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.

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.

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.

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.

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.

2835 Hight Efficiency LED Strip Light (#16946)

10mm · 24V · 128LEDs · 62.5cut

Model: 16946

16946 10mm | 24V | 128LEDs | 62.5cut | #16946 | 2835 Hight Efficiency LED Strip Light — 24V, cuttable every 62.5mm, 10mm FPCB width, 2835 LEDs, 128 LEDs/m, 1800–6500K

Overview

10mm | 24V | 128LEDs | 62.5cut | #16946 | 2835 Hight Efficiency LED Strip Light is part of the DENO C.C. SMD Strips (IC Regulated) series, engineered around constant current IC LED strip. Key specifications: 2835, 128, 24V, 10mm PCB, 3 oz copper FPCB, cuttable 8LEDs/62.5mm. 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

Engineered with 128 high-efficiency 2835 SMD LEDs per meter on a 10mm PCB, this LED strip light is available for factory-direct wholesale project supply. Single-bin sorting under 3 SDCM combined with constant current circuit design ensures flawless color consistency and stable luminous output across 24V systems. Built on a robust 3 oz copper PCB with 62.5mm cut increments, it delivers efficient heat dissipation and flexible sizing on job sites. Versatile dimming capability allows smooth brightness control through standard DALI, Triac, PWM, and 0-10V systems for architectural lighting installations.

We use 99.99% gold wire, large-size chips, and thickened FPCB, backed by a 5-year warranty.

Specifications

CCT (K)	1800–6500K
CRI	Ra≥80 / Ra≥90
SDCM	< 3 SDCM (Single Bin)
POWER (W/M)	16.8 W/m
LED QTY	128
PART NO	DL-F28A64V24-16946-*
SMD TYPE	2835
CUTTABLE UNIT	8LEDs/62.5mm
DIMMABLE	Yes
IP RATING	IP20
LED PITCH	7.813mm
PCB WIDTH	10mm
WARRANTY	5 Years
BEAM ANGLE	120°
RUN LENGTH	5m
COPPER FOIL	3 oz
ON OFF TIMES	10000 (test times)
POWER RANGE	2~23W
CIRCUIT TYPE	C.C.
INPUT VOLTAGE	24V
LUMINOUS FLUX	1876–3140 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.

Recommended accessories & compatible parts

DL-1003 — 19.1x8mm Surface Mount LED Channel — Dotless Aluminum Profile for 240 LEDs/m Strip: Accepts LED strips up to 10mm wide.
DL-1103-1 — 16x13mm Surface Mount LED Channel — Aluminum Profile for 10mm LED Strip: Accepts LED strips up to 10mm wide.
DL-1510 HX-F — 15x9.9mm Recessed LED Channel with Flange — Flush Mount Aluminum Profile: Accepts LED strips up to 10mm 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 #16946

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

Contact DENO LED engineers · OEM / ODM capability

Photometric Performance — CCT × CRI Efficacy Matrix

Peak measured luminous efficacy: 197.1 lm/W at 4000K, Ra 80, ErP energy class B (Grade DL (2nd Tier) · 9.6W/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) · 9.6W/m

Grade DL (2nd Tier) · 9.6W/m — measured at 9.6 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	150.1 lm/W	1441.4 lm/m	D	120.5 lm/W	1157 lm/m	E	—	—	—
2300 K	167.2 lm/W	1604.9 lm/m	C	134.3 lm/W	1289 lm/m	E	108.8 lm/W	1044.5 lm/m	F
2700 K	176.9 lm/W	1698.4 lm/m	C	145.3 lm/W	1394.7 lm/m	D	117.8 lm/W	1130.6 lm/m	E
3000 K	188.2 lm/W	1807.1 lm/m	B	152.9 lm/W	1467.8 lm/m	D	124.3 lm/W	1193.5 lm/m	E
3500 K	191 lm/W	1833.5 lm/m	B	155.6 lm/W	1494.2 lm/m	D	128.1 lm/W	1230.1 lm/m	E
4000 K	197.1 lm/W	1892.4 lm/m	B	159.4 lm/W	1529.8 lm/m	D	131.5 lm/W	1262.6 lm/m	E
5000 K	196.9 lm/W	1890.4 lm/m	B	159.2 lm/W	1528.7 lm/m	D	131.4 lm/W	1261.4 lm/m	E
6500 K	180.5 lm/W	1732.9 lm/m	C	152.8 lm/W	1466.8 lm/m	D	126.8 lm/W	1217.3 lm/m	E

Grade DL (2nd Tier) · 11.5W/m

Grade DL (2nd Tier) · 11.5W/m — measured at 11.5 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	148.2 lm/W	1703.8 lm/m	D	118.9 lm/W	1367.6 lm/m	E	—	—	—
2300 K	165 lm/W	1897.1 lm/m	C	132.5 lm/W	1523.7 lm/m	E	107.3 lm/W	1234 lm/m	F
2700 K	174.6 lm/W	2007.5 lm/m	C	143.4 lm/W	1648.5 lm/m	D	116.2 lm/W	1336.4 lm/m	E
3000 K	185.7 lm/W	2136 lm/m	B	150.9 lm/W	1735 lm/m	D	122.7 lm/W	1410.8 lm/m	E
3500 K	188.5 lm/W	2167.2 lm/m	B	153.6 lm/W	1766.2 lm/m	D	126.4 lm/W	1454 lm/m	E
4000 K	194.5 lm/W	2236.9 lm/m	B	157.2 lm/W	1808.2 lm/m	D	129.8 lm/W	1492.5 lm/m	E
5000 K	194.3 lm/W	2234.5 lm/m	B	157.1 lm/W	1807 lm/m	D	129.6 lm/W	1490.4 lm/m	E
6500 K	178.1 lm/W	2048.4 lm/m	C	150.8 lm/W	1733.8 lm/m	D	125.1 lm/W	1438.7 lm/m	E

Grade DL (2nd Tier) · 15.4W/m

Grade DL (2nd Tier) · 15.4W/m — measured at 15.4 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	144.2 lm/W	2219.9 lm/m	D	115.7 lm/W	1781.9 lm/m	E	—	—	—
2300 K	160.5 lm/W	2471.8 lm/m	C	128.9 lm/W	1985.3 lm/m	E	104.4 lm/W	1607.8 lm/m	F
2700 K	169.9 lm/W	2615.7 lm/m	C	139.5 lm/W	2148 lm/m	D	113.1 lm/W	1741.2 lm/m	E
3000 K	180.7 lm/W	2783.1 lm/m	C	146.8 lm/W	2260.6 lm/m	D	119.4 lm/W	1838.2 lm/m	E
3500 K	183.4 lm/W	2823.8 lm/m	C	149.4 lm/W	2301.3 lm/m	D	123 lm/W	1894.5 lm/m	E
4000 K	189.3 lm/W	2914.5 lm/m	B	153 lm/W	2356 lm/m	D	126.3 lm/W	1944.6 lm/m	E
5000 K	189.1 lm/W	2911.4 lm/m	B	152.9 lm/W	2354.5 lm/m	D	126.1 lm/W	1941.9 lm/m	E
6500 K	173.3 lm/W	2668.9 lm/m	C	146.7 lm/W	2259 lm/m	D	121.8 lm/W	1875.7 lm/m	E

Grade DL (2nd Tier) · 19.2W/m

Grade DL (2nd Tier) · 19.2W/m — measured at 19.2 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	140.4 lm/W	2694.8 lm/m	D	112.7 lm/W	2163 lm/m	E	—	—	—
2300 K	156.3 lm/W	3000.5 lm/m	D	125.5 lm/W	2409.9 lm/m	E	101.7 lm/W	1952.6 lm/m	F
2700 K	165.4 lm/W	3175.3 lm/m	C	135.8 lm/W	2607.4 lm/m	D	110.1 lm/W	2113.7 lm/m	E
3000 K	176 lm/W	3378.5 lm/m	C	142.9 lm/W	2744.2 lm/m	D	116.2 lm/W	2231.4 lm/m	E
3500 K	178.5 lm/W	3427.8 lm/m	C	145.5 lm/W	2793.5 lm/m	D	119.8 lm/W	2299.8 lm/m	E
4000 K	184.3 lm/W	3538 lm/m	C	149 lm/W	2860 lm/m	D	122.9 lm/W	2360.5 lm/m	E
5000 K	184.1 lm/W	3534.2 lm/m	C	148.9 lm/W	2858.1 lm/m	D	122.8 lm/W	2357.8 lm/m	E
6500 K	168.7 lm/W	3239.8 lm/m	C	142.8 lm/W	2742.3 lm/m	D	118.5 lm/W	2275.2 lm/m	E

Grade DN (1st Tier) · 9.6W/m

Grade DN (1st Tier) · 9.6W/m — measured at 9.6 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	144.4 lm/W	1386.5 lm/m	E	121.7 lm/W	1168.1 lm/m	E	—	—	—
2300 K	157.6 lm/W	1512.5 lm/m	D	135.8 lm/W	1303.2 lm/m	E	110 lm/W	1056 lm/m	F
2700 K	169.7 lm/W	1629.3 lm/m	D	147 lm/W	1410.9 lm/m	D	119.1 lm/W	1143.8 lm/m	E
3000 K	178.3 lm/W	1711.6 lm/m	C	155.1 lm/W	1489.1 lm/m	D	126.1 lm/W	1210.8 lm/m	E
3500 K	180.9 lm/W	1737 lm/m	C	158.5 lm/W	1521.6 lm/m	D	130.5 lm/W	1252.5 lm/m	E
4000 K	184.3 lm/W	1769.5 lm/m	C	159.4 lm/W	1529.8 lm/m	D	131.5 lm/W	1262.6 lm/m	E
5000 K	184.1 lm/W	1767.5 lm/m	C	160.4 lm/W	1539.9 lm/m	D	132.3 lm/W	1270.1 lm/m	E
6500 K	176.5 lm/W	1694.3 lm/m	C	153.3 lm/W	1471.9 lm/m	D	127.3 lm/W	1222.1 lm/m	E

Grade DN (1st Tier) · 11.5W/m

Grade DN (1st Tier) · 11.5W/m — measured at 11.5 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	142.5 lm/W	1638.9 lm/m	E	120.1 lm/W	1380.8 lm/m	E	—	—	—
2300 K	155.5 lm/W	1787.8 lm/m	D	134 lm/W	1540.5 lm/m	E	108.5 lm/W	1247.8 lm/m	F
2700 K	167.5 lm/W	1925.9 lm/m	D	145 lm/W	1667.8 lm/m	E	117.6 lm/W	1352 lm/m	F
3000 K	175.9 lm/W	2023.2 lm/m	C	153.1 lm/W	1760.2 lm/m	D	124.5 lm/W	1431.2 lm/m	E
3500 K	178.5 lm/W	2053.2 lm/m	C	156.4 lm/W	1798.6 lm/m	D	128.7 lm/W	1480.4 lm/m	E
4000 K	181.9 lm/W	2091.6 lm/m	C	157.2 lm/W	1808.2 lm/m	D	129.8 lm/W	1492.5 lm/m	E
5000 K	181.7 lm/W	2089.2 lm/m	C	158.3 lm/W	1820.2 lm/m	D	130.6 lm/W	1501.9 lm/m	E
6500 K	174.2 lm/W	2002.7 lm/m	C	151.3 lm/W	1739.8 lm/m	D	125.6 lm/W	1444.4 lm/m	E

Grade DN (1st Tier) · 15.4W/m

Grade DN (1st Tier) · 15.4W/m — measured at 15.4 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	138.7 lm/W	2135.4 lm/m	E	116.8 lm/W	1799.1 lm/m	F	—	—	—
2300 K	151.3 lm/W	2329.4 lm/m	D	130.3 lm/W	2007.2 lm/m	E	105.6 lm/W	1626.2 lm/m	F
2700 K	162.9 lm/W	2509.3 lm/m	D	141.1 lm/W	2173 lm/m	E	114.4 lm/W	1761.5 lm/m	F
3000 K	171.2 lm/W	2636.1 lm/m	D	148.9 lm/W	2293.4 lm/m	D	121.1 lm/W	1864.8 lm/m	E
3500 K	173.7 lm/W	2675.2 lm/m	C	152.2 lm/W	2343.5 lm/m	D	125.3 lm/W	1928.9 lm/m	E
4000 K	177 lm/W	2725.2 lm/m	C	153 lm/W	2356 lm/m	D	126.3 lm/W	1944.6 lm/m	E
5000 K	176.8 lm/W	2722.1 lm/m	C	154 lm/W	2371.7 lm/m	D	127.1 lm/W	1957.3 lm/m	E
6500 K	169.4 lm/W	2609.5 lm/m	D	147.2 lm/W	2266.9 lm/m	D	122.2 lm/W	1881.9 lm/m	E

Grade DN (1st Tier) · 19.2W/m

Grade DN (1st Tier) · 19.2W/m — measured at 19.2 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	135 lm/W	2592.2 lm/m	E	113.7 lm/W	2183.9 lm/m	F	—	—	—
2300 K	147.3 lm/W	2827.7 lm/m	D	126.9 lm/W	2436.5 lm/m	E	102.8 lm/W	1973.8 lm/m	F
2700 K	158.7 lm/W	3046.1 lm/m	D	137.4 lm/W	2637.8 lm/m	E	111.4 lm/W	2138.4 lm/m	F
3000 K	166.7 lm/W	3199.9 lm/m	D	145 lm/W	2784 lm/m	E	117.9 lm/W	2263.7 lm/m	F
3500 K	169.1 lm/W	3247.4 lm/m	D	148.2 lm/W	2844.8 lm/m	D	122 lm/W	2341.6 lm/m	E
4000 K	172.3 lm/W	3308.2 lm/m	D	149 lm/W	2860 lm/m	D	122.9 lm/W	2360.5 lm/m	E
5000 K	172.1 lm/W	3304.4 lm/m	D	149.9 lm/W	2879 lm/m	D	123.7 lm/W	2375 lm/m	E
6500 K	165 lm/W	3167.7 lm/m	D	143.3 lm/W	2751.8 lm/m	E	119 lm/W	2284.8 lm/m	E

Grade KE (3rd Tier) · 9.6W/m

Grade KE (3rd Tier) · 9.6W/m — measured at 9.6 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	149.3 lm/W	1433.3 lm/m	D	119.9 lm/W	1150.9 lm/m	E	—	—	—
2300 K	166.4 lm/W	1597.8 lm/m	C	133.5 lm/W	1281.9 lm/m	E	108.2 lm/W	1038.7 lm/m	F
2700 K	179.3 lm/W	1721.7 lm/m	C	145 lm/W	1391.6 lm/m	D	117.4 lm/W	1127.5 lm/m	E
3000 K	188.3 lm/W	1808.1 lm/m	B	153 lm/W	1468.8 lm/m	D	124.4 lm/W	1194.6 lm/m	E
3500 K	191.2 lm/W	1835.5 lm/m	B	156.1 lm/W	1498.3 lm/m	D	128.5 lm/W	1233.2 lm/m	E
4000 K	196.8 lm/W	1889.3 lm/m	B	159.4 lm/W	1529.8 lm/m	D	131.5 lm/W	1262.6 lm/m	E
5000 K	196.5 lm/W	1886.3 lm/m	B	159.4 lm/W	1529.8 lm/m	D	131.5 lm/W	1262.4 lm/m	E
6500 K	188.3 lm/W	1808.1 lm/m	B	153 lm/W	1468.8 lm/m	D	127 lm/W	1219.2 lm/m	E

Grade KE (3rd Tier) · 11.5W/m

Grade KE (3rd Tier) · 11.5W/m — measured at 11.5 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	147.3 lm/W	1694.2 lm/m	D	118.3 lm/W	1360.4 lm/m	E	—	—	—
2300 K	164.2 lm/W	1888.7 lm/m	C	131.8 lm/W	1515.3 lm/m	E	106.7 lm/W	1227.1 lm/m	F
2700 K	177 lm/W	2035.2 lm/m	C	143 lm/W	1644.9 lm/m	D	115.9 lm/W	1332.8 lm/m	E
3000 K	185.8 lm/W	2137.2 lm/m	B	151 lm/W	1736.2 lm/m	D	122.8 lm/W	1412 lm/m	E
3500 K	188.7 lm/W	2169.6 lm/m	B	154 lm/W	1771 lm/m	D	126.8 lm/W	1457.6 lm/m	E
4000 K	194.2 lm/W	2233.3 lm/m	B	157.2 lm/W	1808.2 lm/m	D	129.8 lm/W	1492.5 lm/m	E
5000 K	193.9 lm/W	2229.7 lm/m	B	157.2 lm/W	1808.2 lm/m	D	129.7 lm/W	1491.6 lm/m	E
6500 K	185.8 lm/W	2137.2 lm/m	B	151 lm/W	1736.2 lm/m	D	125.3 lm/W	1441 lm/m	E

Grade KE (3rd Tier) · 15.4W/m

Grade KE (3rd Tier) · 15.4W/m — measured at 15.4 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	143.3 lm/W	2207.4 lm/m	D	115.1 lm/W	1772.5 lm/m	E	—	—	—
2300 K	159.8 lm/W	2460.8 lm/m	D	128.2 lm/W	1974.3 lm/m	E	103.8 lm/W	1598.5 lm/m	F
2700 K	172.2 lm/W	2651.7 lm/m	C	139.2 lm/W	2143.3 lm/m	D	112.8 lm/W	1736.5 lm/m	E
3000 K	180.8 lm/W	2784.7 lm/m	C	146.9 lm/W	2262.2 lm/m	D	119.5 lm/W	1839.8 lm/m	E
3500 K	183.6 lm/W	2826.9 lm/m	C	149.8 lm/W	2307.5 lm/m	D	123.3 lm/W	1899.2 lm/m	E
4000 K	188.9 lm/W	2909.8 lm/m	B	153 lm/W	2356 lm/m	D	126.3 lm/W	1944.6 lm/m	E
5000 K	188.6 lm/W	2905.1 lm/m	B	153 lm/W	2356 lm/m	D	126.2 lm/W	1943.5 lm/m	E
6500 K	180.8 lm/W	2784.7 lm/m	C	146.9 lm/W	2262.2 lm/m	D	121.9 lm/W	1877.3 lm/m	E

Grade KE (3rd Tier) · 19.2W/m

Grade KE (3rd Tier) · 19.2W/m — measured at 19.2 W/m: luminous efficacy (lm/W), luminous flux (lm/m) and ErP energy class per CCT and CRI grade.
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	139.6 lm/W	2679.6 lm/m	D	112.1 lm/W	2151.7 lm/m	E	—	—	—
2300 K	155.6 lm/W	2987.2 lm/m	D	124.8 lm/W	2396.6 lm/m	E	101.1 lm/W	1941.1 lm/m	F
2700 K	167.7 lm/W	3218.9 lm/m	C	135.5 lm/W	2601.7 lm/m	D	109.8 lm/W	2108 lm/m	F
3000 K	176.1 lm/W	3380.4 lm/m	C	143 lm/W	2746.1 lm/m	D	116.3 lm/W	2233.3 lm/m	E
3500 K	178.7 lm/W	3431.6 lm/m	C	145.9 lm/W	2801.1 lm/m	D	120.1 lm/W	2305.5 lm/m	E
4000 K	184 lm/W	3532.3 lm/m	C	149 lm/W	2860 lm/m	D	122.9 lm/W	2360.5 lm/m	E
5000 K	183.7 lm/W	3526.6 lm/m	C	149 lm/W	2860 lm/m	D	122.9 lm/W	2359.7 lm/m	E
6500 K	176.1 lm/W	3380.4 lm/m	C	143 lm/W	2746.1 lm/m	D	118.7 lm/W	2279 lm/m	E

High-Power LED Strip: Heat Dissipation & Aluminum Channel Guide

At up to 19.2W/m, 16946 is a high-power SMD LED strip. Above roughly 14.4W/m the tape can no longer shed its own heat through the FPC alone — an aluminum channel is part of the luminaire, not an accessory.

Why high-wattage strips need a heat sink

Aluminum conducts heat roughly 30× faster than the plastics, MDF or gypsum a strip is usually stuck to, so a bare high-power run traps heat under the tape.
LED lifetime (LM-80 / TM-21) is driven by solder-point temperature Tc. Keeping Tc inside the datasheet limit — DENO strips are rated Tc ≤ 75°C — is what preserves the rated L70 lifetime and colour stability.
Never run 14.4W/m or more coiled on the reel, inside a sealed plastic diffuser, or directly on wood, wallpaper or foam.

Sizing rule: FPC width vs channel inner width

Channel inner width ≥ FPC width + 2mm. This strip is 10mm wide, so it needs at least 12mm of inner width.
The 2mm clearance absorbs extrusion tolerance and lets the tape be seated or replaced without scraping the side walls or the wiring.
A frosted or opal PC cover then diffuses the higher lumen output into an even, dot-free line instead of visible hot spots.

Aluminum channels that fit this strip

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 10mm wide, so it needs a channel with at least 12mm inner width (10mm + 2mm clearance). Every profile below meets that.

Related models in this series

See every model in SMD LED Strip Series or narrow to High Efficiency. 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 16946?

16946: 2835, 128, 24V, 10mm PCB, 3 oz copper FPCB, cuttable 8LEDs/62.5mm. 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 8LEDs/62.5mm and an LED pitch of 7.813mm, 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.

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.

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.

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.

High Efficiency LED Strips series — High Efficiency LED Strip — Buyer Questions
constant current LED strip series — Constant Current LED Strip — Buyer Questions
LED strip engineering selection handbook