Been looking at the headlight mod for my 07 S2 FZ6 but whilst Im at it I wanted better headlight bulbs ,been looking around and there seems to be quite a choice available which give different buld output and wattage I assume that its best to stick to the 55 watt as the lenses look as if they are plastic and hence wondering how much heat buildup there is with brighter bulbs and which are more suitable , there seems to be Halogen ,Xenon, some are even marked as Xenon/Halogen ,do these need conversion kits to fit and which type give best all round light for the FZ6 lens ?