2835 Constant Current Special High Light Efficacy Ultra-Long LED Strip Light (#4775)
10mm · 60LEDs · 50mm/cut · 12~24V
Model: 4775
Overview
10mm | 12~24V | 60LEDs | 50mm/cut | #4775 | 2835 Constant Current Special High Light Efficacy Ultra-Long LED Strip Light is part of the DENO DENO WAP SMD Strips series, engineered around WAP waterproof LED strip. Key specifications: 2835, 60 LEDs/m, DC 12~24V, 10mm PCB, 3oz copper FPCB, cuttable 3LEDs/50mm. 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
10mm | 12~24V | 60LEDs | 50mm/cut | #4775 | 2835 Constant Current Special High Light Efficacy Ultra-Long LED Strip Light This new product is designed for the Solar cells, suitable for unstable voltage, so as to achieve constant power, constant output luminous flux.It is the same as the ordinary LED Light Strip.
We use 99.99% gold wire, large-size chips, and thickened FPCB, backed by a 5-year warranty.
Specifications
| LED QTY | 60 LEDs/m |
|---|---|
| PART NO | DL-F28A30V12~24-4775-* |
| SMD TYPE | 2835 |
| CUTTABLE UNIT | 3LEDs/50mm |
| DIMMABLE | Yes |
| LED PITCH | 16.6mm |
| LIFESPAN | 50000 |
| PCB WIDTH | 10mm |
| WARRANTY | 5 Years |
| BEAM ANGLE | 120° |
| LENGTH MAX | 10m |
| COPPER FOIL | 3oz |
| CIRCUIT TYPE | C.C. |
| INPUT VOLTAGE | DC 12~24V |
| 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 #4775
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: 206.4 lm/W at 4000K, Ra 80, ErP energy class B (Grade DN (1st 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 | 153 lm/W | 734.6 lm/m | D | 123 lm/W | 590.4 lm/m | E | — | — | — |
| 2300 K | 170.5 lm/W | 818.5 lm/m | C | 137 lm/W | 657.5 lm/m | D | 110.7 lm/W | 531.4 lm/m | E |
| 2700 K | 180.5 lm/W | 866.4 lm/m | C | 148.2 lm/W | 711.6 lm/m | D | 120.1 lm/W | 576.5 lm/m | E |
| 3000 K | 191.9 lm/W | 921 lm/m | B | 155.9 lm/W | 748.5 lm/m | D | 126.9 lm/W | 609.1 lm/m | E |
| 3500 K | 194.7 lm/W | 934.4 lm/m | B | 158.7 lm/W | 761.9 lm/m | D | 130.7 lm/W | 627.3 lm/m | E |
| 4000 K | 201 lm/W | 964.6 lm/m | B | 162.6 lm/W | 780.6 lm/m | C | 134.2 lm/W | 644 lm/m | E |
| 5000 K | 200.7 lm/W | 963.2 lm/m | B | 162.5 lm/W | 780.1 lm/m | C | 134.6 lm/W | 646 lm/m | E |
| 6500 K | 184.1 lm/W | 883.6 lm/m | C | 155.9 lm/W | 748.5 lm/m | D | 129.4 lm/W | 621 lm/m | E |
Grade DN (1st 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 | 161.7 lm/W | 776.3 lm/m | D | 136.5 lm/W | 655.1 lm/m | E | — | — | — |
| 2300 K | 176.3 lm/W | 846.3 lm/m | C | 152.2 lm/W | 730.8 lm/m | D | 123 lm/W | 590.4 lm/m | E |
| 2700 K | 190.1 lm/W | 912.4 lm/m | C | 164.8 lm/W | 791.1 lm/m | D | 133.6 lm/W | 641.2 lm/m | E |
| 3000 K | 199.6 lm/W | 957.9 lm/m | C | 173.9 lm/W | 834.8 lm/m | C | 141.5 lm/W | 679 lm/m | E |
| 3500 K | 202.6 lm/W | 972.3 lm/m | B | 177.7 lm/W | 853 lm/m | C | 146.3 lm/W | 702 lm/m | D |
| 4000 K | 206.4 lm/W | 990.5 lm/m | B | 178.7 lm/W | 857.8 lm/m | C | 147.5 lm/W | 707.8 lm/m | D |
| 5000 K | 206.1 lm/W | 989.1 lm/m | B | 179.8 lm/W | 863 lm/m | C | 148.9 lm/W | 715 lm/m | D |
| 6500 K | 197.6 lm/W | 948.3 lm/m | C | 171.9 lm/W | 825.2 lm/m | D | 142.7 lm/W | 684.8 lm/m | E |
Grade KE (3rd 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 |
|---|---|---|---|---|---|---|---|---|---|
| 1900 K | 132.7 lm/W | 636.8 lm/m | E | 106.4 lm/W | 510.8 lm/m | F | — | — | — |
| 2300 K | 148 lm/W | 710.2 lm/m | D | 118.6 lm/W | 569.3 lm/m | E | 95.8 lm/W | 460 lm/m | F |
| 2700 K | 159.4 lm/W | 765.3 lm/m | D | 128.8 lm/W | 618.2 lm/m | E | 104.3 lm/W | 500.8 lm/m | F |
| 3000 K | 167.4 lm/W | 803.6 lm/m | C | 136 lm/W | 652.7 lm/m | D | 110.6 lm/W | 530.9 lm/m | E |
| 3500 K | 169.9 lm/W | 815.6 lm/m | C | 138.7 lm/W | 665.6 lm/m | D | 114.1 lm/W | 547.7 lm/m | E |
| 4000 K | 174.9 lm/W | 839.5 lm/m | C | 141.6 lm/W | 679.5 lm/m | D | 116.9 lm/W | 561.1 lm/m | E |
| 5000 K | 174.6 lm/W | 838.1 lm/m | C | 141.6 lm/W | 679.5 lm/m | D | 117.2 lm/W | 562.6 lm/m | E |
| 6500 K | 167.4 lm/W | 803.6 lm/m | C | 135.9 lm/W | 652.2 lm/m | D | 112.8 lm/W | 541.5 lm/m | E |
Related models in this series
- Roll-to-Roll Long Reel LED Strip Light (#16775)
- Roll-to-Roll Long Reel LED Strip Light (#16777)
- Multi-Line Three-Row High-Density LED LED Strip Light (#16706)
- Multi-Line Four-Row High-Density LED LED Strip Light (#16705)
- Roll-to-Roll Long Reel LED Strip Light (#16773)
- Roll-to-Roll Long Reel LED Strip Light (#16776)
- 2835 Multi-Line Hight Efficiency LED Strip Light (#17510)
- 2835 Full Spectrum High Light Efficacy LED Strip Light (#5871-FS)
See every model in SMD LED Strip Series or narrow to 2835. 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 4775?
4775: 2835, 60 LEDs/m, DC 12~24V, 10mm PCB, 3oz copper FPCB, cuttable 3LEDs/50mm. Full photometric data, wiring diagrams and test reports are available in the downloads section of this page.
Which environments is this WAP waterproof LED strip rated for?
Ingress protection for this model is listed in the datasheet. As a WAP waterproof LED strip it is specified for the duty listed in the datasheet, and DENO can supply alternative coatings, sleeves or IP68 potting for harsher installations.
Can DENO customise this WAP waterproof LED strip for a project?
Yes. DENO manufactures the DENO WAP 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 much can a high efficacy LED strip cut energy use?
Moving from a typical 100 lm/W strip to a 180 to 200 lm/W high lumen LED strip roughly halves the wattage needed for the same lumen output. Over a long commercial run this also lowers the required driver size and helps the installation reach a better ErP energy class.
Is a coated waterproof LED strip better than a silicone sleeve?
The WAP nano-coating bonds to the board, so the strip keeps its original thickness, bend radius and heat dissipation while reaching IP67. A silicone sleeve adds bulk, traps heat and can yellow, though it remains the right choice for continuous immersion at IP68.
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.
High Efficiency LED Strip — Buyer Questions
What counts as a high efficiency LED strip in lumens per watt?
In 2026 a mainstream 24V 2835 board sits around 120-140 lm/W. A high efficiency LED strip starts at roughly 160 lm/W and DENO's top binned 2835 and 2110 boards are measured at up to 200 lm/W at 4000K Ra 80, LM-79 tested at 25 degrees Celsius. The figure is light-source efficacy of the tape itself, measured without the driver, which is exactly how the ErP energy label is calculated.
- Series High Efficiency LED Strips series
- Guide check lm/W and connected load per metre
- Related series 2835 boards with top-bin dies
What is the difference between high efficiency and high efficacy LED strip lights?
They describe the same measurement. Efficacy is the engineering term for lumens delivered per watt consumed; efficiency is how buyers and tender documents usually phrase it. DENO publishes lm/W per model so both audiences read the same number, and the ErP energy class printed on the reel is derived from it.
Which ErP energy class can a high efficiency LED strip reach?
Class C is achievable on the best-binned 2835 and 2110 boards above 180 lm/W, class D covers the 160-180 lm/W band and most well-specified architectural tape lands in class E. High-CRI 95+ and full spectrum builds drop one or two classes because phosphor conversion costs lumens. Every DENO datasheet states the measured class so it can be reproduced by a notified body.
- Series High Efficiency LED Strips series
- Related series when CRI outweighs raw lm/W
- Guide custom binning for tender energy targets
Does a high efficiency LED strip run cooler and last longer?
Yes. Fewer watts per lumen means less heat into the FPCB, so junction temperature drops and L70 lifetime extends. Combined with 2 oz copper and a 99.9% pure copper foil the same brightness can be produced at 20-30% lower wattage, which also lets a single driver feed a longer run and keeps aluminium profiles below the touch-temperature limits used in hospitality projects.
- Series High Efficiency LED Strips series
- Related series density versus watts per metre
- Related series profiles that sink heat away from the tape
- Product 16773 thick-copper efficient board
How much energy does a high efficiency LED strip save on a large project?
Take 500 m of cove lighting at 10 hours a day. A 130 lm/W board delivering 1000 lm/m draws about 7.7 W/m; a 190 lm/W board delivers the same output at about 5.3 W/m. Across 500 m that is 1.2 kW saved, roughly 4,380 kWh a year, and it usually removes one driver and one circuit from the electrical schedule as well.
Can I get a high efficiency LED strip in 12V, 24V, 36V or 48V?
24V is the efficiency sweet spot and carries the full binned range. 12V is available where fixture space or existing drivers dictate it, at the cost of shorter single-feed runs. 36V and 48V constant-current boards keep the same lm/W while extending a single feed well past 20 m, which is where the real system efficiency gain shows up on long architectural lines.
- Series High Efficiency LED Strips series
- Related series 48V boards for long efficient runs
- Related series long LED strip runs on one feed
- Product 16706 high-voltage efficient board
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 16776 mid-feed constant current LED strip