High Intensity Discharge (HID) lights have a tube of glass that replaces the filament of traditional halogen light bulbs. The gas is ignited with 20,000 volts and stays illuminated by a constant 12v source that is provided by a ballast which is connected directly to your battery. Cheap xenon-filled halogen bulbs do not use the same technology and are tinted blue to give off a white light. They still have a filament and produce less light output then standard halogen bulbs of the same wattage.

What is the difference between an HID kit and "Xenon Claimed" Blue Bulbs sold on the market?