H11 Xenon HID Bulb - TOOGOO(R) 2x 55W XENON HID Replacement Bulbs Lamp, H11 (5000K) HID (High Intensity Discharge) refers to lighting technology that relies on an electrical charge to ignite xenon gas contained in a sealed bulb. A normal halogen bulb uses a filament which can burn out in as little as 200 hours. HID bulbs are gas filled capsules that are rated for a lifespan of nearly 4,500 hours. HID bulbs also shine much brighter due to this technology. Longer Life: The HID Kit lasts over 4,500 hours over 8 times more than OEM halogen bulbs. Safety : HID Xenon bulbs have an increased brightness of 300% (over traditional halogen bulbs) adding an extra margin of safety. Appearance: the HID Kit produces comfortable light which is very close to the natural light emitted by the sun. It makes everything easier to see at night.