hello I need some help trying to put a bicycle light on the wife bike it have a system that not to go past the 6 volts however we have small motors on the bike to get it around and its sometimes go past this too the point of blowing the light so what type of resister is needed to make it work and still have no blow out on the light please respond with this info you can contack me at my email spitfire_5@netzero.net this will save me the time and money to buying them bulds all the time thank you joe