Note:Make sure your socket type is H1,or it will not work.Will not work without ballastBenefits of HID Lamps:High brightness:both its luminous flux and illuminated area are three times as that of the halogen tungsten lamp.Long lifetime:the lifetime of lamp is more than 3000 hours that is around ten times of the halogen tungsten lamp.Latest style:the metal halide lamp for vehicle will provide you whit more pride, make you high-spirited and vigorous.Safer:provides you with a morecomfortable,wider,right and farther visual field,Waterproof,shockproof,excellent in performance.Low power consumption:the power of xenon metal halide lamp for vehicle is only around half of tungsten halogen lamp but emitting 3 time of light.Quick start:25% of objective luminous flux can be reached within 1second,80% of objective luminous flux can be reached within 4 second.Specifications:1. Model Number:  H13. Color Temperature: 10000K4. Power : 35W5. Voltage: 12V6. Luminous flux :3300LM ,near three times more than halogen light7. 3000 hours lifetime (approx 2-3 years usage)Package:2 X 35W H1-10000K Car Headlight HID Xenon Bulbs Lamps