What is the difference between genuine XENON HID lights and Xenon gas-filled bulbs?

Answer: High Intensity Discharge (HID) is a type of lighting technology that replaces the filament of the light bulb with Xenon gas. The gas is ignited to produce an arc of light when high voltage is applied. The amount of light output is three times that of a standard halogen bulb. The lamps also glow at a higher light temperature (closer to natural sunlight) which produces its distinct color and appearance. Other companies produce halogen filament bulbs that are gas-filled. They still consume the same power, as they are halogen technology, yet the gas gives the bulb a bluer color when lit and an increase in life. Xenon-filled halogen bulbs produce little or no more light output than standard halogen bulbs of the same wattage yet produce a minimal output in comparison with an HID light.