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.

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.

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.

How long can a long LED strip run be on a single power feed?

A standard 24V constant-voltage tape is limited to about 5 m before the far end visibly dims. DENO's long-run boards combine 2 oz to 3 oz copper, 24V or 48V input and per-segment constant-current ICs, which takes a single feed to 20 m, and up to 50 m on 48V builds, with no measurable fall-off between the first and last metre.

What are the longest LED light strips DENO manufactures?

Standard reels ship at 5 m, 10 m, 15 m, 20 m and 30 m, and OEM orders are produced as one continuous 50 m board with no mid-reel solder joint. Roll-to-roll plating is what makes that possible: the copper is deposited continuously, so length is not capped by panel size the way it is on die-cut FPCB.

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.

2835 Long Run LED Strip Light (#3960)

10mm · 48V · 130LEDs · 100mm/cut

Model: 3960

3960 long led strip — 48V, cuttable every 100mm, 10mm FPCB width, 2835 LEDs, 130 LEDs/m, IP20

Overview

10mm | 48V | 130LEDs | 100mm/cut | #3960 | 2835 LED Strip Light is part of the DENO Ultra-Long SMD Strips series, engineered around ultra long run LED strip. Key specifications: 2835, 130LEDs/m, DC 48V, 10mm PCB, 3oz copper FPCB, cuttable 13LEDs/100mm. 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 a constant-current circuit and 48V DC input, this 2835 LED strip light supports single-feed continuous runs up to 15 meters without significant voltage drop. Built on a durable 10mm wide 3oz copper PCB, the board ensures reliable thermal management and stable performance across ambient temperatures from -25°C to 40°C. Featuring 130 LEDs per meter with 100mm cut points and a 120-degree beam angle, this dimmable strip provides versatile illumination for architectural lighting. We provide factory-direct wholesale project supply with OEM custom lengths, color temperatures, and tailored ingress protection to meet precise design requirements.

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

Specifications

LED QTY	130LEDs/m
PART NO	DL-F28A65V48-3960-*
SMD TYPE	2835
CUTTABLE UNIT	13LEDs/100mm
DIMMABLE	Yes
IP RATING	IP20
LED PITCH	7.7mm
PCB WIDTH	10mm
BEAM ANGLE	120°
RUN LENGTH	15m
COPPER FOIL	3oz
ON OFF TIMES	10000（test times）
POWER RANGE	2.4~24W
CIRCUIT TYPE	C.C.
INPUT VOLTAGE	DC 48V
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 — Long single-feed runs on 48V cover corridors, warehouse aisles and facade lines with fewer injection points and fewer power supplies.

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.

Request a quotation for #3960

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: 142.5 lm/W at 4000K, Ra 80, ErP energy class E (Grade DN (1st Tier) · 2.4W/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) · 2.4W/m

Grade DL (2nd Tier) · 2.4W/m — measured at 2.4 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	99.7 lm/W	239.4 lm/m	F	79.7 lm/W	191.2 lm/m	G	—	—	—
2300 K	110.9 lm/W	266.2 lm/m	E	88.7 lm/W	212.8 lm/m	F	71.8 lm/W	172.3 lm/m	G
2700 K	116.5 lm/W	279.6 lm/m	E	96 lm/W	230.4 lm/m	F	77.8 lm/W	186.7 lm/m	G
3000 K	124.9 lm/W	299.7 lm/m	E	101 lm/W	242.4 lm/m	F	82.2 lm/W	197.2 lm/m	G
3500 K	126.8 lm/W	304.4 lm/m	E	102.8 lm/W	246.8 lm/m	F	84.6 lm/W	203.1 lm/m	G
4000 K	130.9 lm/W	314.1 lm/m	E	105.3 lm/W	252.8 lm/m	F	86.9 lm/W	208.6 lm/m	F
5000 K	130.7 lm/W	313.6 lm/m	E	105.2 lm/W	252.5 lm/m	F	86.8 lm/W	208.3 lm/m	F
6500 K	119.4 lm/W	286.6 lm/m	E	101 lm/W	242.4 lm/m	F	83.8 lm/W	201.1 lm/m	G

Grade DL (2nd Tier) · 4.8W/m

Grade DL (2nd Tier) · 4.8W/m — measured at 4.8 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	98.1 lm/W	470.7 lm/m	F	78.3 lm/W	376 lm/m	G	—	—	—
2300 K	109.1 lm/W	523.5 lm/m	F	87.2 lm/W	418.5 lm/m	F	70.6 lm/W	338.9 lm/m	G
2700 K	114.6 lm/W	549.9 lm/m	E	94.4 lm/W	453.2 lm/m	F	76.5 lm/W	367.2 lm/m	G
3000 K	122.8 lm/W	589.4 lm/m	E	99.3 lm/W	476.6 lm/m	F	80.8 lm/W	387.7 lm/m	G
3500 K	124.7 lm/W	598.7 lm/m	E	101.1 lm/W	485.4 lm/m	F	83.2 lm/W	399.5 lm/m	G
4000 K	128.7 lm/W	617.7 lm/m	E	103.6 lm/W	497.1 lm/m	F	85.5 lm/W	410.2 lm/m	F
5000 K	128.5 lm/W	616.8 lm/m	E	103.5 lm/W	496.6 lm/m	F	85.4 lm/W	409.9 lm/m	F
6500 K	117.4 lm/W	563.5 lm/m	E	99.3 lm/W	476.6 lm/m	F	82.4 lm/W	395.5 lm/m	G

Grade DL (2nd Tier) · 7.2W/m

Grade DL (2nd Tier) · 7.2W/m — 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	96.4 lm/W	694.3 lm/m	F	77 lm/W	554.6 lm/m	G	—	—	—
2300 K	107.2 lm/W	772.1 lm/m	F	85.7 lm/W	617.2 lm/m	F	69.4 lm/W	499.7 lm/m	G
2700 K	112.6 lm/W	811 lm/m	E	92.8 lm/W	668.4 lm/m	F	75.2 lm/W	541.6 lm/m	G
3000 K	120.7 lm/W	869.3 lm/m	E	97.6 lm/W	703 lm/m	F	79.4 lm/W	571.9 lm/m	G
3500 K	122.6 lm/W	883 lm/m	E	99.4 lm/W	715.9 lm/m	F	81.8 lm/W	589.2 lm/m	G
4000 K	126.5 lm/W	911.1 lm/m	E	101.8 lm/W	733.2 lm/m	F	84 lm/W	605 lm/m	G
5000 K	126.3 lm/W	909.7 lm/m	E	101.7 lm/W	732.5 lm/m	F	83.9 lm/W	604.1 lm/m	G
6500 K	115.4 lm/W	831.2 lm/m	E	97.6 lm/W	703 lm/m	F	81 lm/W	583.2 lm/m	G

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	94.8 lm/W	910.3 lm/m	F	75.7 lm/W	727.1 lm/m	G	—	—	—
2300 K	105.4 lm/W	1012.3 lm/m	F	84.3 lm/W	809.2 lm/m	G	68.3 lm/W	655.7 lm/m	G
2700 K	110.8 lm/W	1063.2 lm/m	E	91.3 lm/W	876.3 lm/m	F	74 lm/W	710.1 lm/m	G
3000 K	118.7 lm/W	1139.7 lm/m	E	96 lm/W	921.6 lm/m	F	78.1 lm/W	749.7 lm/m	G
3500 K	120.6 lm/W	1157.7 lm/m	E	97.8 lm/W	938.6 lm/m	F	80.5 lm/W	772.4 lm/m	G
4000 K	124.4 lm/W	1194.5 lm/m	E	100.1 lm/W	961.3 lm/m	F	82.6 lm/W	793.2 lm/m	G
5000 K	124.2 lm/W	1192.6 lm/m	E	100 lm/W	960.3 lm/m	F	82.5 lm/W	792 lm/m	G
6500 K	113.5 lm/W	1089.7 lm/m	E	96 lm/W	921.6 lm/m	F	79.7 lm/W	765.1 lm/m	G

Grade DN (1st Tier) · 2.4W/m

Grade DN (1st Tier) · 2.4W/m — measured at 2.4 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	111.6 lm/W	267.9 lm/m	F	93.8 lm/W	225.2 lm/m	F	—	—	—
2300 K	121.7 lm/W	292 lm/m	E	104.7 lm/W	251.3 lm/m	F	84.8 lm/W	203.5 lm/m	G
2700 K	131.2 lm/W	314.9 lm/m	E	113.3 lm/W	271.9 lm/m	F	91.8 lm/W	220.3 lm/m	G
3000 K	137.7 lm/W	330.5 lm/m	E	119.6 lm/W	287.1 lm/m	E	97.3 lm/W	233.4 lm/m	F
3500 K	139.8 lm/W	335.5 lm/m	E	122.2 lm/W	293.3 lm/m	E	100.6 lm/W	241.4 lm/m	F
4000 K	142.5 lm/W	341.9 lm/m	E	122.9 lm/W	295 lm/m	E	101.4 lm/W	243.3 lm/m	F
5000 K	142.3 lm/W	341.4 lm/m	E	123.7 lm/W	297 lm/m	E	102.1 lm/W	245 lm/m	F
6500 K	136.4 lm/W	327.3 lm/m	E	118.2 lm/W	283.6 lm/m	F	98.1 lm/W	235.4 lm/m	F

Grade DN (1st Tier) · 4.8W/m

Grade DN (1st Tier) · 4.8W/m — measured at 4.8 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	109.8 lm/W	526.9 lm/m	F	92.3 lm/W	442.9 lm/m	F	—	—	—
2300 K	119.6 lm/W	574.3 lm/m	E	103 lm/W	494.2 lm/m	F	83.4 lm/W	400.3 lm/m	G
2700 K	129 lm/W	619.2 lm/m	E	111.4 lm/W	534.7 lm/m	F	90.2 lm/W	433.1 lm/m	G
3000 K	135.4 lm/W	650 lm/m	E	117.6 lm/W	564.5 lm/m	F	95.6 lm/W	459 lm/m	F
3500 K	137.4 lm/W	659.7 lm/m	E	120.1 lm/W	576.7 lm/m	E	98.9 lm/W	474.7 lm/m	F
4000 K	140.1 lm/W	672.4 lm/m	E	120.9 lm/W	580.1 lm/m	E	99.7 lm/W	478.6 lm/m	F
5000 K	139.9 lm/W	671.4 lm/m	E	121.7 lm/W	584 lm/m	E	100.4 lm/W	481.9 lm/m	F
6500 K	134.1 lm/W	643.6 lm/m	E	116.2 lm/W	557.7 lm/m	F	96.4 lm/W	462.7 lm/m	F

Grade DN (1st Tier) · 7.2W/m

Grade DN (1st Tier) · 7.2W/m — 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	107.9 lm/W	777.1 lm/m	F	90.7 lm/W	653.3 lm/m	G	—	—	—
2300 K	117.6 lm/W	847 lm/m	F	101.2 lm/W	728.9 lm/m	F	82 lm/W	590.4 lm/m	G
2700 K	126.8 lm/W	913.3 lm/m	E	109.5 lm/W	788.7 lm/m	F	88.7 lm/W	638.9 lm/m	G
3000 K	133.1 lm/W	958.6 lm/m	E	115.6 lm/W	832.6 lm/m	F	94 lm/W	677 lm/m	F
3500 K	135.1 lm/W	973 lm/m	E	118.1 lm/W	850.6 lm/m	F	97.2 lm/W	700.1 lm/m	F
4000 K	137.7 lm/W	991.8 lm/m	E	118.8 lm/W	855.6 lm/m	E	98 lm/W	705.8 lm/m	F
5000 K	137.5 lm/W	990.3 lm/m	E	119.6 lm/W	861.4 lm/m	E	98.7 lm/W	710.6 lm/m	F
6500 K	131.8 lm/W	949.3 lm/m	E	114.2 lm/W	822.5 lm/m	F	94.8 lm/W	682.6 lm/m	F

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	106.1 lm/W	1018.9 lm/m	F	89.2 lm/W	856.5 lm/m	G	—	—	—
2300 K	115.7 lm/W	1110.5 lm/m	F	99.5 lm/W	955.6 lm/m	F	80.6 lm/W	773.8 lm/m	G
2700 K	124.7 lm/W	1197.3 lm/m	E	107.7 lm/W	1034 lm/m	F	87.2 lm/W	837.6 lm/m	G
3000 K	130.9 lm/W	1256.8 lm/m	E	113.7 lm/W	1091.6 lm/m	F	92.5 lm/W	887.6 lm/m	F
3500 K	132.9 lm/W	1275.7 lm/m	E	116.2 lm/W	1115.2 lm/m	F	95.6 lm/W	917.8 lm/m	F
4000 K	135.4 lm/W	1300.3 lm/m	E	116.9 lm/W	1121.8 lm/m	F	96.4 lm/W	925.4 lm/m	F
5000 K	135.2 lm/W	1298.4 lm/m	E	117.6 lm/W	1129.3 lm/m	F	97.1 lm/W	932.2 lm/m	F
6500 K	129.6 lm/W	1244.5 lm/m	E	112.3 lm/W	1078.4 lm/m	F	93.2 lm/W	894.7 lm/m	F

Grade KE (3rd Tier) · 2.4W/m

Grade KE (3rd Tier) · 2.4W/m — measured at 2.4 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	78.8 lm/W	189.2 lm/m	G	62.8 lm/W	150.7 lm/m	G	—	—	—
2300 K	87.9 lm/W	211.1 lm/m	F	69.9 lm/W	167.9 lm/m	G	56.7 lm/W	136.1 lm/m	G
2700 K	94.8 lm/W	227.5 lm/m	F	75.9 lm/W	182.3 lm/m	G	61.6 lm/W	147.7 lm/m	G
3000 K	99.5 lm/W	238.9 lm/m	F	80.3 lm/W	192.7 lm/m	G	65.3 lm/W	156.7 lm/m	G
3500 K	101 lm/W	242.4 lm/m	F	81.8 lm/W	196.4 lm/m	G	67.4 lm/W	161.7 lm/m	G
4000 K	104 lm/W	249.6 lm/m	F	83.6 lm/W	200.6 lm/m	G	69 lm/W	165.6 lm/m	G
5000 K	103.8 lm/W	249.1 lm/m	F	83.6 lm/W	200.6 lm/m	G	69 lm/W	165.6 lm/m	G
6500 K	99.5 lm/W	238.9 lm/m	F	80.3 lm/W	192.7 lm/m	G	66.6 lm/W	159.8 lm/m	G

Grade KE (3rd Tier) · 4.8W/m

Grade KE (3rd Tier) · 4.8W/m — measured at 4.8 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	77.5 lm/W	372.1 lm/m	G	61.8 lm/W	296.4 lm/m	G	—	—	—
2300 K	86.5 lm/W	415.1 lm/m	F	68.8 lm/W	330.1 lm/m	G	55.7 lm/W	267.4 lm/m	G
2700 K	93.2 lm/W	447.3 lm/m	F	74.7 lm/W	358.4 lm/m	G	60.5 lm/W	290.6 lm/m	G
3000 K	97.9 lm/W	469.8 lm/m	F	78.9 lm/W	378.9 lm/m	G	64.2 lm/W	308.1 lm/m	G
3500 K	99.3 lm/W	476.6 lm/m	F	80.5 lm/W	386.3 lm/m	G	66.2 lm/W	317.9 lm/m	G
4000 K	102.2 lm/W	490.8 lm/m	F	82.2 lm/W	394.6 lm/m	G	67.9 lm/W	325.7 lm/m	G
5000 K	102 lm/W	489.8 lm/m	F	82.2 lm/W	394.6 lm/m	G	67.8 lm/W	325.4 lm/m	G
6500 K	97.9 lm/W	469.8 lm/m	F	78.9 lm/W	378.9 lm/m	G	65.5 lm/W	314.4 lm/m	G

Grade KE (3rd Tier) · 7.2W/m

Grade KE (3rd Tier) · 7.2W/m — 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	76.2 lm/W	548.8 lm/m	G	60.7 lm/W	437.2 lm/m	G	—	—	—
2300 K	85 lm/W	612.2 lm/m	F	67.6 lm/W	486.9 lm/m	G	54.8 lm/W	394.6 lm/m	G
2700 K	91.6 lm/W	659.7 lm/m	F	73.4 lm/W	528.7 lm/m	G	59.5 lm/W	428.5 lm/m	G
3000 K	96.2 lm/W	692.9 lm/m	F	77.6 lm/W	558.9 lm/m	G	63.1 lm/W	454.5 lm/m	G
3500 K	97.6 lm/W	703 lm/m	F	79.1 lm/W	569.7 lm/m	G	65.1 lm/W	468.9 lm/m	G
4000 K	100.5 lm/W	723.8 lm/m	F	80.8 lm/W	582 lm/m	G	66.7 lm/W	480.4 lm/m	G
5000 K	100.3 lm/W	722.4 lm/m	F	80.8 lm/W	582 lm/m	G	66.7 lm/W	480.2 lm/m	G
6500 K	96.2 lm/W	692.9 lm/m	F	77.6 lm/W	558.9 lm/m	G	64.4 lm/W	463.7 lm/m	G

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	75 lm/W	719.5 lm/m	G	59.7 lm/W	573.2 lm/m	G	—	—	—
2300 K	83.6 lm/W	802.6 lm/m	G	66.5 lm/W	638.3 lm/m	G	53.9 lm/W	517.4 lm/m	G
2700 K	90.1 lm/W	865 lm/m	F	72.2 lm/W	693.1 lm/m	G	58.5 lm/W	561.8 lm/m	G
3000 K	94.6 lm/W	908.4 lm/m	F	76.3 lm/W	732.8 lm/m	G	62.1 lm/W	595.8 lm/m	G
3500 K	96 lm/W	921.6 lm/m	F	77.8 lm/W	746.9 lm/m	G	64 lm/W	614.7 lm/m	G
4000 K	98.9 lm/W	949 lm/m	F	79.5 lm/W	763 lm/m	G	65.6 lm/W	629.8 lm/m	G
5000 K	98.7 lm/W	947.1 lm/m	F	79.5 lm/W	763 lm/m	G	65.6 lm/W	629.8 lm/m	G
6500 K	94.6 lm/W	908.4 lm/m	F	76.3 lm/W	732.8 lm/m	G	63.4 lm/W	608.6 lm/m	G

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 Ic. 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 3960?

3960: 2835, 130LEDs/m, DC 48V, 10mm PCB, 3oz copper FPCB, cuttable 13LEDs/100mm. 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 long run LED strip be?

Maximum single run for this model is 15m. Feeding from both ends or using a mid-point tap halves the effective distance per segment, so a ultra long run LED strip can cover twice that length on one circuit when wired accordingly.

Can DENO customise this ultra long run LED strip for a project?

Yes. DENO manufactures the Ultra-Long 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 long can a 48V LED strip run from a single feed?

A 48V LED strip typically doubles the run length of an equivalent 24V LED strip at the same power density, with 20 to 40 m single-end runs common at low wattages. The exact limit depends on watts per metre and copper weight, so confirm it with the DENO voltage drop calculator before specifying.

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.

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.

constant current LED strip series — Constant Current LED Strip — Buyer Questions
long LED strip lights series — Long LED Strip Lights — Buyer Questions
LED strip engineering selection handbook