///IPF｜HARNESS・SWITCH・STAY Specification. Price. WH-2. Complete Wiring Harness Kit for IPF Head Light Series (600w MAX) 2 or 4 Lighting System for Low Beam. OPEN. WH-2 There is a car that causes abnormal blinking depending to the model. Per Light/150w MAX. To the top of this page. LIGHT STAY. ///IPF | PRODUCTS Market-leading IPF LED headlamp bulb series has evolved as the F series. It provides outstanding performance of brightness and wide light distribution. The single, "all-in-one" body assembly allows for ease of installation. Designed to fit a wide range of vehicles with limited installation clearance.