PIAA's Plasma Ion Fog kit features a 55-watt bulb (85-watt output equivalent) that exceeds SAE standards. At only 4" in diameter, this kit is a natural fit for today's cars and trucks with round openings in the bumper or front spoiler. The black stamped steel housing and hardened quartz glass lens comes complete with two lamps, a pre-assembled wiring harness which includes the relay and switch, and two black mesh covers. No cutting or splicing means this kit is easy to install. These lamps are engineered to perform anywhere, at any time and in any condition and are backed by a limited lifetime warranty. PIAA's number one selling lamp series. The compact and ultra-thin housing provides for a multitude of applications. With its 4 inch diameter the 510 Series is a natural for today's cars and trucks with round openings in the bumper or grill.