회사 소식 30W 3570 Dual CCT SMD LED Chip: Six Application Scenarios Driving Car Headlight Design

One Chip, Two Colour Temperatures: Where the 30W 3570 SMD LED Headlight Chip Fits

Model in focus: 3570 Dual Colour Temperature SMD LED — 30W, 2700–20,000K, 3.5 × 7.0 × 0.8 mm

Headlight design changed the day drivers started complaining about rain. A single cold-white beam looks sharp on a dry road and turns into a wall of glare the moment the asphalt gets wet. The fix that lamp makers settled on is not a bigger reflector — it is a chip that carries two colour temperatures in one package, switching between a warm beam for wet weather and a cool beam for clear nights.

That is exactly the job the 3570 dual colour SMD LED chip was built for. At 3.5 × 7.0 × 0.8 mm it sits inside the same footprint class as mainstream automotive LED packages, but delivers 30W of drive power across a 2700K to 20,000K tuning window — enough for a low beam, a high beam or a daytime running light from a single reel.

Technical parameters

Six application scenarios this chip is specified into

1. LED car headlights. The primary use: low/high beam modules where the driver or controller selects warm or cool output on the fly.
2. Fog lamps and wet-weather auxiliary lights. The 2700K end cuts through rain and mist far better than a fixed 6,000K beam.
3. Daytime running lights and position lamps. High CCT at reduced drive gives that crisp signature look OEMs want on the front fascia.
4. Motorcycle and e-bike headlamps. A single 30W emitter replaces dual-chip layouts inside a very small housing.
5. Work lights for trucks, tractors and excavators. The −40°C to +85°C window and 50,000 h rating suit vibration-heavy, exposed installations.
6. Portable searchlights and photographic fill. Dual CCT means one light can serve both short-range warm fill and long-throw cool work.

Why dual colour beats two separate chips

Sourcing: consistency is the whole game

High-power automotive emitters are judged on two things a datasheet cannot promise: colour-point consistency between the two channels, and thermal pad flatness, because a 30W die that does not sit perfectly on its heatsink will drift in output within a few hundred hours.

Buyers therefore tend to stay with manufacturers that run their own die-attach and binning lines. Dongguan Lanjin Optoelectronics Co., Ltd. has produced LED devices since 2005 in a 2,500 m² purified, constant-temperature anti-static workshop, covering high-power SMD chips, top and side view SMD, through-hole LEDs and digital display modules, with ISO 9001:2015 certification, in-house patents and RoHS compliance across the range.

Five-point checklist before ordering

• Define both CCT targets: specify the warm and cool endpoints, not just a range.
• Ask for CCT binning data: two channels must stay inside the same visible tolerance.
• Validate the drive current: confirm the current your thermal design supports at 30W.
• Check pad and stencil design: flatness and void rate decide long-term lumen maintenance.
• Start with a 10,000 pcs run: standard MOQ, 5–15 day delivery, 2,000 pcs/reel packaging.

Bottom line: if your lamp program needs warm and cool output from one optical axis — headlights, fog lamps, work lights or searchlights — the 30W 3570 dual colour chip removes a whole second optical path from the design.