February 10, 2012, 1:34 pm
£17 sounds a bit cheap! I think even genuine HID bulbs on a car with HID's (or zenons) Are more than 17 quid.
If you are after upgrading from halogen headlights to a HID (high intensity discharge) Some call them zenons, Then there are a few legal issues you need to take into account...
The lights must have an auto cleaning, or washing system, and have an auto levelling feature to be legal in the UK.
I think we've all been privvy to the "boy racers" that have upgraded to HID's (into halogen lamps) and had the sharp blue lights blind us!
The main reason behind oncoming traffic getting that glare is down to the lens design of halogen lamps,... The reflector and lens is designed to scatter light in a specific way from a bulb pushing out X amount of candlepower. when lights are upgraded to HID's (from halogen) The bulbs could be running 5 times as much candlepower, thus why we all get blinded by HID upgrades!
There are ways around blinding others though, lower the headlight beam till oncoming traffic stops flashing you, (at least that way you are less likely to get pulled over by the police)
I believe also that aftermarket HID light kits WILL NOT pass the M.O.T next year, if not fitted as standard equipment.
A HID upgrade kit should consist of two HID bulbs, two ballast boxes, and a "plug and play" loom. (to upgrade the main beams to HID X the kit by a factor of 2).
The Focus St runs a CANBUS system, so a CANBUS friendly kit will be required, and SHORT bulbs if the headlight has a shielded bulb.
I was thinking of buying a 2nd hand set of pukka Focus HID/Zenon headlights, then retro fitting a HID upgrade kit into them (at least that way, at a glance the HID's will appear factory fit)