | 5 Years |
| BEAM ANGLE | 120° |
| RUN LENGTH | 30m |
| COPPER FOIL | 3 oz |
| ON OFF TIMES | 10000(test times) |
| POWER RANGE | 1.8~7.2W |
| CIRCUIT TYPE | C.C. |
| INPUT VOLTAGE | 36V |
| LUMINOUS FLUX | 850 lm/m |
| 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.
- Long corridor & warehouse runs — Long single-feed runs on 36V cover corridors, warehouse aisles and facade lines with fewer injection points and fewer power supplies.
Recommended accessories & compatible parts
- DL-1201 — 25x14.5mm Wide Surface Mount LED Channel — Aluminum Profile for 12mm Strip: Accepts LED strips up to 12mm wide.
- DL-1202 — 17.3x14.5mm Surface Mount LED Channel — Deep Aluminum Profile for 12mm Strip: Accepts LED strips up to 12mm wide.
- DL-1204 — 25x7mm Wide Slim Surface Mount LED Channel — Dotless Aluminum Profile for 240 LEDs/m: Accepts LED strips up to 12mm wide.
- V1 — 5-36VDC 1-Channel * 8A RF+Push Dimming Controller | V1: Matched by input voltage range and colour channels.
Request a quotation for #4991
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: 108.6 lm/W at 4000K, Ra 80, ErP energy class F (Grade DL (2nd Tier) · 3.6W/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) · 3.6W/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 | 82.8 lm/W | 298.2 lm/m | G | 66 lm/W | 237.5 lm/m | G | — | — | — |
| 2300 K | 92.1 lm/W | 331.5 lm/m | F | 73.5 lm/W | 264.5 lm/m | G | 59.4 lm/W | 213.8 lm/m | G |
| 2700 K | 96.4 lm/W | 347 lm/m | F | 79.5 lm/W | 286.4 lm/m | G | 64.4 lm/W | 232 lm/m | G |
| 3000 K | 103.7 lm/W | 373.3 lm/m | F | 83.7 lm/W | 301.2 lm/m | G | 68 lm/W | 244.9 lm/m | G |
| 3500 K | 105.3 lm/W | 379.2 lm/m | F | 85.2 lm/W | 306.7 lm/m | F | 70.1 lm/W | 252.3 lm/m | G |
| 4000 K | 108.6 lm/W | 391.1 lm/m | F | 87.3 lm/W | 314.1 lm/m | F | 72 lm/W | 259.3 lm/m | G |
| 5000 K | 108.6 lm/W | 391.1 lm/m | F | 87.1 lm/W | 313.7 lm/m | F | 72.1 lm/W | 259.7 lm/m | G |
| 6500 K | 99 lm/W | 356.3 lm/m | F | 83.7 lm/W | 301.2 lm/m | G | 69.4 lm/W | 249.7 lm/m | G |
Grade DL (2nd Tier) · 5.4W/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 | 81.8 lm/W | 441.7 lm/m | G | 65.1 lm/W | 351.8 lm/m | G | — | — | — |
| 2300 K | 90.9 lm/W | 491 lm/m | F | 72.6 lm/W | 391.8 lm/m | G | 58.7 lm/W | 316.7 lm/m | G |
| 2700 K | 95.2 lm/W | 514 lm/m | F | 78.5 lm/W | 424.1 lm/m | G | 63.6 lm/W | 343.6 lm/m | G |
| 3000 K | 102.4 lm/W | 552.9 lm/m | F | 82.6 lm/W | 446.1 lm/m | G | 67.2 lm/W | 362.8 lm/m | G |
| 3500 K | 104 lm/W | 561.7 lm/m | F | 84.1 lm/W | 454.3 lm/m | G | 69.2 lm/W | 373.7 lm/m | G |
| 4000 K | 107.3 lm/W | 579.2 lm/m | F | 86.2 lm/W | 465.2 lm/m | F | 71.1 lm/W | 384.1 lm/m | G |
| 5000 K | 107.3 lm/W | 579.2 lm/m | F | 86.1 lm/W | 464.7 lm/m | F | 71.2 lm/W | 384.7 lm/m | G |
| 6500 K | 97.7 lm/W | 527.7 lm/m | F | 82.6 lm/W | 446.1 lm/m | G | 68.5 lm/W | 369.9 lm/m | G |
Grade DL (2nd Tier) · 7.2W/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 | 80.8 lm/W | 581.5 lm/m | G | 64.3 lm/W | 463.2 lm/m | G | — | — | — |
| 2300 K | 89.8 lm/W | 646.4 lm/m | F | 71.6 lm/W | 515.8 lm/m | G | 57.9 lm/W | 417 lm/m | G |
| 2700 K | 94 lm/W | 676.7 lm/m | F | 77.6 lm/W | 558.4 lm/m | G | 62.8 lm/W | 452.4 lm/m | G |
| 3000 K | 101.1 lm/W | 728 lm/m | F | 81.6 lm/W | 587.3 lm/m | G | 66.3 lm/W | 477.6 lm/m | G |
| 3500 K | 102.7 lm/W | 739.5 lm/m | F | 83.1 lm/W | 598.1 lm/m | G | 68.3 lm/W | 492 lm/m | G |
| 4000 K | 105.9 lm/W | 762.6 lm/m | F | 85.1 lm/W | 612.5 lm/m | F | 70.2 lm/W | 505.7 lm/m | G |
| 5000 K | 105.9 lm/W | 762.6 lm/m | F | 85 lm/W | 611.8 lm/m | G | 70.3 lm/W | 506.5 lm/m | G |
| 6500 K | 96.5 lm/W | 694.8 lm/m | F | 81.6 lm/W | 587.3 lm/m | G | 67.6 lm/W | 487 lm/m | G |
Recommended LED Channels
Mount this LED strip in a DENO LED aluminum profile for heat dissipation, physical protection and diffused, dot-free output.
This strip is 12mm wide, so it needs a channel with at least 14mm inner width (12mm + 2mm clearance). Every profile below meets that.
Related models in this series
- 3528 Classic LED Strip Light (#2175)
- 3528 Classic LED Strip Light (#2269)
- 3528 CCT LED Strip Light (#2311)
- 3528 Classic LED Strip Light (#0010)
- 3528 Classic LED Strip Light (#11120)
- 3528 Classic LED Strip Light (#2519)
- 3528 High Density Micro-Cut LED Strip Light (#2714)
- 3528 Ultra-Narrow LED Strip Light (#2664)
See every model in SMD LED Strip Series or narrow to 3528. 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 specifications of 4991?
4991: 3528, 90, 36V, 12mm PCB, 3 oz copper FPCB, cuttable 9LEDs/100mm, IP20/IP65/IP67/IP68, CRI Ra≥80. Full photometric data, wiring diagrams and test reports are available in the downloads section of this page.
What makes the construction of this constant current IC LED strip different?
It is built as a constant current IC LED strip on 3 oz copper FPCB with a cutting unit of 9LEDs/100mm and an LED pitch of 11.11mm, so it holds its electrical and mechanical performance where standard strips fail.
Can DENO customise this constant current IC LED strip for a project?
Yes. DENO manufactures the C.C. SMD Strips (IC Regulated) 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.
When should you use a 36V LED strip instead of 24V?
Choose 36V when a single run exceeds what a 24V LED strip can feed within a 3 percent voltage drop. At the same power per metre a higher bus voltage means lower current and roughly half the drop of 24V over the same distance, so corridors, facades and cove runs can be fed from one end with fewer power injection points.
What limits how long an LED strip run can be?
Voltage drop and conductor current, not the LED itself. A long run LED strip combines low watts per metre, 2 oz or thicker copper and a higher bus voltage such as 24V, 36V or 48V to reach 20 m or more from one feed while staying inside a 3 percent drop.
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.
- 36V SMD Strips series — 36V LED Strip Lights — Buyer Questions
- constant current LED strip series — Constant Current LED Strip — Buyer Questions
- LED strip engineering selection handbook