H4 9003 Harness Upgrade 16 Gauge Plug and Play Upgrade (Pack of 2) H4 9003 Upgrade Wire Harnesses are 100 percentage plug and play 16 Gauge Upgrade wire harnesses increase wattage capacity from 55w to 110w Upgrade wire harnesses do not negatively effect your cars wiring Upgrade Wire harnesses are 100 percentage universal and can work with other bulb brands Pack of 2 pcs ;14.5cm Wire Length