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Old Oct 03, 2012, 10:38 PM
jtprouty is offline
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Inherent Tinkerer
Wichita, Kansas, USA
Joined Jul 2003
1,470 Posts
LED Driver?

Hi Guys,

I want to use some 1 watt LEDs for nav lights. The LEDs run on 3.0 - 3.2V and a constant 300 to 350 mah to make the last longer. Do I need a driver for these LEDs or can I simply use a resistor to drop the voltage? I'm slightly "electronically challenged" so any info would be greatly appreciated!


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Old Oct 04, 2012, 10:11 AM
jglenn is offline
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Joined Nov 2003
1,655 Posts
A resistor is ok if running off one lithium cell, but if running on 12V, a buck convertor is
in order. National semi, LTC, Maxim, others have them. Switching step down regulator.
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