"Specifications Size: H4 Color: 6000K Power: 55W Package Includes: H1 Xenon Bulb: 2Pcs 55w Hid Ballast: 2Pcs Important: The size of this xenon bulb is H1, if you aren't sure the bulb size of your car, please contact us or search ""Automotive bulb finder"" Ultra bright xenon bulb and stable ballast, it's the right kit for xenon replacement. The high performance of the xenon bulb let the light of it is 3 times brighter than that of halogen, the super brightness can enhance your visibility at night. 6000K super white light, the right color for you to see clear and further Super white 6000k light, this xenon light provides a cool light color. 55W 12V, reliable performance, stable lighting. A pair of full power of 55W ballasts is included, it make the xenon bulb start quickly and work stably."