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The Water Cooler
General Discussion
A question for the electrical whizzes
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<blockquote data-quote="Catt57" data-source="post: 3470980" data-attributes="member: 34578"><p>Due to the physics of the LED, different colored LEDs have different "forward voltage"s (a primary characteristic of an LED). <a href="https://web.archive.org/web/20090618030817/http://www.oksolar.com/led/led_color_chart.htm" target="_blank">This site's LED color chart</a> gives the forward voltages for their LEDs, but it does really depend on the LED in question. In general, the higher in frequency light an LED makes (the bluer it is), the higher the forward voltage. Often, a red LED's forward voltage is ~2V, a green one ~3V, and a blue one is ~3.4V, but it really does depend on the LED manufacturer and the exact frequency of the light emitted.</p></blockquote><p></p>
[QUOTE="Catt57, post: 3470980, member: 34578"] Due to the physics of the LED, different colored LEDs have different "forward voltage"s (a primary characteristic of an LED). [URL='https://web.archive.org/web/20090618030817/http://www.oksolar.com/led/led_color_chart.htm']This site's LED color chart[/URL] gives the forward voltages for their LEDs, but it does really depend on the LED in question. In general, the higher in frequency light an LED makes (the bluer it is), the higher the forward voltage. Often, a red LED's forward voltage is ~2V, a green one ~3V, and a blue one is ~3.4V, but it really does depend on the LED manufacturer and the exact frequency of the light emitted. [/QUOTE]
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