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Old 11-16-2010, 12:24 PM   #4
pharmamatt
Scooby Newbie
 
Member#: 232507
Join Date: Dec 2009
Chapter/Region: E. Canada
Vehicle:
2012 WRX STI
Ice Silver

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Quote:
Originally Posted by CRAZYHAWK View Post
Being the car wasn't running, you ran the lights with 12 volts. You'll have around 14 volts with car running.

Power = (E x E)/R , that's voltage squared divided by resistance

You'll have 36% more power with the car running.
Ideally yes, but i'm pretty sure daniel stern lighting has discussed that there are massive voltage drops across the stock wiring.

anyway, i did the same thing with my car, huge improvement over stock, glad to see that there isn't a huge increase in housing or wire temperature.
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