OPT7 Blitz 35w H4 9003 Bi-Xenon HID Kit - 3.5X Brighter - 4X Longer Life - All Bulb Colors and Sizes - 2 Yr Warranty [5000K Pure White Light] Blitz 35w Series: Brilliant 3,100 Lm light - Reduced flickering with non-cycling technology - Crisp Clean HID Xenon Light 4x More light than halogen - 5,000 lifetime hours - 35% less power usage with the Z-Arc "Mini-ball" Xenon bulb Specialized H4 Bi-Xenon bulb upgrades both your low and high beams to brilliant HID Xenon light Durable Aluminum Casing - Waterproof Seal - Rumble Resistant Padding WANT THE BEST? Maximize bulb life and performance with an HID relay. Sold seperatly