2835 Ultra-Narrow LED Strip Light (#6644)

Name: 5mm | 24V | 120LEDs | 12W | 50cut | #6644 | 2835 Ultra-Narrow LED Strip Light
Brand: DENO LED
SKU: 6644
Availability: InStock

Model: 6644

6644 #6644 | 2835 Ultra-Narrow LED Strip Light — 24V, cuttable every 50mm, 5mm FPCB width, 2835 LEDs, 120 LEDs/m

Overview

2835 Ultra-Narrow LED Strip Light | 5mm | 24V | 120LEDs | 12W | 50cut | #6644 is part of the DENO Ultra-Narrow SMD Strips series, engineered around ultra narrow LED strip. Key specifications: 2835, 120 LEDs/m, 24V, 5 mm PCB, 3oz copper FPCB, cuttable 6LEDs/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

#6644 | 2835 Ultra-Narrow LED Strip Light Strong pure copper LED frame, and diameter>1mm, 99.9%-purity gold wire encapsulation, can reduce damage to the LED in different applications.

Ultra Narrow Led Strip built for ultra-narrow smd strips projects.

Specifications

LED QTY	120 LEDs/m
PART NO	DL-F28A60V24-6644-*
SMD TYPE	2835
CUTTABLE UNIT	6LEDs/50mm
DIMMABLE	Yes
LED PITCH	8.3mm
PCB WIDTH	5 mm
BEAM ANGLE	120°
LENGTH MAX	5M
COPPER FOIL	3oz
ON OFF TIMES	10000（test times）
POWER RANGE	2.4~14.4W
CIRCUIT TYPE	C.V.
INPUT VOLTAGE	24V
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.
Ultra-narrow 5mm channels & shadow gaps — Fits shadow-gap details, slim profiles and joinery grooves that cannot take a standard 8–10mm strip.

Request a quotation for #6644

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

Contact DENO LED engineers · OEM / ODM capability

Photometric Performance — CCT × CRI Efficacy Matrix

Peak measured luminous efficacy: 139.2 lm/W at 4000K, Ra 80, ErP energy class E (Grade DN (1st Tier)).

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)

Grade DL (2nd Tier) — measured at 7.2 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	97 lm/W	698.3 lm/m	F	77.5 lm/W	557.7 lm/m	G	—	—	—
2300 K	107.9 lm/W	776.8 lm/m	F	86.3 lm/W	621.3 lm/m	F	69.9 lm/W	503.3 lm/m	G
2700 K	113.3 lm/W	815.7 lm/m	E	93.3 lm/W	672.1 lm/m	F	75.6 lm/W	544.3 lm/m	G
3000 K	121.5 lm/W	874.7 lm/m	E	98.2 lm/W	707.3 lm/m	F	79.9 lm/W	574.9 lm/m	G
3500 K	123.4 lm/W	888.2 lm/m	E	100 lm/W	720 lm/m	F	82.2 lm/W	592.1 lm/m	G
4000 K	127.3 lm/W	916.6 lm/m	E	102.4 lm/W	737.2 lm/m	F	84.5 lm/W	608.6 lm/m	G
5000 K	127.1 lm/W	915.1 lm/m	E	102.3 lm/W	736.4 lm/m	F	84.4 lm/W	607.7 lm/m	G
6500 K	116.1 lm/W	835.8 lm/m	E	98.1 lm/W	706.5 lm/m	F	81.4 lm/W	586.1 lm/m	G

Grade DL (2nd Tier)

Grade DL (2nd Tier) — 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	95.4 lm/W	915.5 lm/m	F	76.2 lm/W	731.2 lm/m	G	—	—	—
2300 K	106.1 lm/W	1018.4 lm/m	F	84.8 lm/W	814.5 lm/m	G	68.7 lm/W	659.5 lm/m	G
2700 K	111.4 lm/W	1069.4 lm/m	E	91.8 lm/W	881.2 lm/m	F	74.3 lm/W	713.6 lm/m	G
3000 K	119.5 lm/W	1146.8 lm/m	E	96.6 lm/W	927.2 lm/m	F	78.5 lm/W	753.8 lm/m	G
3500 K	121.3 lm/W	1164.4 lm/m	E	98.3 lm/W	943.9 lm/m	F	80.9 lm/W	776.3 lm/m	G
4000 K	125.2 lm/W	1201.7 lm/m	E	100.7 lm/W	966.4 lm/m	F	83.1 lm/W	797.9 lm/m	G
5000 K	125 lm/W	1199.7 lm/m	E	100.6 lm/W	965.5 lm/m	F	83 lm/W	796.8 lm/m	G
6500 K	114.1 lm/W	1095.8 lm/m	E	96.5 lm/W	926.3 lm/m	F	80.1 lm/W	769 lm/m	G

Grade DL (2nd Tier)

Grade DL (2nd Tier) — measured at 12 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	93.8 lm/W	1125.2 lm/m	F	74.9 lm/W	898.7 lm/m	G	—	—	—
2300 K	104.3 lm/W	1251.7 lm/m	F	83.4 lm/W	1001.1 lm/m	G	67.6 lm/W	811.2 lm/m	G
2700 K	109.5 lm/W	1314.4 lm/m	F	90.3 lm/W	1083.1 lm/m	F	73.1 lm/W	877 lm/m	G
3000 K	117.5 lm/W	1409.5 lm/m	E	95 lm/W	1139.7 lm/m	F	77.2 lm/W	926.4 lm/m	G
3500 K	119.3 lm/W	1431.2 lm/m	E	96.7 lm/W	1160.2 lm/m	F	79.5 lm/W	954.1 lm/m	G
4000 K	123.1 lm/W	1477 lm/m	E	99 lm/W	1187.9 lm/m	F	81.7 lm/W	980.7 lm/m	G
5000 K	122.9 lm/W	1474.6 lm/m	E	98.9 lm/W	1186.7 lm/m	F	81.6 lm/W	979.2 lm/m	G
6500 K	112.2 lm/W	1346.9 lm/m	E	94.9 lm/W	1138.5 lm/m	F	78.7 lm/W	944.4 lm/m	G

Grade DN (1st Tier)

Grade DN (1st Tier) — measured at 7.2 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	109.1 lm/W	785.8 lm/m	F	91.7 lm/W	660.2 lm/m	G	—	—	—
2300 K	119 lm/W	856.8 lm/m	E	102.3 lm/W	736.4 lm/m	F	82.8 lm/W	596.2 lm/m	G
2700 K	128.2 lm/W	923.3 lm/m	E	110.7 lm/W	797 lm/m	F	89.7 lm/W	645.9 lm/m	G
3000 K	134.7 lm/W	969.7 lm/m	E	116.9 lm/W	841.8 lm/m	F	95.1 lm/W	684.8 lm/m	F
3500 K	136.8 lm/W	984.6 lm/m	E	119.5 lm/W	860.5 lm/m	E	98.3 lm/W	708 lm/m	F
4000 K	139.2 lm/W	1002.6 lm/m	E	120.1 lm/W	865 lm/m	E	99.2 lm/W	714 lm/m	F
5000 K	139 lm/W	1001.1 lm/m	E	121 lm/W	871 lm/m	E	99.8 lm/W	718.6 lm/m	F
6500 K	133.3 lm/W	960 lm/m	E	115.6 lm/W	832.1 lm/m	F	95.9 lm/W	690.5 lm/m	F

Grade DN (1st Tier)

Grade DN (1st Tier) — 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	107.3 lm/W	1030.2 lm/m	F	90.2 lm/W	865.5 lm/m	G	—	—	—
2300 K	117 lm/W	1123.3 lm/m	F	100.6 lm/W	965.5 lm/m	F	81.5 lm/W	782.4 lm/m	G
2700 K	126.1 lm/W	1210.5 lm/m	E	108.8 lm/W	1044.9 lm/m	F	88.2 lm/W	846.9 lm/m	G
3000 K	132.4 lm/W	1271.3 lm/m	E	115 lm/W	1103.7 lm/m	F	93.5 lm/W	897.8 lm/m	F
3500 K	134.5 lm/W	1290.9 lm/m	E	117.5 lm/W	1128.2 lm/m	F	96.7 lm/W	928.2 lm/m	F
4000 K	136.9 lm/W	1314.4 lm/m	E	118.1 lm/W	1134.1 lm/m	F	97.5 lm/W	936.1 lm/m	F
5000 K	136.7 lm/W	1312.4 lm/m	E	118.9 lm/W	1141.9 lm/m	E	98.1 lm/W	941.8 lm/m	F
6500 K	131.1 lm/W	1258.5 lm/m	E	113.6 lm/W	1090.9 lm/m	F	94.3 lm/W	905.3 lm/m	F

Grade DN (1st Tier)

Grade DN (1st Tier) — measured at 12 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	105.5 lm/W	1266.2 lm/m	F	88.6 lm/W	1063.8 lm/m	G	—	—	—
2300 K	115.1 lm/W	1380.6 lm/m	F	98.9 lm/W	1186.7 lm/m	F	80.1 lm/W	961.2 lm/m	G
2700 K	124 lm/W	1487.8 lm/m	E	107 lm/W	1284.2 lm/m	F	86.7 lm/W	1040.9 lm/m	G
3000 K	130.2 lm/W	1562.5 lm/m	E	113 lm/W	1356.5 lm/m	F	92 lm/W	1103.5 lm/m	F
3500 K	132.2 lm/W	1586.6 lm/m	E	115.6 lm/W	1386.6 lm/m	F	95.1 lm/W	1140.9 lm/m	F
4000 K	134.6 lm/W	1615.5 lm/m	E	116.2 lm/W	1393.9 lm/m	F	95.9 lm/W	1150.5 lm/m	F
5000 K	134.4 lm/W	1613.1 lm/m	E	117 lm/W	1403.5 lm/m	F	96.5 lm/W	1158 lm/m	F
6500 K	128.9 lm/W	1546.9 lm/m	E	111.7 lm/W	1340.9 lm/m	F	92.7 lm/W	1112.4 lm/m	F

Grade KE (3rd Tier)

Grade KE (3rd Tier) — measured at 7.2 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	76.1 lm/W	548 lm/m	G	60.5 lm/W	435.9 lm/m	G	—	—	—
2300 K	84.8 lm/W	610.8 lm/m	G	67.5 lm/W	486 lm/m	G	54.7 lm/W	393.8 lm/m	G
2700 K	91.5 lm/W	658.7 lm/m	F	73.2 lm/W	527.1 lm/m	G	59.4 lm/W	427.6 lm/m	G
3000 K	96 lm/W	691.6 lm/m	F	77.5 lm/W	557.7 lm/m	G	63 lm/W	453.8 lm/m	G
3500 K	97.5 lm/W	702 lm/m	F	79 lm/W	568.9 lm/m	G	65 lm/W	468 lm/m	G
4000 K	100.3 lm/W	722.2 lm/m	F	80.7 lm/W	580.9 lm/m	G	66.6 lm/W	479.2 lm/m	G
5000 K	100.2 lm/W	721.5 lm/m	F	80.7 lm/W	580.9 lm/m	G	66.6 lm/W	479.5 lm/m	G
6500 K	96 lm/W	691.6 lm/m	F	77.5 lm/W	557.7 lm/m	G	64.3 lm/W	463 lm/m	G

Grade KE (3rd Tier)

Grade KE (3rd Tier) — 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	74.8 lm/W	718.5 lm/m	G	59.5 lm/W	571.4 lm/m	G	—	—	—
2300 K	83.4 lm/W	800.8 lm/m	G	66.4 lm/W	637.1 lm/m	G	53.8 lm/W	516.5 lm/m	G
2700 K	90 lm/W	863.5 lm/m	F	72 lm/W	691 lm/m	G	58.4 lm/W	560.7 lm/m	G
3000 K	94.4 lm/W	906.7 lm/m	F	76.2 lm/W	731.2 lm/m	G	62 lm/W	595 lm/m	G
3500 K	95.9 lm/W	920.4 lm/m	F	77.7 lm/W	745.9 lm/m	G	63.9 lm/W	613.6 lm/m	G
4000 K	98.6 lm/W	946.8 lm/m	F	79.3 lm/W	761.6 lm/m	G	65.4 lm/W	628.3 lm/m	G
5000 K	98.5 lm/W	945.9 lm/m	F	79.3 lm/W	761.6 lm/m	G	65.4 lm/W	627.8 lm/m	G
6500 K	94.4 lm/W	906.7 lm/m	F	76.2 lm/W	731.2 lm/m	G	63.2 lm/W	606.7 lm/m	G

Grade KE (3rd Tier)

Grade KE (3rd Tier) — measured at 12 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	73.6 lm/W	883.1 lm/m	G	58.5 lm/W	702.4 lm/m	G	—	—	—
2300 K	82 lm/W	984.3 lm/m	G	65.3 lm/W	783.1 lm/m	G	52.9 lm/W	634.8 lm/m	G
2700 K	88.4 lm/W	1061.4 lm/m	F	70.8 lm/W	849.3 lm/m	G	57.4 lm/W	689.1 lm/m	G
3000 K	92.9 lm/W	1114.4 lm/m	F	74.9 lm/W	898.7 lm/m	G	60.9 lm/W	731.3 lm/m	G
3500 K	94.3 lm/W	1131.2 lm/m	F	76.4 lm/W	916.8 lm/m	G	62.8 lm/W	754.2 lm/m	G
4000 K	97 lm/W	1163.8 lm/m	F	78 lm/W	936.1 lm/m	G	64.4 lm/W	772.2 lm/m	G
5000 K	96.9 lm/W	1162.6 lm/m	F	78 lm/W	936.1 lm/m	G	64.4 lm/W	772.8 lm/m	G
6500 K	92.9 lm/W	1114.4 lm/m	F	74.9 lm/W	898.7 lm/m	G	62.2 lm/W	746.4 lm/m	G

Related models in this series

See every model in SMD LED Strip Series or narrow to Ultra Narrow. 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 6644?

6644: 2835, 120 LEDs/m, 24V, 5 mm PCB, 3oz copper FPCB, cuttable 6LEDs/50mm. Full photometric data, wiring diagrams and test reports are available in the downloads section of this page.

How long can a single run of this ultra narrow LED strip be?

Maximum single run for this model is 5M. Feeding from both ends or using a mid-point tap halves the effective distance per segment, so a ultra narrow LED strip can cover twice that length on one circuit when wired accordingly.

Can DENO customise this ultra narrow LED strip for a project?

Yes. DENO manufactures the Ultra-Narrow 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 narrow can a thin LED strip be?

DENO builds down to a 3 mm wide FPCB. A 3 mm LED strip fits aluminium channels, cabinet reveals, shelf edges and slim architectural slots where an 8 or 10 mm board cannot be hidden, while still carrying 2 oz copper for stable long runs.

Which LED driver and run length suit #6644?

#6644 | 2835 Ultra-Narrow LED Strip Light is a constant-voltage 24V product, so pair it with a CE or UL listed 24V constant-voltage LED driver rated about 20% above the connected load. Maximum single run is 5M. 5m Single/10m Dual Input power. Feeding from both ends or mid-feeding halves the copper distance and roughly quarters the voltage drop.

Ultra Narrow LED Strip — Buyer Questions

How narrow can a 3mm LED strip be?

DENO's ultra-narrow boards start at 3 mm PCB width, with 4 mm, 5 mm, 6 mm and 8 mm as standard steps. A 3 mm strip fits inside slim aluminium reveals, glass-edge details and joinery grooves that will not accept the usual 8–10 mm tape.

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Is a narrow LED strip less bright?

Not necessarily, but it has less copper for heat spreading, so output per metre is limited by thermal design rather than by the LEDs. DENO specifies 2 oz copper on 3–5 mm boards and recommends an aluminium profile; typical usable output is 6–14 W/m depending on width and density.

Series ultra narrow LED strip series
Guide copper weight and heat spreading on narrow FPCB
Guide check output and voltage drop for a narrow board
Product 13921-N 2 oz copper narrow LED strip

Can a 3mm LED strip still be high density?

Yes. Micro packages such as 1808, 2110 and 2216 allow 240–480 LEDs/m on a 3–5 mm board, so a narrow reveal can still be dot-free behind a shallow diffuser. Above that density the width usually has to grow to 8 mm for thermal reasons.

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How tightly does a narrow LED strip bend?

A 3–5 mm board bends to a much tighter radius than standard tape and can be curved along its length without stressing the copper. For horizontal curves and corners, an S-bend layout removes the need to cut and solder at each turn.

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What is the cut unit on an ultra-narrow LED strip?

Cut intervals typically run from 12.5 mm to 50 mm depending on voltage and density, and micro-cut versions shorten this further for exact millwork lengths. Ask for the cut unit in the quote — it decides how closely the finished run matches the drawing.

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Can I order a custom width LED strip?

Yes — PCB width from 3 mm, LED density, CCT and CRI, copper weight, cut unit, IP class and connector are all configurable. DENO is a manufacturer, so a non-standard width is tooled from an existing FPCB stack-up instead of being ruled out.

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