OPT7 Bolt AC 35w Harley Davidson HID Kit w/Relay and Capacitors - 4.5x Brighter Simple Install - 2 Yr Warranty [H4 Bi-Xenon - 10000K Deep Blue] Bolt AC 35w: Extra bright 3,400 Lm light - Increased reliability with AC ADAPT technology (lasts 20% longer) - Compact Casing 4.5x More light than halogen - 5,000 lifetime hours - 35% less power usage - Compact Slim Aluminum Casing - IP67 Waterproof Seal - Rumble Resistant Padding COLOR PERFECTED: A perfect blend of xenon gas, calibrated by our own Unicolor xenon computer to ensure your vehicle is seen in the best light OPTIMAL BI-XENON: A complete HID solution that replaces both your low beams AND high beams. Highly Recommended! EVERYTHING YOU NEED: Includes 1 Bulb, 1 Ballast, 1 Relay, and 2 Capacitors, a FREE 2 Year Warranty, and a FREE Installation Support when purchased from OPT7Lighting.