회사 소식 LED Application Scenarios: 2835 Tri-Color 660nm 460nm 830nm SMD LED Chip for Beauty Therapy Facial Masks

Walk any beauty-electronics aisle in Shenzhen, Seoul or Düsseldorf and the same question comes back: how do you fit red 660nm, blue 460nm and infrared 830nm into a mask that a customer will actually wear for twenty minutes? The usual answer is three separate emitters, three reels, three pick-and-place passes. The smarter answer in 2026 is a single 2835 tri-color SMD LED chip — and that is exactly the LED application scenario this article unpacks.

One 0.6W Chip, Three Therapeutic Wavelengths

Our BOSMFC 2835 SMD LED Red + Blue + IR integrates three independently driven dies inside a 2.8 x 3.5 x 0.7 mm package. Each channel runs at a 20 mA test current with its own forward voltage window, so a designer can sequence collagen stimulation, acne control and deep-tissue recovery from one footprint and one thermal pad.

Shared optical and electrical data: 120° viewing angle, reverse current ≤ 5 µA, 50,000-hour rated life, instant switching under 100 ns, operating range −40 to +85 °C, storage −40 to +100 °C, 4,000 pcs per reel.

Where This LED Application Scenario Wins

1. Wearable LED facial masks. The 0.7 mm height and 2835 outline let brands pack 60 to 120 emitters behind a silicone shell without heat stacking, keeping the mask under 200 g.
2. Salon-grade phototherapy panels. Mixed-mode programs — 10 minutes red, 8 minutes blue, 5 minutes IR — run from one constant-current driver board instead of three.
3. Acne and oily-skin handhelds. Blue 460 nm targets Cutibacterium acnes, while 830 nm reduces the inflammation that follows.
4. Knee, shoulder and back therapy wraps. IR-dominant output plus red gives physiotherapy users a portable recovery device that runs off a 5 V power bank.
5. Eye-care and dark-circle wands. Low-current red and IR duty cycles keep surface temperature gentle for the periorbital area.

Three Chips or One? A Cost and Design Comparison

For engineering teams, the practical guidance is simple: budget 20 mA per channel, keep the three channels on separate constant-current paths rather than a single resistor, and specify wavelength bins of ±10 nm so that mask-to-mask colour consistency survives mass production.

Built Behind the Chip: Dongguan Lanjin Optoelectronics

This tri-color emitter is produced by Dongguan Lanjin Optoelectronics Co., Ltd. (BOSMFC), a manufacturer founded in 2005 and operating a 2,500 m² plant with purified, constant-temperature, anti-static workshops. The company holds ISO 9001:2015 certification, 2 national invention patents and 12 utility-model patents, and assembles with 99.99% gold wire bonding and San'an or Epistar dies. For beauty-device programmes that means 3-year warranty coverage, RoHS and REACH compliance, MOQ from 4,000 pcs, 5 to 15 day lead times and 500KK monthly capacity — enough to move from sample mask to container shipment without requalifying a second supplier. Beyond this 2835 platform, the same phototherapy portfolio covers 5050 multi-wavelength combined chips, 3030 bi-colour IR and 3535 high-power 6 W and 9 W modules, so a single vendor can carry an entire skincare catalogue.

Sample and Specification Support

Free samples of the 2835 tri-color chip are available for optical validation, together with datasheets, IES files and reference driver schematics. Send your target wavelengths, mask layout and annual volume, and the engineering team will confirm binning and lead time within one working day.