QUOTE(Guy With The Truck @ Nov 15 2007, 07:06 PM)

Id use a relay, going to when I run my HID setup on my YFZ, low power switch to give power to the relay which opens high power to HID. fuse on the switch and the larger gauge of the relay a fuse. dont want anything to burn down because of a shorted wire.
Relay and 2 fuses like GWTT. Much safer if you have a short. Remember, the small gauge wire that triggers the relay cant handle the same power of the lights. Or, you can trigger the relay by using the switch to throw ground. Then you only need one fuse.
Look here for a discussion with diagrams:
http://www.glamisdunes.com/invision/index....96&hl=relayFound the other thread I was looking for with more pics and discussion:
http://www.glamisdunes.com/invision/index....56&hl=relayEdited to add:
Remember to follow the last drawing of the post that shows the fuse location directly from the battery ( fuse should be close to the battery) whether you use ground or hot for the relay trigger. The first pics do not show the fuse.