OPT7 2pc Blitz 9006 Replacement HID Bulbs [10000K Deep Blue] Xenon Light Ultra Bright Z-Arc Mini-ball" Xenon bulb made to last over 4,500 hours @ 3,000 Lms of brilliant Xenon light For BLITZ 35w, 55w, and Bullet HID KITS. Not compatible with BOLT series or other AC HID ballasts Includes Two (2) Z-Arc HID Bulbs 2 Year Manufacturer's Warranty from OPT7 Lighting