as above coz i cant tell the difference.

 

xenons are single filament (effectively) for cars with seperate main beam bulbs

bi-xenons, either have 2 bulbs, or are motorised, and are suitbale for cars which use the same bulb for both dipped and main beams (RST's cossies etc)

hope this helps

 

so bi xenons could have a dipped light which shines xenon and a main beam which is xenon???

 

yup...most kits are motorised so they create the correct dipped pattern, then move a shield to create the main beam pattern

 

in most cheap HID kits. the bi-xenon is acheived by a solenoid pulling the bulb backwards (the shiled stays in the same place) to put the bright bit in the same place as it would be with a dual filament bulb so that the reflector works in the same way

 

think i got it...