... KITS , AUTO HID XENON Car HID Xenon bulbs Specification:Lamp-chimney material: UV-CUT resist ultraviolet radiation quartz glassPrincipium: ... waterproof and dustproof testing4. DIN antisepsis testing ;5. Insant high/low voltage testing;6. 1000 times /one minute open circuit testing ; ... glass>Lamp base materials: special plastic made with heat-sink tech>Color temperature: 4,300K, 5,000K, 6,000K, 8,000K ...