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SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!

Ross MacLeod

Member Since: September 19, 2006

Country: United States

  • it is indeed 3.3V typical (typ.) however LEDs actually have a range of forward voltages they can be driven at. At the higher end, they’ll burn out faster (and nearly instantly if high enough) and at the low end it’ll dim until it doesn’t light. So, this LED can be driven at 3V but it’ll be dimmer than what the data sheet says.

    you can see a chart showing the relationship between forward voltage and the current draw, and then between the current draw and the luminosity (light output) on the data sheet’s third page.

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