HID stands for "High Intensity Discharge". HID lights get their name from the intense light produced by the electrical discharge. HID Conversion Kits give you the
option of installing true HID lights practically on any car that did not originally come with them from the factory.
Color Temperature is a measurement in Degrees Kelvin that indicates the hue of a light source, in this case the HID bulb. People not familiar with lighting may believe that the higher the Kelvin the brighter the light will be, this is false. OEM car manufacturers equip their cars with 4100k to 4300k HID bulbs which produce the most daylight-like light output. Lower temperature like 3000k will produce deep gold-yellow color, suitable for fog lights. Higher color temperatures will output light with a hint of blue/purple like the 5000k - 6000k bulbs, higher rated bulbs will be bluer and eventually purple in color as you go up the scale.
Color temperature is what usually catches your eye when you spot an HID equipped car on the road. The Kelvin bulbs will appear "brighter" to oncoming traffic, but in reality they output less visible light onto the road.
Lumen is a unit of measuring the light output, brightness, of a source. Traditional low-beam halogen headlight produces 1000 – 1200 lumens, while HID outfitted headlight outputs around 3200 lumens.
4100k - 4300k is the ideal HID color temperature to produce the maximum amount of light, lumens, hence the reason while all OEM manufacturers equip their vehicles with these types of bulbs.
Bi-Xenon headlight configuration is one where both low and high-beam use HID bulb. Unlike halogen headlight housings, where high-beam uses a separate bulb, Bi-Xenon uses the same bulb as low-beam. Under low-beam operations, Bi-Xenon headlight housing will shield part of the HID bulb. When high-beam is engaged, the shield is disengaged exposing the entire bulb.
Bi-Xenon kits are available for most applications.
Not sure what bulb your car is using? Try this Automotive Bulb Reference site to get the proper bulb information for your car.
Largest selection of HID lights for all makes and models from all over the world.