9006 9005 High Low Beam Quad SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay Typical results yield at least a 1 volt increase to the bulb socket leads, resulting in 30-50% greater output from your stock or aftermarket halogen bulbs. Simple plug and play 30 minute installation...zero messy cutting or splicing. Retain all original vehicle integrity and functionality. Independent low/ high beam input channels and output channels can run an entire 9006/9005 4 bulb setup seemlessly. NEW Custom snug-fit flexible rubber insulation tubing offers a space saving of over 50% over our previous version's loose-fit ribbed plastic insulation. MUCH greater wire flexibility for tight angles + vastly increased space saving = a far more elegant and streamline installation Dual MONSTROUS 40amp independent relays, housed in beautiful translucent casings, offering the highest level of protection and reliable operation for h4 bulbs up to 100 watts! Redesigned monoblock relay input assembly offers more robust durability than our previous design.