Kensun Dodge Ram HID Conversion Kit with Resistors - 9004 (HB1) Bi-Xenon - 6000K Simple installation - usually in 20 minutes or less (some cars may require professional installation). Caution! Resistors can get extremely hot. Make sure to mount them away from anything that can potentially melt or burn. Ultra Bright 3600 Lumen Fused-Quartz Xenon Bulb: Produces 3X brighter light than halogen, uses up to 80% less power, increases visibility, is UV protected, and made to last with a 3000+ hour non-fading lifetime Kensun 35W Digital Ballasts are 100% Water-proof, 100% Dust-proof, 100% Shock-proof. Output short circuit protection. Quality Alloy Casing with UL94 V-0 Flame Retardant Grade silicone sealant protects from all the elements. 50W 6 Ohm Load Resistors: Eliminates Error Message on Dashboard and Prevents Flickering and Strobe Light Effect Kit Includes: 2 Kensun HID Xenon Bulbs, 2 Kensun 35W Digital Ballasts, 2 Sets of Universal Ballast Mounting Brackets, Kensun High Quality Error Free 50W Load Resistor Adaptor, 1 Elegant Aluminum Case, Complete Easy-to-Use installation instruction manual