probablly had oils from your hand or moisture on the bulb if the thing exploded. thats all ive ever heard of making bulbs explode....
but yeah hang on i think i still have some info on the subject.....you can thank kp for it later.
How to wire your own Marijuana Grow lights &Save Money & Wiring 2 Rooms With 1 Ballast,
the link teaches all about wiring them up. you can get cheap parts all around the web. if you have any problems pm me but i doubt that you will, its more of the matter of finding the right price for ya. lol
im thinking that you may e able to wire a toggle switch in that could by pass the ignitor when left one way and alloqw current to go through it and out if you leave the switch the other way......
if we dont have someone in here that knows before this evening ill make a request for someone to stop by and give you input on the matter.