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
3528 100 ft-class LED strip lights — 36V DC, 90 LEDs/m on a 12mm, 3 oz copper board, cuttable every 100mm, CCT 2700-6500K, Ra≥80, IP20/IP65/IP67/IP68 options, constant-current circuit. Buyer decision: 36V plus CC regulation drives 30 m (98.4 ft) from one feed and 60 m from two — a genuine 100 ft run without mid-run power. With IP65-68 versions it is the outdoor long-run option: building outlines, landscape edges, facade contours. Custom CCT and length — request a factory quote.
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° |
| LENGTH MAX | 30m |
| COPPER FOIL | 3 oz |
| ON OFF TIMES | 10000（test times） |
| POWER RANGE | 1.8~10.8W |
| 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 — 48V feeding lets one run cover long corridors, warehouse aisles and facade lines with fewer injection points and fewer power supplies.
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
- 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: 107.7 lm/W at 4000K, Ra 80, ErP energy class F (Grade DL (2nd Tier) · 4.8W/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) · 4.8W/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 | 82.1 lm/W | 394.3 lm/m | G | 65.4 lm/W | 314 lm/m | G | — | — | — |
| 2300 K | 91.3 lm/W | 438.3 lm/m | F | 72.9 lm/W | 349.7 lm/m | G | — | — | — |
| 2700 K | 95.6 lm/W | 458.8 lm/m | F | 78.9 lm/W | 378.6 lm/m | G | 63.9 lm/W | 306.7 lm/m | G |
| 3000 K | 102.8 lm/W | 493.6 lm/m | F | 83 lm/W | 398.2 lm/m | G | 67.5 lm/W | 323.8 lm/m | G |
| 3500 K | 104.5 lm/W | 501.4 lm/m | F | 84.5 lm/W | 405.5 lm/m | G | 69.5 lm/W | 333.6 lm/m | G |
| 4000 K | 107.7 lm/W | 517 lm/m | F | 86.5 lm/W | 415.3 lm/m | F | 71.4 lm/W | 342.9 lm/m | G |
| 5000 K | 107.7 lm/W | 517 lm/m | F | 86.4 lm/W | 414.8 lm/m | F | — | — | — |
| 6500 K | 98.1 lm/W | 471.1 lm/m | F | 83 lm/W | 398.2 lm/m | G | — | — | — |
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 | 81.4 lm/W | 488.7 lm/m | G | 64.9 lm/W | 389.2 lm/m | G | — | — | — |
| 2300 K | 90.5 lm/W | 543.2 lm/m | F | 72.3 lm/W | 433.5 lm/m | G | — | — | — |
| 2700 K | 94.8 lm/W | 568.7 lm/m | F | 78.2 lm/W | 469.3 lm/m | G | 63.4 lm/W | 380.2 lm/m | G |
| 3000 K | 102 lm/W | 611.8 lm/m | F | 82.3 lm/W | 493.5 lm/m | G | 66.9 lm/W | 401.4 lm/m | G |
| 3500 K | 103.6 lm/W | 621.5 lm/m | F | 83.8 lm/W | 502.6 lm/m | G | 68.9 lm/W | 413.5 lm/m | G |
| 4000 K | 106.8 lm/W | 640.9 lm/m | F | 85.8 lm/W | 514.8 lm/m | F | 70.8 lm/W | 425 lm/m | G |
| 5000 K | 106.8 lm/W | 640.9 lm/m | F | 85.7 lm/W | 514.1 lm/m | F | — | — | — |
| 6500 K | 97.3 lm/W | 583.9 lm/m | F | 82.3 lm/W | 493.5 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 | — | — | — |
| 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 | — | — | — |
| 6500 K | 96.5 lm/W | 694.8 lm/m | F | 81.6 lm/W | 587.3 lm/m | G | — | — | — |
Related models in this series
- 3528 Classic LED Strip Light (#7332)
- 3528 CCT LED Strip Light (#5588)
- 3528 Classic LED Strip Light (#2305)
- 3528 Classic LED Strip Light (#7229)
- 3528 Classic LED Strip Light (#6774)
- 3528 Classic LED Strip Light (#11120)
- 3528 Ultra-Narrow LED Strip Light (#2296)
- 3528 Classic LED Strip Light (#2519)
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.
Does a constant current LED strip really eliminate voltage drop?
Voltage still drops along the copper, but the per-segment constant current IC holds LED current fixed until the local voltage falls below its dropout point. Brightness therefore stays even end to end, and power can be injected at one end, both ends or any mid point of the run.
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.
Constant Current LED Strip — Buyer Questions
What is a constant current LED strip?
A constant current LED strip carries a linear CC driver IC on the board that holds a fixed current through each segment regardless of the input voltage seen at that point. Brightness therefore stays flat along the run, instead of falling off with voltage drop the way a plain constant-voltage strip does.
Constant current vs constant voltage LED strip — which is better?
Constant voltage is cheaper and fine for short runs under 3 m. Constant current is the right choice whenever the run is long, the copper is thin, the input voltage is unstable, or the installation is camera-facing — the IC absorbs supply variation and keeps every metre at the same luminous flux.
Can a constant current LED strip be powered from both ends or mid-feed?
Yes. Because regulation happens per segment, DENO's CC boards accept single-end, both-ends and any mid-strip tap. Both-ends and mid-feed wiring halve the effective feed distance, which is how a single driver covers a long corridor or perimeter cove.
- Series constant current LED strip series
- Guide wiring layout planner for mid-feed CC runs
- Related series long-run CC LED strip builds
- Product 6774 mid-feed constant current LED strip
Does a constant current LED strip dim without flicker?
It does when the driver is matched to it. Linear CC ICs dim smoothly on PWM down to about 1%, and at 16 kHz+ PWM the run is flicker-free on camera (low Pst LM and SVM). Analogue dimming of a CC board is not recommended below 20% because the IC needs headroom.
- Series constant current LED strip series
- Guide flicker, Pst LM and SVM reference data
- Related series high-CRI boards for camera-facing work
How long can a constant current LED strip run be?
Up to 20 m and beyond on 24V or 48V builds with 2 oz copper, versus 5 m for a comparable constant-voltage board. The practical limit becomes the copper's current-carrying capacity and thermal design rather than perceived brightness fall-off.
Can I order a custom constant current LED strip?
Yes — segment length, drive current, voltage, LED density, CCT/CRI, PCB width and copper weight are all configurable, and CC regulation can be combined with high-density, ultra-narrow or full-spectrum layouts on the same board.
- Series constant current LED strip series
- Related series custom LED strip lights built to order
- Related series combine CC drive with high density layouts
Long LED Strip Lights — Buyer Questions
Do you supply extra long LED strip lights in 65.6 ft or 100 ft?
Yes. 65.6 ft (20 m) and 100 ft (30 m) are stock run lengths, and anything longer than 32 feet is supplied as one uncut board rather than two reels joined with a connector. Joints are the usual failure point on extra long LED strip lights, so removing them is the single biggest reliability gain on a large install.
Which long outdoor LED strip lights are rated for wet locations?
Long outdoor LED strip lights are built IP65 silicone-coated, IP67 sleeved or IP68 fully potted, with DENO WAP™ conformal coating that stays clear instead of yellowing under UV. For facade and perimeter work the run length also has to survive thermal cycling, so outdoor boards use 3 oz copper and a wider PCB to spread heat.
- Series long LED strip lights series
- Related series marine grade LED strip for exposed runs
- Related series DENO WAP™ conformal coating explained
Can long LED light strips be cut to an exact length for a room or kitchen?
Yes. Cut units run from 12.5 mm to 100 mm depending on voltage and density, so a run can be trimmed to a drawing dimension on site, and DENO also pre-cuts and pre-wires to length at the factory for room, cove and kitchen installations. Ask for the cut unit in the quote — it decides how closely the finished line matches the millwork.
- Series long LED strip lights series
- Related series micro cut LED strip for exact lengths
- Guide send a cut-to-length specification to DENO
- Product 2519 cut-to-length LED strip