GENSSI HID Xenon Replacement Light Bulbs H4 9003 Bi-Xenon Low/High 10000K More Blue (Pack of 2) Bi-Xenon H4 HID light bulbs; Replacement light bulbs for existing HID conversion kits Is your bulb burned or color not matching? Time to replace? These are the perfect bulbs for you! Choose your bulb size above and the color you want Bi-xenon bulbs require a special relay that controls the low/high beam movement of the bulb; This relay is not included; See pictures Please remember; HID bulbs change color over time; If changing your bulbs we recommend doing both at the same time for color match Pack of 2; Lumens: 3000-3400, 35W Standard, 3000-3200H Life, Shock Proof, Vibration Proof, Quartz Glass