DENO LED Lighting

2835 CCT High Density LED Strip Light (#6804)

Model: 6804

6804 high density led strip — 24V, cuttable every 55.6mm, 12mm FPCB width, 2835 LEDs, 252 LEDs/m

Overview

2835 CCT High Density LED Strip Light | 12mm | 24V | 252LEDs | 55.5mm/cut | #6804 is part of the DENO High Density LED Strips series, engineered around ultra high density LED strip. Key specifications: 2835, 252 LEDs/m, 24V, 12mm PCB, 3oz copper FPCB, cuttable 14LEDs/55.55mm. 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

#6804 | 2835 CCT High Density 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.

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

Specifications

LED QTY252 LEDs/m
PART NODL-F28A126V24-6804-*
SMD TYPE2835
CUTTABLE UNIT14LEDs/55.55mm
DIMMABLEYes
LED PITCH3.96mm
PCB WIDTH12mm
BEAM ANGLE120°
LENGTH MAX5m
COPPER FOIL3oz
POWER RANGE12~28.8W
CIRCUIT TYPEC.V.
INPUT VOLTAGE24V

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.
  • Hotel & residential tunable-white scenes — Hotel rooms, residential living areas and meeting spaces where warm evening light and neutral daytime light are both required from one fixture.

Request a quotation for #6804

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: 225.1 lm/W at 6500K, Ra 80, ErP energy class B (Grade DN (1st Tier) · CCT 3-Anchor · 12W/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 DN (1st Tier) · CCT 3-Anchor · 12W/m

Grade DN (1st Tier) · CCT 3-Anchor · 12W/m — 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K202.8 lm/W1216.7 lm/mB165 lm/W990.1 lm/mD128.7 lm/W772.1 lm/mE
4000 K204.8 lm/W2457.1 lm/mB166.7 lm/W2000.1 lm/mD130 lm/W1560.1 lm/mE
6500 K225.1 lm/W1350.8 lm/mB183.3 lm/W1099.8 lm/mC143 lm/W858 lm/mE

Grade DN (1st Tier) · CCT 3-Anchor · 18W/m

Grade DN (1st Tier) · CCT 3-Anchor · 18W/m — measured at 18 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K194.4 lm/W1749.7 lm/mC158.2 lm/W1423.9 lm/mD123.4 lm/W1110.4 lm/mE
4000 K196.3 lm/W3533.6 lm/mC159.8 lm/W2876.3 lm/mD124.6 lm/W2243.6 lm/mE
6500 K215.8 lm/W1942.5 lm/mB175.7 lm/W1581.6 lm/mC137.1 lm/W1233.9 lm/mE

Grade DN (1st Tier) · CCT 3-Anchor · 22W/m

Grade DN (1st Tier) · CCT 3-Anchor · 22W/m — measured at 22 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K189 lm/W2079.3 lm/mC153.8 lm/W1692.1 lm/mD120 lm/W1319.6 lm/mE
4000 K190.9 lm/W4199.2 lm/mC155.4 lm/W3418 lm/mD121.2 lm/W2666.2 lm/mE
6500 K209.9 lm/W2308.4 lm/mB170.9 lm/W1879.5 lm/mD133.3 lm/W1466.3 lm/mE

Grade DN (1st Tier) · CCT 3-Anchor · 28.8W/m

Grade DN (1st Tier) · CCT 3-Anchor · 28.8W/m — measured at 28.8 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K180.2 lm/W2595 lm/mC146.7 lm/W2111.8 lm/mD114.4 lm/W1646.9 lm/mF
4000 K182 lm/W5240.7 lm/mC148.1 lm/W4265.8 lm/mD115.5 lm/W3327.5 lm/mF
6500 K200.1 lm/W2881 lm/mB162.9 lm/W2345.6 lm/mD127.1 lm/W1830 lm/mE

Grade DL (2nd Tier) · CCT 3-Anchor · 12W/m

Grade DL (2nd Tier) · CCT 3-Anchor · 12W/m — 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K178.8 lm/W1072.7 lm/mC145.4 lm/W872.5 lm/mD113.4 lm/W680.3 lm/mE
4000 K180.7 lm/W2167.8 lm/mC146.9 lm/W1762.3 lm/mD114.5 lm/W1373.9 lm/mE
6500 K198.5 lm/W1190.9 lm/mB161.5 lm/W969 lm/mC125.9 lm/W755.6 lm/mE

Grade DL (2nd Tier) · CCT 3-Anchor · 18W/m

Grade DL (2nd Tier) · CCT 3-Anchor · 18W/m — measured at 18 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K171.4 lm/W1542.6 lm/mC139.4 lm/W1254.8 lm/mD108.7 lm/W978.4 lm/mF
4000 K173.2 lm/W3117.5 lm/mC140.8 lm/W2534.3 lm/mD109.8 lm/W1975.8 lm/mF
6500 K190.3 lm/W1712.6 lm/mB154.8 lm/W1393.5 lm/mD120.7 lm/W1086.7 lm/mE

Grade DL (2nd Tier) · CCT 3-Anchor · 22W/m

Grade DL (2nd Tier) · CCT 3-Anchor · 22W/m — measured at 22 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K166.7 lm/W1833.2 lm/mC135.6 lm/W1491.2 lm/mD105.7 lm/W1162.7 lm/mF
4000 K168.4 lm/W3704.7 lm/mC136.9 lm/W3011.7 lm/mD106.7 lm/W2347.9 lm/mF
6500 K185 lm/W2035.2 lm/mB150.5 lm/W1656 lm/mD117.4 lm/W1291.4 lm/mE

Grade DL (2nd Tier) · CCT 3-Anchor · 25.68W/m

Grade DL (2nd Tier) · CCT 3-Anchor · 25.68W/m — measured at 25.7 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K162.4 lm/W2078.7 lm/mC132.1 lm/W1690.3 lm/mE103 lm/W1318.4 lm/mF
4000 K164.1 lm/W4214.1 lm/mC133.4 lm/W3425.5 lm/mE104 lm/W2670.7 lm/mF
6500 K180.3 lm/W2307.8 lm/mC146.7 lm/W1878.1 lm/mD114.4 lm/W1464.3 lm/mE

Grade DL (2nd Tier) · CCT 3-Anchor · 28.8W/m

Grade DL (2nd Tier) · CCT 3-Anchor · 28.8W/m — measured at 28.8 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K158.9 lm/W2287.9 lm/mD129.2 lm/W1861 lm/mE100.8 lm/W1451 lm/mF
4000 K160.5 lm/W4623.6 lm/mC130.5 lm/W3758.6 lm/mE101.7 lm/W2930.3 lm/mF
6500 K176.4 lm/W2540 lm/mC143.5 lm/W2066.7 lm/mD111.9 lm/W1611.6 lm/mE

Grade KE (3rd Tier) · CCT 3-Anchor · 12W/m

Grade KE (3rd Tier) · CCT 3-Anchor · 12W/m — 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K152.2 lm/W913.5 lm/mD123.6 lm/W741.8 lm/mE96.4 lm/W578.6 lm/mF
4000 K153.8 lm/W1845.5 lm/mD124.8 lm/W1498.1 lm/mE97.3 lm/W1167.8 lm/mF
6500 K169 lm/W1013.9 lm/mC137.3 lm/W823.7 lm/mD107.1 lm/W642.7 lm/mF

Grade KE (3rd Tier) · CCT 3-Anchor · 18W/m

Grade KE (3rd Tier) · CCT 3-Anchor · 18W/m — measured at 18 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K146 lm/W1313.7 lm/mD118.5 lm/W1066.7 lm/mE92.5 lm/W832.1 lm/mF
4000 K147.4 lm/W2654 lm/mD119.7 lm/W2154.3 lm/mE93.3 lm/W1679.4 lm/mF
6500 K162 lm/W1458.1 lm/mC131.6 lm/W1184.5 lm/mE102.7 lm/W924.2 lm/mF

Grade KE (3rd Tier) · CCT 3-Anchor · 22W/m

Grade KE (3rd Tier) · CCT 3-Anchor · 22W/m — measured at 22 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K141.9 lm/W1561.1 lm/mD115.2 lm/W1267.6 lm/mE89.9 lm/W988.8 lm/mF
4000 K143.4 lm/W3153.9 lm/mD116.4 lm/W2560.1 lm/mE90.7 lm/W1995.7 lm/mF
6500 K157.5 lm/W1732.7 lm/mD128 lm/W1407.6 lm/mE99.8 lm/W1098.3 lm/mF

Grade KE (3rd Tier) · CCT 3-Anchor · 25.68W/m

Grade KE (3rd Tier) · CCT 3-Anchor · 25.68W/m — measured at 25.7 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K138.3 lm/W1770.2 lm/mD112.3 lm/W1436.9 lm/mE87.6 lm/W1121.3 lm/mF
4000 K139.7 lm/W3587.5 lm/mD113.4 lm/W2911.9 lm/mE88.4 lm/W2270.1 lm/mF
6500 K153.5 lm/W1964.8 lm/mD124.7 lm/W1596.5 lm/mE97.3 lm/W1245.4 lm/mF

Grade KE (3rd Tier) · CCT 3-Anchor · 28.8W/m

Grade KE (3rd Tier) · CCT 3-Anchor · 28.8W/m — measured at 28.8 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 ClassRa 90 — Luminous Efficacy (lm/W)Ra 90 — Luminous Flux (lm/m)Ra 90 — ErP Energy ClassFull Spectrum (Ra 95+) — Luminous Efficacy (lm/W)Full Spectrum (Ra 95+) — Luminous Flux (lm/m)Full Spectrum (Ra 95+) — ErP Energy Class
2700 K135.3 lm/W1948.3 lm/mD109.9 lm/W1582.1 lm/mF85.7 lm/W1234.1 lm/mF
4000 K136.7 lm/W3936.1 lm/mD110.9 lm/W3195.1 lm/mE86.5 lm/W2490.7 lm/mF
6500 K150.2 lm/W2162.5 lm/mD122 lm/W1756.8 lm/mE95.2 lm/W1370.7 lm/mF

Related models in this series

See every model in SMD LED Strip Series or narrow to Cct. 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 6804?

6804: 2835, 252 LEDs/m, 24V, 12mm PCB, 3oz copper FPCB, cuttable 14LEDs/55.55mm. 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 high density 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 high density LED strip can cover twice that length on one circuit when wired accordingly.

Can DENO customise this ultra high density LED strip for a project?

Yes. DENO manufactures the High Density LED 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 many LEDs per metre does a dotless LED strip need?

Visible dots depend on LED pitch, diffuser distance and transmittance. Above roughly 480 LEDs/m most diffusers give a continuous line at 10 mm depth, and the 700 LEDs/m high density LED strip stays dot free even behind a shallow, highly transmissive lens.

How does a tunable white LED strip mix colour temperature?

Two LED channels, typically 2700K and 6500K, sit on the same FPCB and are dimmed against each other. Mixing the channels sweeps the white point along the black body line while total output stays even, which is how a CCT LED strip supports circadian and human centric lighting schedules.

High Density LED Strip — Buyer Questions

Is a 24V high density LED strip better than 12V?

For dense boards, yes in most cases. A 24V high density LED strip draws half the current of a 12V board at the same wattage, so voltage drop is far lower and single runs of 5–10 m stay even in brightness. DENO supplies 12V, 24V, 48V and mains-voltage versions of the same high-density layout; 12V is normally reserved for short cabinet runs or low-voltage furniture requirements.

Do you make a 5V high density LED strip?

Yes. 5V dense LED tape is built for USB-powered displays, shelving and addressable pixel projects where the controller is 5V-native. Because 5V boards lose voltage quickly, DENO limits standard runs to 1–2 m per feed, uses 2 oz or 35+70 μm copper, and adds per-segment constant-current ICs so the far end does not dim.

Can a high density RGB LED strip stay dot-free?

It can, but the pitch has to be tighter than a white board because each RGB package mixes three separate dies. DENO's high density RGB and RGBW builds place emitters at 2.1 mm–4.2 mm pitch so colour mixing completes within a few millimetres of the diffuser, which removes both the dot pattern and the rainbow fringing seen on standard 60 LEDs/m RGB tape.

What is a high density addressable LED strip used for?

High density addressable LED strip (pixel tape) is used for signage, media facades, stair effects and studio lighting where each LED or short segment must be controlled individually. DENO offers addressable builds with up to 700 pixels per metre in SPI protocols such as WS2812B, WS2815 and SK6812, with breakout points every cut unit for reliable data injection on long runs.

What makes the best high density LED strip lights?

Density alone is not enough. The best high density LED strip lights combine tight LED pitch with a 3-SDCM binning window, Ra 90+ (Ra 95+ for full-spectrum), 2 oz or heavier copper for thermal spreading, flicker-free constant-current drive and an FPCB rated for repeated bending. DENO ships photometric data, LM-80 chip data and a full test report with every OEM order so specifiers can verify these claims instead of trusting a datasheet number.

Can I order a custom high density LED strip?

Yes — LED count, pitch, CCT, CRI, PCB width from 3 mm, copper weight, cut unit and IP rating are all configurable on a custom high density LED strip. DENO is a manufacturer, not a reseller, so a non-standard density or a mixed-CCT dense board can be tooled from an existing FPCB stack-up without a new production line.

Is high density LED tape the same as a high density LED strip?

They are the same product under two names: “high density led tape” is the common UK/EU term for what North America calls a high density LED strip. DENO ships the identical dense FPCB boards to both markets — 240 to 700 LEDs/m, 3 mm to 12 mm widths, CE/UL/RoHS documentation — so the tape you specify in a UK cove detail is the same board as the strip specified in a US one.

Which dense LED tape suits under-cabinet lighting?

For under-cabinet work choose a dense board at 240–420 LEDs/m in a 5 mm to 8 mm width, 12V or 24V, with a short cut unit so the board matches each cabinet run exactly. At that density a 10 mm deep aluminium channel with a frosted diffuser already reads dot-free at normal worktop viewing distance.

What power supply do I need for a dense LED strip run?

Size the driver from the board wattage: multiply the W/m figure on the datasheet by the run length, then add 20–30 % headroom, so a 20 W/m board over 5 m needs a 100 W load on a 120–130 W constant-voltage driver. Match the driver voltage exactly (24V board, 24V driver), keep it constant-voltage rather than constant-current unless the board carries its own CC ICs, and check that the dimming protocol — TRIAC, 0–10V, DALI or PWM — is supported on both sides before ordering.

Does more LEDs per metre mean a brighter strip?

Not on its own. Brightness is lumens per metre, which is drive current times die count times efficacy — doubling the LED count while halving the current per die gives the same output with a smoother line, not twice the light. Read lm/m and W/m together: DENO dense boards run 8–24 W/m and 700–2600 lm/m, so pick the density for dot-free appearance and the wattage for the light level you actually need.

Can dense LED tape run on 36V or 48V supplies?

Yes. 36V and 48V builds exist specifically for long uninterrupted runs: at 48V the same wattage draws a quarter of the current of a 12V board, so a single feed can cover 15–20 m with even brightness and far fewer injection points. They need a matching SELV driver and, in most territories, the same low-voltage installation rules as 24V; DENO supplies 36V and 48V versions of the standard dense layouts on request.