Adafruit
1 Watt Cool White LED - Heatsink Mounted
An ultra-bright 1 W cool white LED pre-mounted on an aluminium PCB heatsink, making it easy to solder and integrate into projects. With 90 lumens output in a...
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An ultra-bright 1 W cool white LED pre-mounted on an aluminium PCB heatsink, making it easy to solder and integrate into projects. With 90 lumens output in a 140° lambertian pattern, it delivers bright, even illumination ideal for flashlights, headlamps, and general lighting.
The LED produces a cool 6000 K pure white light. It is best driven with a constant current source at 350 mA, but can also be under-driven for simpler setups — two alkaline batteries connected directly (no resistor) will draw approximately 200 mA at ~3 V for a basic bright lamp.
Key Features
- Power – 1 W
- Luminous Output – 90 lumens
- Colour Temperature – 6000 K (cool white)
- Beam Pattern – 140° lambertian
- Recommended Drive Current – 350 mA (constant current)
- Forward Voltage – ~3 V
- Mounting – Pre-mounted on aluminium PCB heatsink
- Solder Pads – Two + and two − pads for easy connection
Ideal For
- DIY flashlights and headlamps
- High-brightness indicator and task lighting
- Bike lights and portable lighting projects
Package Contents
- 1× 1 W cool white LED on aluminium heatsink PCB
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
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