Colour changing LED

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houndsy
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Colour changing LED

Postby houndsy » Thu May 24, 2012 1:25 pm

Looking at the spec for these ( http://www.phenoptix.com/index.php/thro ... -auto.html ) it's not clear if they are voltage driven (fixed voltage) or current driven (constant current). The spec says 4.5v 20 mA .
Advice please. (I'm thinking of putting a number in series).

phenoptix
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Re: Colour changing LED

Postby phenoptix » Thu May 24, 2012 4:31 pm

Welcome to the forums, these are essentially fixed voltage.


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