Xenon HID Replacement 12V 35W Ballast Universal Xenon HID headlamps designation is the high pressure gas discharge lamp. Its illumination level is excessing far way from traditional halogen lamp Xenon lamps have the unique work principle and has three times output brightness than Halogen Lamp 10 times used life than Halogen Lamp .while the power consumption is 50% of Halogen Lamp Moreover, its easy installation.