3838 RGB LED Strip Light (#3399U)
8mm · 24V · 120LEDs · 50mm/cut
Model: 3399U
Overview
3838 RGB LED Strip Light | 8mm | 24V | 120LEDs | 50mm/cut | #3399U is part of the DENO RGB SMD Strips series, engineered around RGB LED strip lights. Key specifications: 3838, 120, 24V, 8 PCB, 2oz 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
High-density 3838 RGB LED strip light integrates 120 diodes per meter on a slim 8mm PCB for vibrant architectural color-changing accents. Engineered for 24V constant voltage circuits, this dimmable tape is cuttable every 6 LEDs or 50mm to match custom linear lighting layouts. Available factory-direct for wholesale project supply, each flexible ribbon operates smoothly in ambient temperatures ranging from -25°C to 40°C.
Rgb Led Strip Lights built for rgb smd strips projects.
Specifications
| LED QTY | 120 |
|---|---|
| PART NO | DL-F3535A60V24-3399U-* |
| SMD TYPE | 3838 |
| CUTTABLE UNIT | 6LEDs/50mm |
| DIMMABLE | Yes |
| IP RATING | IP20 |
| LED PITCH | 8.3mm |
| LIFESPAN | 50000 |
| PCB WIDTH | 8 |
| WARRANTY | 5 Years |
| RUN LENGTH | 10m |
| COPPER FOIL | 2oz |
| POWER RANGE | 7.2~19.2W |
| CIRCUIT TYPE | C.V. |
| INPUT VOLTAGE | 24V |
| 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.
- Entertainment & media-facade colour scenes — Entertainment venues, media facades, gaming rooms and branded retail installs driven by DMX/SPI or standard RGB controllers.
Recommended accessories & compatible parts
- DL-1215 — 12x15mm Surface Mount LED Channel — Tall U Shape Aluminum Profile: Accepts LED strips up to 8mm wide.
- DL-1313HX-M — 13x13mm Magnetic Cabinet LED Channel — Tool-Free Corner Aluminum Profile: Accepts LED strips up to 8mm wide.
- DL-1408 HX — 14x8mm Surface Mount LED Channel — Slim Aluminum Profile for 8mm Strip: Accepts LED strips up to 8mm wide.
- DN-PSU-100 — 24V 100W Class-2 LED Driver · High Efficiency: Matches the 24V DC input of this strip; size the driver with at least 20% headroom over total load.
- DN-PSU-150 — 24V 150W Class-2 LED Driver · Premium: Matches the 24V DC input of this strip; size the driver with at least 20% headroom over total load.
- DN-PSU-60 — 24V 60W Class-2 LED Driver · Constant Voltage: Matches the 24V DC input of this strip; size the driver with at least 20% headroom over total load.
Request a quotation for #3399U
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
High-Power LED Strip: Heat Dissipation & Aluminum Channel Guide
At up to 19.2W/m, 3399U 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 8mm wide, so it needs at least 10mm 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
- 14x8mm Magnetic LED Channel · fits ≤8mm strip
- 13x13mm Magnetic Cabinet LED Channel · fits ≤8mm strip
- 12x15mm Surface Mount LED Channel · fits ≤8mm strip
- Slim Recessed Aluminum Profile · 8mm PCB · fits ≤8mm strip
- 14.2x9.8mm Recessed LED Channel with Flange · fits ≤8mm strip
- 14x8mm Surface Mount LED Channel · fits ≤8mm 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 8mm wide, so it needs a channel with at least 10mm inner width (8mm + 2mm clearance). Every profile below meets that.
Related models in this series
See every model in SMD LED Strip Series or narrow to 3838. 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 3399U?
3399U: 3838, 120, 24V, 8 PCB, 2oz copper FPCB, cuttable 6LEDs/50mm. 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 RGB LED strip lights offer?
This model is supplied as a RGB LED strip lights 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 RGB LED strip lights for a project?
Yes. DENO manufactures the RGB 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.
Should you choose RGB or RGBW LED strip lights?
RGB LED strip lights mix colour but produce a weak, tinted white. If the installation also needs usable white light for everyday use, choose RGBW or RGBCCT, which adds a dedicated white chip. Pure RGB is best where the strip is only ever a colour accent.
Which LED driver and run length suit #3399U?
3838 RGB LED Strip Light | 8mm | 24V | 120LEDs | 50mm/cut | #3399U 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 10m. 10m Single/20m Dual Input power. Feeding from both ends or mid-feeding halves the copper distance and roughly quarters the voltage 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.
- RGB LED strip lights series — RGB LED Strip Lights — Buyer Questions
- LED strip engineering selection handbook