hi all, hope ur well

just a quicky!

installed my h1 hids - lookin and working great

are the bulbs phase sensitive i.e. only work if positive and negative are the right way round feeding the ballast?

sorry if it's a stupid question it's just if noticed that they dont always 'strike' first time and i can't think why?

bulbs are being fed off the cars loom with 15a fuses to compensate, could i need to look at the light switch or something else i might've missed?

regards

sam