they run optimal on 12v, but it's WAY too bright.
I ran mine off 4.5V, because 9v was too bright. I think if you're using two of these lights, try to run them 3 volts each. I used a reflector on mine, because I wanted the light to be shielded from the eyes, making it easier for the eyes to adjust to the dark. I still don't have it positioned over the tank well though.
most cell phone chargers are 5v. some are 4.5v
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Everything I put in my tank is fully dependant on me.
Last edited by kwirky; 10-03-2006 at 12:25 AM.
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