If you want the 100% truth, HID is the way to go a storm. Even at, ahhuuum, none legal speeds on b roads at night, low beam is enough. Because the kits I supply are a true hi/lo beam xenon, when you flick to high beam, you actually, how can I put it, lose some of the definition of your high beam at the moment. That isn’t to say you can't see more, just that Xenons are designed to pick out whites/reflections etc, and when they aren’t seeing this they sort of disperse. I will be honest in saying this as when I first fitted mine I thought, mm, low beam, could not be better, daylight at night, but I was a bit let down with the high beam, till I realized what it was doing.
The way the H4 bulb changes from low to high, if you didn’t already know, is it has a solenoid on the back which physically moves the filament back and forth the right amount.
Down to the kits, be careful as there are a lot of rubbish ones around. Problem with the storm is you have 1 bulb. If this fails down a B road, well you can see where I am coming from. Also the design and shape of the bulb is a major part of a H4 conversion. Try pulling your bulb out, even less than a millimeter & see how it buggers the beam pattern up!.
The last part of the puzzle is the ballast. Cheaper kits will require higher voltage to be stable, hence running power from the battery. Also, size & length of wires, (which can't be cut/extended from ballast to bulb), play a large part in installation, neatness etc. If you get the right size ballast it will fit just below the clocks, sort of behind the side light, totally hidden from view, & although they are waterproof, again, because you only have the 1 bulb, adds a bit more weather protection on top of the sealant on the ballast.
Hope this helps, & cheers Kingster for the kind words.
Beers in the mail.
Shane
). Your battery and rectifier will thank you.
Any more info or help anyone wants, feel free to ask about anything electrical. Oh, btw, the only other big mod required is a £5 sidelight bulb to sort of match the white light, yellow sidelight just doesnt cut it, and looks so 'yesterdays light' 
