2835 2-in-1 CCT Tunable LED Strip Light (#19937)
10mm · 12V · 120LEDs · 25mm/cut
Model: 19937
Overview
2835 2-in-1 CCT Tunable LED Strip Light | 10mm | 12V | 120LEDs | 25mm/cut | #19937 is part of the DENO CCT SMD Strips series, engineered around tunable white LED strip. Key specifications: 2835, 120, DC 12V, 10mm PCB, 2oz copper FPCB, cuttable 3LEDs/25mm. 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 120 LEDs per meter using 2835 2-in-1 chips, this CCT tunable LED strip light delivers smooth color temperature transitions on a 10mm PCB. The 12V constant voltage circuit operates with a 2oz copper foil design and allows precise field cutting every 25mm for architectural lighting installations. Featuring 3-Step MacAdam binning for batch consistency, this dimmable strip integrates reliably with standard PWM dimmers and smart control systems. Ideal for aluminum profile integration and cabinet lighting, DENO provides factory-direct wholesale project supply with standard run lengths up to 5 meters.
Tunable White Led Strip built for cct smd strips projects.
Specifications
| CRI | Ra≥80 |
|---|---|
| POWER (W/M) | 19.2W/m |
| LED QTY | 120 |
| PART NO | DL-F28A60V12-19937 |
| SMD TYPE | 2835 |
| CUTTABLE UNIT | 3LEDs/25mm |
| DIMMABLE | Yes |
| IP RATING | IP20/IP54/IP65/IP66/IP67/IP68 |
| LED PITCH | 8.333mm |
| PCB WIDTH | 10mm |
| RUN LENGTH | 5m |
| COPPER FOIL | 2oz |
| CIRCUIT TYPE | C.V. |
| INPUT VOLTAGE | DC 12V |
| LUMINOUS FLUX | 2254 lm/m @4000K |
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.
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.
- V2 — 12-24VDC 2-Channel * 5A Color Temperature Controller | V2: Matched by input voltage range and colour channels.
Request a quotation for #19937
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
Photometric Performance — CCT × CRI Efficacy Matrix
Peak measured luminous efficacy: 133.1 lm/W at 6500K, Ra 80, ErP energy class E (Grade DL (2nd Tier) · CCT 3-Anchor · 14.4W/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) · CCT 3-Anchor · 14.4W/m
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2700 K | 120 lm/W | 863.9 lm/m | E | — | — | — | — | — | — |
| 4000 K | 121.2 lm/W | 1745.7 lm/m | E | — | — | — | — | — | — |
| 6500 K | 133.1 lm/W | 958.4 lm/m | E | — | — | — | — | — | — |
Grade DL (2nd Tier) · CCT 3-Anchor · 19.2W/m
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2700 K | 116 lm/W | 1113.7 lm/m | E | — | — | — | — | — | — |
| 4000 K | 117.2 lm/W | 2250.4 lm/m | E | — | — | — | — | — | — |
| 6500 K | 128.7 lm/W | 1235.5 lm/m | E | — | — | — | — | — | — |
Grade DL (2nd Tier) · CCT 3-Anchor · 24W/m
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2700 K | 112.2 lm/W | 1346 lm/m | E | — | — | — | — | — | — |
| 4000 K | 113.3 lm/W | 2719.8 lm/m | E | — | — | — | — | — | — |
| 6500 K | 124.4 lm/W | 1493.2 lm/m | E | — | — | — | — | — | — |
Grade DL (2nd Tier) · CCT 3-Anchor · 28.8W/m
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2700 K | 108.4 lm/W | 1561.6 lm/m | F | — | — | — | — | — | — |
| 4000 K | 109.6 lm/W | 3155.5 lm/m | F | — | — | — | — | — | — |
| 6500 K | 120.3 lm/W | 1732.4 lm/m | E | — | — | — | — | — | — |
High-Power LED Strip: Heat Dissipation & Aluminum Channel Guide
At up to 28.8W/m, 19937 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
- 22x12mm Recessed LED Channel with Flange · fits ≤10mm strip
- 20x15mm Wide Surface Mount LED Channel · fits ≤10mm strip
- 17x15mm Surface Mount LED Channel · fits ≤10mm strip
- 15x15mm Magnetic LED Channel · fits ≤10mm strip
- 19.1x8mm Surface Mount LED Channel · fits ≤10mm strip
- 15x15mm 48V Surface Mount LED Channel · fits ≤10mm 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
- 2835 CCT High Density LED Strip Light (#6804)
- 3838 CCT LED Strips Two chip in one LED (#11668)
- 3838 CCT LED Strips Two chip in one LED (#7727)
- 3838 CCT LED Strips Two chip in one LED (#8180)
- 2835 CCT Tunable LED Strip Light (#17985)
- 2835 CCT Tunable LED Strip Light (#18084)
- 2835 Two-in-one CCT Dual Loop LED Strip Light (#19315)
- 2835 CCT Tunable LED Strip Light (#6803)
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 19937?
19937: 2835, 120, DC 12V, 10mm PCB, 2oz copper FPCB, cuttable 3LEDs/25mm. Full photometric data, wiring diagrams and test reports are available in the downloads section of this page.
What colour temperatures and CRI options does this tunable white LED strip offer?
This model is supplied as a tunable white LED strip with high CRI options and the CCT range listed in the datasheet. DENO bins every batch for colour consistency, and custom CCT or spectrum combinations can be produced for project quantities.
Can DENO customise this tunable white LED strip for a project?
Yes. DENO manufactures the CCT 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 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.
Which LED driver and run length suit #19937?
2835 2-in-1 CCT Tunable LED Strip Light | 10mm | 12V | 120LEDs | 25mm/cut | #19937 is a constant-voltage DC 12V product, so pair it with a CE or UL listed DC 12V 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.