Adafruit will not be shipping USPS orders Monday February 18, 2019 for the federal holiday, Presidents Day. Expedited USPS orders placed after 11am ET Friday February 15 will go out Tuesday February 19.

1 Watt Cool White LED - Heatsink Mounted

1-9 $3.95
10-99 $3.56
100+ $3.16
  • Description


    Make a 1 Watt flashlight or a headlamp with this ultra-bright LED. The LED is very bright, with 90 Lumens in a 140 degree lambertian pattern. Compared to most LEDs, you would say this is 30,000 millicandela. Either way, its incredibly bright! The output is a 'cool' 6000K pure white, not a 'warm' incandescent-looking white.

    The LED is mounted onto an aluminum PCB for heatsinking, and it also makes it easy to solder in. Simply connect to the big + and - pads on the PCB (there are two of each).

    The best way to drive these LEDs is constant current, @ 350 mA, but you can get away with under-driving for compactness. At about 3V, the LED draws ~200 mA, so connect two Alkaline batteries up directly with no resistor for a basic bright lamp. You can also try driving it directly with a 3.3V power supply, that will probably work OK as well (although its not ideal) - that's what we did when we made a vintage LED bike light using a 1W white LED.

  • Technical Details

    Technical Details+

  • Learn