mr67: Hello there, did you sms me just now? Anyway, to enlighten you some more about the hi/low light of the HID. Actually the HID H4.1 is a dual beam which mean in the individual H4 bulb socket, we have a Low beam tube xenon filled gas ( refer as HID ) and another small bulb (Halogen) attach side by side. The xenon filled gas tube will eventually be the low beam as for normal driving and normally high light is for signaling car in front only because the HID is already bright enuff and your high light will not be use anymore unless in certain condition only when needed to signal the incoming drivers or car in frint of you.
Yes, i got come across with some HID kit in the market with only low beam H4 and no high beam light bulb (not a relay retractable type). That day i got ask the guy selling this and he mention to me is that they are having problem with the hi/low light when swithing from low to hi or vice versa. Anyway, my opinion is better to get a HID with dual beam for H4 or you will lose your high light when in emergency situation or when you desperately needed it.
pete liew: Sorry, we dont have the dual beam with combination spectrum unless you have 2 projectors in a single head light tehn you can install 2 sets of HID with different spectrums.