HID conversion headlight kits....

[yody]

This is a sticky situation, i have done a lot of research on HID lights.
First, for the most part almost all conversion bulbs SUCK! There are a few at the most that make a quality bulb, but most of them are crap. You will lose your high beams, if you get a bulb that has both, i doubt it is a real HID. On stock setups they use a "flipper" that actuates when you hit the high beams and it makes the light output direct to a different part of the bulb which will shoot out the beam farther.
Next, wiring is a must, you MUST use a relay. A single 35 amp relay will due. Each ballast at the most will pull no more than 15amps if that, it is more like 13amps. If you have 4 headlights if you want to keep all 4 on when you hit the high beams you have to use a diode.
Ballasts are just like the conversion bulbs most of the aftermarket ones suck. There are more aftermarket ballasts that are decent compared to the conversion bulbs but i wouldn't trust them on my car.
The biggest problem with converting these systems to non OEM setups is glare. OEM cars use either projectors(look like a big magifying lense) or a special made reflector lense. If you merely put a conversion bulb in lets say an H4 lense you will get big time glare, possilby weird colors, and crappy output. If you pull up a car with stock projector HID's to a wall and look at the beam it will be a horizontal line that halfway goes down and over horizontal again, the reason that it goes down is to go below the oncoming traffics sight so they don't get blinded.
here are some pics i got from another site;
HUGE GLARE

WEIRD COLORS

PERFECT CUTOFF VERY GOOD SETUP

Another really good picture of a great setup



Comparison.. Pictured is a Acura TL-S with HID from the factory vs H4 6000K civic
See the difference?




So can you do a projector retrofit into a 7 or 5 inch housing? Probally wiht enough research time, I am using a setup like this
Hella 7" round H4 E code lenses(not dot approved but european, so there is better/more light)=$75
Caspers Electronics D2S shields(allow the use of a OEM phillips DS2 bulb to be adapted to a H4 housing, and it has a built in shield to reduce glare) I will also be modifiying it to work even better to reduce glare and weird colors)=#50
HELLA OEM ballasts with built in ignitors=$200 ebay/used
5000K OEM D2S phillips bulbs=$75 new ebay
I will do the wiring myself with a single Bosch 35 amp relay. That is the best you can get without using a projector, we will see how it pans out.
Also I should point out that all conversions are illegal in most states, and making and marketing them is illegal too. Most conversion bulbs come from China or are made in someones basement. There is a LOT more info on this, it isn't as easy as converting from sealed beam to H4. There is a lot more than involved. Save the crappy "i want blue lights" conversion for the immitation rice rockets. If you want to sell a good kit, get someone to retrofit a good OEM projector into a nice 7" round Lense and you will find a lot of interested people. Sylvania made some named Xenarc but they no longer offer the 7" round version, and supposedly they decreased the output to be approved by DOT.