04-16-2009, 04:10 PM
Jack,
Ditch the diode, you won't need it. Your decoder will have separate leads for a headlight (white) and backup light (yellow).
If it is a 12v bulb, it should be OK on 15V, although brighter than usual. You might want to pick up a 15 or 20V bulb just for a safety margin... plus I like the colour of a 20V bulb run at 15v over a maxed out 12-15V bulb. You'll also get longer life from an over-rated bulb.
Ditch the diode, you won't need it. Your decoder will have separate leads for a headlight (white) and backup light (yellow).
If it is a 12v bulb, it should be OK on 15V, although brighter than usual. You might want to pick up a 15 or 20V bulb just for a safety margin... plus I like the colour of a 20V bulb run at 15v over a maxed out 12-15V bulb. You'll also get longer life from an over-rated bulb.