my two cents

[factman]

EMPI sells the conversion to use the H4 style bulb which comes with 55/65W white bulbs and then go buy the bulbs you want if you want the blue bulbs and/or more watts. they are a direct replacement for the sealed units VW uses. they just have a replaceable bulb that comes in from the back instead of the bulb and lens being one as they are with stock ones.