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jb92563 · 11-09-2016, 01:15 PM

Just a related thought:

A 55w headlight draws about 4.5 amps each so without a relay, upgrading to a higher watt headlight bulb as some folks do will also shorten the life of the light switch (as well as burning the plastic lens).

You will need to put in a 10amp+ relay for the headlights that will now trigger from the light switch AND the courtesy light signal wire?

Wondering if the current will flow the wrong way and damage something if the signals are not isolated from each other?
Perhaps a couple diodes will prevent that possibility?

11-09-2016, 01:15 PM	#15
jb92563 Registered User Join Date: Apr 2012 Location: Riverside, CA Posts: 1,665	Just a related thought: A 55w headlight draws about 4.5 amps each so without a relay, upgrading to a higher watt headlight bulb as some folks do will also shorten the life of the light switch (as well as burning the plastic lens). You will need to put in a 10amp+ relay for the headlights that will now trigger from the light switch AND the courtesy light signal wire? Wondering if the current will flow the wrong way and damage something if the signals are not isolated from each other? Perhaps a couple diodes will prevent that possibility? __________________ "It broke because it wants to be Upgraded " 2012 Porsche Performance Driving School - SanDiego region 2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP, Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)