会社のニュース LED Application Scenarios: 5W 3535 High Power White LED Chip for Street Lights, Floodlights & Tunnels

Most street lights that fail in year two do not fail because the LED chip was cheap — they fail because the heat path and the drive current were guessed. A roadway luminaire runs 4,000 hours a year, often at 60 °C ambient inside the housing. The emitter that survives that regime is the one chosen for its thermal pad, its current rating and its binning consistency, not its datasheet headline.

The Model: 400LM 5W 3535 High Power White LED Chip

The 5W 3535 high power white LED chip from the BOSMFC range is a ceramic-package emitter built for exactly that duty. It delivers 400 lm from a 3.5 × 3.5 mm footprint at 1,000 mA, with a 120° viewing angle and a 3-year warranty — a combination aimed at fixture makers who need repeatable output across thousands of units rather than a single bright sample.

Four Application Scenarios Where This Emitter Fits Naturally

1. Street and Roadway Luminaires

Six to eight of these chips behind a 60° or 90° secondary lens give a 30–40 W module with the throw and uniformity a residential road needs. Because every chip is rated at the same 1,000 mA, the string design stays simple — and replacing one bin does not shift the colour temperature of the whole fixture.

2. Floodlights for Facades, Yards and Sports Courts

A tight cluster of 5W emitters on a metal-core board produces the punch that floodlights need, while the 120° primary beam leaves room for 30° or 45° reflectors without heavy loss. Tennis courts, car dealership forecourts and warehouse yards are the classic fits.

3. Tunnel and Underpass Lighting

Tunnel fixtures are valued for predictable lumen maintenance, not peak brightness. A 400 lm chip run well below its thermal ceiling holds output longer, which keeps the lighting design compliant over years instead of months.

4. High-Bay, Canopy and Petrol Station Retrofit

Retrofit modules replacing 100–150 W discharge lamps can hit target lux with a compact 4×5 chip array, keeping the housing shallow and the heat spreader small — a decisive advantage when the existing canopy has no room for a large heatsink.

Reading “400 Lumens” Correctly

Five Design Notes That Prevent Early Failure

• Respect the solder pad: the thermal pad is the only reliable heat exit — use a metal-core PCB and a void-free reflow profile.
• Never drive from a constant-voltage supply: 1,000 mA needs a constant-current driver with a defined current tolerance.
• Design the optics around 120°: secondary lenses should be specified for the beam you sell, not adapted from a narrower emitter.
• Seal the cavity, not the chip: moisture ingress kills high-power emitters faster than heat in outdoor fixtures.
• Keep bins together: mixing bins in one luminaire is the fastest way to produce a visible colour patch on a road.

Who Makes It — and How to Source It

This emitter is manufactured by Dongguan Lanjin Optoelectronics Co., Ltd. (东莞市蓝晋光电有限公司), the factory behind the BOSMFC brand. Founded in 2005, the company operates a 2,500 m² plant with constant-temperature, anti-static production lines, holds ISO9001:2015 certification and holds two national invention patents plus twelve utility-model patents. All products comply with EU RoHS, and every reel ships with reel, anti-static bag and carton packing for export.

Orders start at 1,000 pieces with 5–15 day lead time — send your luminaire wattage and beam requirement to the Lanjin team and they will confirm binning, Vf range and lens pairing before you commit a purchase order.