Which colour temperature is best for backlit onyx or marble?

2700–3000 K for onyx, travertine and amber-veined stone so the minerals glow instead of turning grey; 4000–6500 K for white marble, quartz and solid surface so the slab stays white instead of looking yellow. With the tunable #6600 sheet you set the exact point on site with the slab already installed.

How energy efficient is a high-efficacy LED sheet?

The #6600 reaches 234.8 lm/W, which delivers the same light as a market-standard 100 lm/W sheet for roughly 57 % less power. On a full countertop that is both a lower running cost and materially less heat trapped between the LED sheet and the stone.

Can an LED sheet be cut into any shape?

The single-color #6433 cuts every single LED on a 20 × 20 mm grid — the finest cutting unit in flexible LED sheets. Staircase the cuts around a curve or a logo and the sheet fills almost any outline; the 20 mm modules that come off can be reconnected and reused elsewhere.

Does the white LED sheet come in high CRI and full spectrum?

Yes — CRI 80, 90 and 95 plus a full spectrum grade, in colour temperatures from 1800 K to 6500 K. Specify CRI 95 or full spectrum for countertops, retail displays and any surface where stone or product colour is judged at close range.

Single Color LED Light Sheet 480x240mm (#6433)

Name: Single Color LED Light Sheet 480x240mm | 24V | 288 LEDs | 1-LED Cut | #6433
Brand: DENO LED
SKU: 6433
Availability: InStock

24V · 288 LEDs · 1-LED Cut

Model: 6433

6433 Single Color LED Light Sheet 480x240mm | 24V | 288 LEDs | 1-LED Cut | #6433 — 24V, cuttable every 20*20mm, 240x480mm FPCB width, 2835 LEDs, 288 LEDs/m, IP20/IP65

Overview

Single Color LED Light Sheet 480x240mm | 24V | 288 LEDs | 1-LED Cut | #6433 is manufactured by DENO LED, a Shenzhen-based LED lighting manufacturer with its own Foshan production base. Key data: 2835 LEDs, 288 LEDs/pcs, DC 24V, 240x480mm FPCB, 2oz copper foil, 20~138W power, cut unit 1LED/20*20mm. Built on 99.9% pure copper FPCB with 99.99% gold bonding wire and covered by a 5-year warranty, it is specified for architectural, retail, hospitality and joinery lighting. OEM and ODM builds of length, colour temperature, CRI and ingress protection are available.

Description

Engineered on a 20x20mm grid, this flexible LED light sheet features 288 SMD 2835 LEDs cuttable per single diode for precision backlit stone fabrication. Operating on constant voltage 24V DC with a 20 to 138W power range, this dimmable unit delivers uniform output across a 120-degree beam angle. Built with 2oz copper foil for optimal thermal management, up to four 480x240mm sheets can be connected together for wholesale project supply. Available from 1800K to 6500K with CRI 80, 90, 95 and full spectrum options to satisfy high-end commercial and architectural lighting specifications. Offered factory-direct with IP20 standard construction or optional IP65 potting to accommodate diverse backlit quartz, marble, and advertising lightbox installations.

Specifications

LED QTY	288 LEDs/pcs
PART NO	DL-F28A288V24-6433-*
SMD TYPE	2835
CUTTABLE UNIT	1LED/20*20mm
DIMMABLE	Yes
IP RATING	IP20/IP65
LED PITCH	20mm
PCB WIDTH	240x480mm
BEAM ANGLE	120°
RUN LENGTH	4pcs
COPPER FOIL	2oz
POWER RANGE	20~138W
CIRCUIT TYPE	C.V.
INPUT VOLTAGE	DC 24V

Applications

Backlit stone, onyx & marble surfaces — 480×240mm modules tile behind translucent slabs to deliver even backlighting without hotspots across large countertop and wall panels.
Shallow lightboxes & SEG frames — Sheet format keeps the illuminated cavity thin, so signage and fabric lightboxes stay slim while staying evenly lit edge to edge.
Curved and irregular panels — The flexible sheet can be free-cut and shaped to follow non-rectangular graphics, reception desks and column cladding.
Trade-show & retail backlit graphics — A single 24V feed lights a large backlit graphic, simplifying wiring for shopfitting and trade-show installs.

Request a quotation for #6433

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: 137.5 lm/W at 4000K, Ra 80, ErP energy class E (Grade DN (1st Tier) · 20W/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) · 20W/m

Grade DL (2nd Tier) · 20W/m — measured at 20 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	90.6 lm/W	1812 lm/m	F	71.9 lm/W	1438.4 lm/m	G	—	—	—
2300 K	100.8 lm/W	2015.9 lm/m	F	80.1 lm/W	1602.7 lm/m	G	64.9 lm/W	1298 lm/m	G
2700 K	104.9 lm/W	2098 lm/m	F	86.8 lm/W	1735.1 lm/m	F	70.3 lm/W	1406.6 lm/m	G
3000 K	113.4 lm/W	2267.6 lm/m	E	91.3 lm/W	1825.2 lm/m	F	74.3 lm/W	1486.1 lm/m	G
3500 K	115.2 lm/W	2304.7 lm/m	E	93 lm/W	1859.6 lm/m	F	76.4 lm/W	1528.5 lm/m	G
4000 K	118.9 lm/W	2378.8 lm/m	E	95.1 lm/W	1902 lm/m	F	78.5 lm/W	1570.9 lm/m	G
5000 K	118.8 lm/W	2376.2 lm/m	E	95.1 lm/W	1902 lm/m	F	78.5 lm/W	1570 lm/m	G
6500 K	108.1 lm/W	2161.6 lm/m	F	91.3 lm/W	1825.2 lm/m	F	75.7 lm/W	1514 lm/m	G

Grade DL (2nd Tier) · 30W/m

Grade DL (2nd Tier) · 30W/m — measured at 30 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	84.5 lm/W	2533.6 lm/m	G	67 lm/W	2011.3 lm/m	G	—	—	—
2300 K	94 lm/W	2818.8 lm/m	F	74.7 lm/W	2240.9 lm/m	G	60.5 lm/W	1815 lm/m	G
2700 K	97.8 lm/W	2933.6 lm/m	F	80.9 lm/W	2426.1 lm/m	G	65.6 lm/W	1966.8 lm/m	G
3000 K	105.7 lm/W	3170.6 lm/m	F	85.1 lm/W	2552.1 lm/m	F	69.3 lm/W	2078 lm/m	G
3500 K	107.4 lm/W	3222.5 lm/m	F	86.7 lm/W	2600.2 lm/m	F	71.2 lm/W	2137.2 lm/m	G
4000 K	110.9 lm/W	3326.2 lm/m	E	88.6 lm/W	2659.5 lm/m	F	73.2 lm/W	2196.5 lm/m	G
5000 K	110.8 lm/W	3322.5 lm/m	E	88.6 lm/W	2659.5 lm/m	F	73.1 lm/W	2193 lm/m	G
6500 K	100.7 lm/W	3022.5 lm/m	F	85.1 lm/W	2552.1 lm/m	F	70.6 lm/W	2118 lm/m	G

Grade DL (2nd Tier) · 50W/m

Grade DL (2nd Tier) · 50W/m — measured at 50 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	73.4 lm/W	3669.1 lm/m	G	58.3 lm/W	2912.8 lm/m	G	—	—	—
2300 K	81.6 lm/W	4082.2 lm/m	G	64.9 lm/W	3245.4 lm/m	G	52.6 lm/W	2630 lm/m	G
2700 K	85 lm/W	4248.5 lm/m	G	70.3 lm/W	3513.6 lm/m	G	57 lm/W	2848.4 lm/m	G
3000 K	91.8 lm/W	4591.8 lm/m	F	73.9 lm/W	3696 lm/m	G	60.2 lm/W	3009.3 lm/m	G
3500 K	93.3 lm/W	4666.9 lm/m	F	75.3 lm/W	3765.7 lm/m	G	61.9 lm/W	3095.2 lm/m	G
4000 K	96.3 lm/W	4817.1 lm/m	F	77 lm/W	3851.5 lm/m	G	63.6 lm/W	3181 lm/m	G
5000 K	96.2 lm/W	4811.7 lm/m	F	77 lm/W	3851.5 lm/m	G	63.6 lm/W	3180 lm/m	G
6500 K	87.5 lm/W	4377.2 lm/m	F	73.9 lm/W	3696 lm/m	G	61.4 lm/W	3070 lm/m	G

Grade DL (2nd Tier) · 60W/m

Grade DL (2nd Tier) · 60W/m — measured at 60 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	68.4 lm/W	4104.3 lm/m	G	54.3 lm/W	3258.2 lm/m	G	—	—	—
2300 K	76.1 lm/W	4566.3 lm/m	G	60.5 lm/W	3630.3 lm/m	G	49 lm/W	2940 lm/m	G
2700 K	79.2 lm/W	4752.3 lm/m	G	65.5 lm/W	3930.3 lm/m	G	53.1 lm/W	3186.2 lm/m	G
3000 K	85.6 lm/W	5136.4 lm/m	F	68.9 lm/W	4134.3 lm/m	G	56.1 lm/W	3366.2 lm/m	G
3500 K	87 lm/W	5220.4 lm/m	F	70.2 lm/W	4212.3 lm/m	G	57.7 lm/W	3462.2 lm/m	G
4000 K	89.8 lm/W	5388.4 lm/m	F	71.8 lm/W	4308.3 lm/m	G	59.3 lm/W	3558.2 lm/m	G
5000 K	89.7 lm/W	5382.4 lm/m	F	71.8 lm/W	4308.3 lm/m	G	59.2 lm/W	3552 lm/m	G
6500 K	81.6 lm/W	4896.3 lm/m	G	68.9 lm/W	4134.3 lm/m	G	57.2 lm/W	3432 lm/m	G

Grade DL (2nd Tier) · 120W/m

Grade DL (2nd Tier) · 120W/m — measured at 120 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	44.9 lm/W	5385.5 lm/m	G	35.6 lm/W	4275.3 lm/m	G	—	—	—
2300 K	49.9 lm/W	5991.7 lm/m	G	39.7 lm/W	4763.5 lm/m	G	32.2 lm/W	3864 lm/m	G
2700 K	52 lm/W	6235.8 lm/m	G	43 lm/W	5157.1 lm/m	G	34.8 lm/W	4180.8 lm/m	G
3000 K	56.2 lm/W	6739.7 lm/m	G	45.2 lm/W	5424.8 lm/m	G	36.8 lm/W	4417 lm/m	G
3500 K	57.1 lm/W	6849.9 lm/m	G	46.1 lm/W	5527.2 lm/m	G	37.9 lm/W	4543 lm/m	G
4000 K	58.9 lm/W	7070.4 lm/m	G	47.1 lm/W	5653.2 lm/m	G	38.9 lm/W	4669 lm/m	G
5000 K	58.9 lm/W	7062.5 lm/m	G	47.1 lm/W	5653.2 lm/m	G	38.9 lm/W	4668 lm/m	G
6500 K	53.5 lm/W	6424.8 lm/m	G	45.2 lm/W	5424.8 lm/m	G	37.5 lm/W	4500 lm/m	G

Grade DN (1st Tier) · 20W/m

Grade DN (1st Tier) · 20W/m — measured at 20 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	107.8 lm/W	2156.3 lm/m	F	90.2 lm/W	1804 lm/m	G	—	—	—
2300 K	117.5 lm/W	2349.7 lm/m	F	100.7 lm/W	2013.3 lm/m	F	81.5 lm/W	1630 lm/m	G
2700 K	126.6 lm/W	2532.5 lm/m	E	108.9 lm/W	2177.5 lm/m	F	88.2 lm/W	1764.3 lm/m	G
3000 K	133 lm/W	2659.6 lm/m	E	115.1 lm/W	2302 lm/m	F	93.6 lm/W	1872.9 lm/m	F
3500 K	135 lm/W	2699.4 lm/m	E	117.6 lm/W	2352.4 lm/m	F	96.8 lm/W	1936.5 lm/m	F
4000 K	137.5 lm/W	2749.7 lm/m	E	118.3 lm/W	2365.6 lm/m	F	97.6 lm/W	1952.4 lm/m	F
5000 K	137.4 lm/W	2747.1 lm/m	E	119.1 lm/W	2381.5 lm/m	E	98.2 lm/W	1964 lm/m	F
6500 K	131.7 lm/W	2633.2 lm/m	E	113.8 lm/W	2275.5 lm/m	F	94.4 lm/W	1888 lm/m	F

Grade DN (1st Tier) · 30W/m

Grade DN (1st Tier) · 30W/m — measured at 30 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	100.5 lm/W	3015.1 lm/m	F	84.1 lm/W	2522.4 lm/m	G	—	—	—
2300 K	109.5 lm/W	3285.5 lm/m	F	93.8 lm/W	2815.1 lm/m	F	76 lm/W	2280 lm/m	G
2700 K	118 lm/W	3541.1 lm/m	F	101.5 lm/W	3044.7 lm/m	F	82.2 lm/W	2466.9 lm/m	G
3000 K	124 lm/W	3718.8 lm/m	E	107.3 lm/W	3218.8 lm/m	F	87.3 lm/W	2618.7 lm/m	G
3500 K	125.8 lm/W	3774.4 lm/m	E	109.6 lm/W	3289.2 lm/m	F	90.3 lm/W	2707.6 lm/m	G
4000 K	128.2 lm/W	3844.8 lm/m	E	110.3 lm/W	3307.7 lm/m	F	91 lm/W	2729.9 lm/m	G
5000 K	128 lm/W	3841.1 lm/m	E	111 lm/W	3329.9 lm/m	F	91.6 lm/W	2748 lm/m	G
6500 K	122.7 lm/W	3681.8 lm/m	E	106.1 lm/W	3181.8 lm/m	F	88 lm/W	2640 lm/m	G

Grade DN (1st Tier) · 50W/m

Grade DN (1st Tier) · 50W/m — measured at 50 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	87.3 lm/W	4366.5 lm/m	G	73.1 lm/W	3653 lm/m	G	—	—	—
2300 K	95.2 lm/W	4758.1 lm/m	F	81.5 lm/W	4076.8 lm/m	G	66 lm/W	3300 lm/m	G
2700 K	102.6 lm/W	5128.2 lm/m	F	88.2 lm/W	4409.4 lm/m	G	71.5 lm/W	3572.6 lm/m	G
3000 K	107.7 lm/W	5385.7 lm/m	F	93.2 lm/W	4661.5 lm/m	F	75.9 lm/W	3792.5 lm/m	G
3500 K	109.3 lm/W	5466.2 lm/m	F	95.3 lm/W	4763.4 lm/m	F	78.4 lm/W	3921.3 lm/m	G
4000 K	111.4 lm/W	5568.1 lm/m	F	95.8 lm/W	4790.3 lm/m	F	79.1 lm/W	3953.4 lm/m	G
5000 K	111.3 lm/W	5562.7 lm/m	F	96.4 lm/W	4822.4 lm/m	F	79.6 lm/W	3980 lm/m	G
6500 K	106.6 lm/W	5332.1 lm/m	F	92.2 lm/W	4607.9 lm/m	F	76.5 lm/W	3825 lm/m	G

Grade DN (1st Tier) · 60W/m

Grade DN (1st Tier) · 60W/m — measured at 60 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	81.4 lm/W	4884.3 lm/m	G	68.1 lm/W	4086.3 lm/m	G	—	—	—
2300 K	88.7 lm/W	5322.4 lm/m	G	76 lm/W	4560.3 lm/m	G	61.6 lm/W	3696 lm/m	G
2700 K	95.6 lm/W	5736.4 lm/m	F	82.2 lm/W	4932.3 lm/m	G	66.6 lm/W	3996.3 lm/m	G
3000 K	100.4 lm/W	6024.4 lm/m	F	86.9 lm/W	5214.4 lm/m	G	70.7 lm/W	4242.3 lm/m	G
3500 K	101.9 lm/W	6114.4 lm/m	F	88.8 lm/W	5328.4 lm/m	G	73.1 lm/W	4386.3 lm/m	G
4000 K	103.8 lm/W	6228.4 lm/m	F	89.3 lm/W	5358.4 lm/m	G	73.7 lm/W	4422.3 lm/m	G
5000 K	103.7 lm/W	6222.4 lm/m	F	89.9 lm/W	5394.4 lm/m	G	74.2 lm/W	4452 lm/m	G
6500 K	99.4 lm/W	5964.4 lm/m	F	85.9 lm/W	5154.4 lm/m	G	71.3 lm/W	4278 lm/m	G

Grade DN (1st Tier) · 120W/m

Grade DN (1st Tier) · 120W/m — measured at 120 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	53.4 lm/W	6409 lm/m	G	44.7 lm/W	5361.8 lm/m	G	—	—	—
2300 K	58.2 lm/W	6983.8 lm/m	G	49.9 lm/W	5983.8 lm/m	G	40.4 lm/W	4848 lm/m	G
2700 K	62.7 lm/W	7527 lm/m	G	53.9 lm/W	6472 lm/m	G	43.7 lm/W	5243.7 lm/m	G
3000 K	65.9 lm/W	7905 lm/m	G	57 lm/W	6842.1 lm/m	G	46.4 lm/W	5566.5 lm/m	G
3500 K	66.9 lm/W	8023.1 lm/m	G	58.3 lm/W	6991.6 lm/m	G	48 lm/W	5755.5 lm/m	G
4000 K	68.1 lm/W	8172.7 lm/m	G	58.6 lm/W	7031 lm/m	G	48.4 lm/W	5802.8 lm/m	G
5000 K	68 lm/W	8164.8 lm/m	G	59 lm/W	7078.3 lm/m	G	48.7 lm/W	5844 lm/m	G
6500 K	65.2 lm/W	7826.2 lm/m	G	56.4 lm/W	6763.3 lm/m	G	46.8 lm/W	5616 lm/m	G

Grade KE (3rd Tier) · 20W/m

Grade KE (3rd Tier) · 20W/m — measured at 20 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	64.2 lm/W	1284.8 lm/m	G	50.6 lm/W	1011.9 lm/m	G	—	—	—
2300 K	71.5 lm/W	1430.5 lm/m	G	56.4 lm/W	1128.5 lm/m	G	45.7 lm/W	914 lm/m	G
2700 K	77.1 lm/W	1541.7 lm/m	G	61.1 lm/W	1221.2 lm/m	G	49.5 lm/W	990.7 lm/m	G
3000 K	81.1 lm/W	1621.2 lm/m	G	64.8 lm/W	1295.4 lm/m	G	52.7 lm/W	1054.3 lm/m	G
3500 K	82.3 lm/W	1645.1 lm/m	G	66.1 lm/W	1321.9 lm/m	G	54.4 lm/W	1088.8 lm/m	G
4000 K	84.6 lm/W	1692.7 lm/m	G	67.6 lm/W	1351 lm/m	G	55.8 lm/W	1115.3 lm/m	G
5000 K	84.5 lm/W	1690.1 lm/m	G	67.4 lm/W	1348.4 lm/m	G	55.6 lm/W	1112 lm/m	G
6500 K	81.1 lm/W	1621.2 lm/m	G	64.8 lm/W	1295.4 lm/m	G	53.8 lm/W	1076 lm/m	G

Grade KE (3rd Tier) · 30W/m

Grade KE (3rd Tier) · 30W/m — measured at 30 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	59.9 lm/W	1796.5 lm/m	G	47.2 lm/W	1414.9 lm/m	G	—	—	—
2300 K	66.7 lm/W	2000.2 lm/m	G	52.6 lm/W	1577.9 lm/m	G	42.6 lm/W	1278 lm/m	G
2700 K	71.9 lm/W	2155.7 lm/m	G	56.9 lm/W	1707.6 lm/m	G	46.2 lm/W	1385.3 lm/m	G
3000 K	75.6 lm/W	2266.9 lm/m	G	60.4 lm/W	1811.3 lm/m	G	49.1 lm/W	1474.2 lm/m	G
3500 K	76.7 lm/W	2300.2 lm/m	G	61.6 lm/W	1848.3 lm/m	G	50.7 lm/W	1522.4 lm/m	G
4000 K	78.9 lm/W	2366.9 lm/m	G	63 lm/W	1889.1 lm/m	G	52 lm/W	1559.4 lm/m	G
5000 K	78.8 lm/W	2363.2 lm/m	G	62.8 lm/W	1885.4 lm/m	G	51.8 lm/W	1554 lm/m	G
6500 K	75.6 lm/W	2266.9 lm/m	G	60.4 lm/W	1811.3 lm/m	G	50.1 lm/W	1503 lm/m	G

Grade KE (3rd Tier) · 50W/m

Grade KE (3rd Tier) · 50W/m — measured at 50 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	52 lm/W	2601.7 lm/m	G	41 lm/W	2049.1 lm/m	G	—	—	—
2300 K	57.9 lm/W	2896.7 lm/m	G	45.7 lm/W	2285.2 lm/m	G	37 lm/W	1850 lm/m	G
2700 K	62.4 lm/W	3122 lm/m	G	49.5 lm/W	2472.9 lm/m	G	40.1 lm/W	2006.2 lm/m	G
3000 K	65.7 lm/W	3282.9 lm/m	G	52.5 lm/W	2623.1 lm/m	G	42.7 lm/W	2135 lm/m	G
3500 K	66.6 lm/W	3331.2 lm/m	G	53.5 lm/W	2676.8 lm/m	G	44.1 lm/W	2204.7 lm/m	G
4000 K	68.6 lm/W	3427.7 lm/m	G	54.7 lm/W	2735.8 lm/m	G	45.2 lm/W	2258.3 lm/m	G
5000 K	68.4 lm/W	3422.4 lm/m	G	54.6 lm/W	2730.4 lm/m	G	45.1 lm/W	2255 lm/m	G
6500 K	65.7 lm/W	3282.9 lm/m	G	52.5 lm/W	2623.1 lm/m	G	43.5 lm/W	2175 lm/m	G

Grade KE (3rd Tier) · 60W/m

Grade KE (3rd Tier) · 60W/m — measured at 60 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	48.5 lm/W	2910.2 lm/m	G	38.2 lm/W	2292.2 lm/m	G	—	—	—
2300 K	54 lm/W	3240.2 lm/m	G	42.6 lm/W	2556.2 lm/m	G	34.5 lm/W	2070 lm/m	G
2700 K	58.2 lm/W	3492.2 lm/m	G	46.1 lm/W	2766.2 lm/m	G	37.4 lm/W	2244.2 lm/m	G
3000 K	61.2 lm/W	3672.3 lm/m	G	48.9 lm/W	2934.2 lm/m	G	39.8 lm/W	2388.2 lm/m	G
3500 K	62.1 lm/W	3726.3 lm/m	G	49.9 lm/W	2994.2 lm/m	G	41.1 lm/W	2466.2 lm/m	G
4000 K	63.9 lm/W	3834.3 lm/m	G	51 lm/W	3060.2 lm/m	G	42.1 lm/W	2526.2 lm/m	G
5000 K	63.8 lm/W	3828.3 lm/m	G	50.9 lm/W	3054.2 lm/m	G	42 lm/W	2520 lm/m	G
6500 K	61.2 lm/W	3672.3 lm/m	G	48.9 lm/W	2934.2 lm/m	G	40.6 lm/W	2436 lm/m	G

Grade KE (3rd Tier) · 120W/m

Grade KE (3rd Tier) · 120W/m — measured at 120 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	31.8 lm/W	3818.6 lm/m	G	25.1 lm/W	3007.7 lm/m	G	—	—	—
2300 K	35.4 lm/W	4251.7 lm/m	G	28 lm/W	3354.1 lm/m	G	22.6 lm/W	2712 lm/m	G
2700 K	38.2 lm/W	4582.4 lm/m	G	30.2 lm/W	3629.7 lm/m	G	24.5 lm/W	2944.7 lm/m	G
3000 K	40.2 lm/W	4818.6 lm/m	G	32.1 lm/W	3850.1 lm/m	G	26.1 lm/W	3133.6 lm/m	G
3500 K	40.7 lm/W	4889.4 lm/m	G	32.7 lm/W	3928.9 lm/m	G	27 lm/W	3236 lm/m	G
4000 K	41.9 lm/W	5031.2 lm/m	G	33.5 lm/W	4015.5 lm/m	G	27.6 lm/W	3314.7 lm/m	G
5000 K	41.9 lm/W	5023.3 lm/m	G	33.4 lm/W	4007.6 lm/m	G	27.6 lm/W	3312 lm/m	G
6500 K	40.2 lm/W	4818.6 lm/m	G	32.1 lm/W	3850.1 lm/m	G	26.6 lm/W	3192 lm/m	G

Related models in this series

Tunable White LED Sheet 480x240mm (#6600)

See every model in Flexible LED Sheets or narrow to Single Color Led Sheet. 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 #6433?

Single Color LED Light Sheet 480x240mm | 24V | 288 LEDs | 1-LED Cut | #6433: 2835 LEDs, 288 LEDs/pcs, DC 24V, 240x480mm FPCB, 2oz copper foil, 20~138W power, cut unit 1LED/20*20mm. Photometric files, wiring diagrams and test reports are available in the downloads block on this page.

Which LED driver and run length suit #6433?

Single Color LED Light Sheet 480x240mm | 24V | 288 LEDs | 1-LED Cut | #6433 is a constant-voltage DC 24V product, so pair it with a CE or UL listed DC 24V constant-voltage LED driver rated about 20% above the connected load. Maximum single run is 4pcs. 4pcs Single / 8pcs Dual Input power. Feeding from both ends or mid-feeding halves the copper distance and roughly quarters the voltage drop.

Where can #6433 be cut on site?

Cut only on the printed cut marks: 1LED/20*20mm. LED pitch is 20mm. Re-solder the cut end or use a matched solderless connector, and reseal the end cap on IP-rated versions so the ingress rating is kept.

How is #6433 mounted in a lightbox or behind backlit stone?

The 480 x 240 mm sheet is a flat panel, not a strip, so it is not installed in an aluminium channel. Fix it flat to the lightbox back panel or to the substrate behind the translucent slab using the thermal adhesive backing or mechanical fixings, tiling several sheets edge to edge for larger surfaces. Mount it against a metal or aluminium-faced back panel so the panel spreads the heat, since there is no channel acting as a heat sink. Uniformity is set by the cavity depth between the sheet and the diffuser together with the LED pitch of the model, not by the wattage alone - see the tested lightbox depth and cutting comparison on this page.

How bright is #6433 and how wide is the beam?

Beam angle is 120°. Mounting depth, diffuser transmittance and LED pitch decide the final uniformity, so plan the lightbox cavity depth together with the LED pitch rather than the wattage alone.

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.

Single Color & Tunable White LED Sheet series — Backlit Stone & Tunable White LED Sheet — Buyer Questions
LED strip engineering selection handbook

Tested lightbox depth, cutting precision and efficacy — all 10 LED sheets compared

Three numbers decide whether an LED sheet works in your cabinet: the diffuser depth it needs before the dots disappear, the smallest piece you can cut without losing a channel, and the load it puts on the driver. The table below lists all ten DENO FlexLite sheets against those three measured figures so a shallow stone lightbox, an irregular logo or a low-load SEG frame can be specified in one pass.

LED sheet comparison: tested minimum diffuser depth, smallest cuttable unit and power range / efficacy for each 480 × 240 mm FlexLite sheet.
Model	Family / grid	LED pitch	Tested lightbox depth	Cutting precision	Load / efficacy
#6433 (this page)	Single colour — 288 × 2835	20 mm	15–25 mm	1 LED — 20 × 20 mm, both axes	20–138 W per sheet
#6600	Tunable white 2700–6500 K — 576 × 2835	20 mm	15–25 mm	2 LEDs — 20 × 20 mm, both axes	20–120 W per sheet · 234.8 lm/W peak
#6352	RGB — 288 × 5050	20 mm	15–25 mm	12 LEDs — every 20 mm, one axis	17.2–70 W per sheet
#17947	RGB — 162 × 5050	26.7 mm	30 mm and deeper	6 LEDs — every 53.3 mm, one axis	Lower current than #6352 at the same voltage
#16797	RGBW — 288 × 5050	19.9 mm	15–25 mm	12 LEDs — every 120 mm, one axis	Highest RGBW density in the range
#16796	RGBW — 162 × 5050	26.7 mm	30 mm and deeper	6 LEDs — 53.3 × 80 mm, both axes	13–50 W per sheet
#16795	RGBW — 98 × 5050	34.3 mm	30–40 mm	7 LEDs — 34.3 × 240 mm, one axis	12–26.8 W per sheet — lowest load of the bare-emitter grids
#6432	RGBWW 5-in-1 — 288 × 5050	20 mm	20–40 mm	12 LEDs — 20 × 240 mm, one axis	20–110 W per sheet
#6105	Wide-angle lens, 24 V — 50 × 2835, 160° lens	48 mm	40–60 mm	1 LED — 48 × 48 mm, both axes	12–60 W per sheet — 50 LEDs cover the full sheet
#6710	Wide-angle lens, 12 V — 50 × 6060, 160° lens	48 mm	40–60 mm	1 LED — 48 × 48 mm, both axes	10–60 W per sheet at 12 V

Diffuser depth is the air gap measured between the LED sheet and opal acrylic in our lightbox rig; a translucent stone slab counts its own thickness towards that gap.
Cutting precision is the smallest complete unit that keeps every colour channel intact — always cut on the printed line so the reconnection pads survive.
Plan four sheets from a single-end feed and eight with dual-end input, then size the driver at the sheet's maximum wattage plus 30 % headroom.