Plug and Play installation is incredibly easy as the Xtreme DX Gen2 plugs directly into your current original ballast (if you have xenon) or plugs into the vehicle's original socket (if you have halogen). The lamps are Plug & Play, making it as easy as changing a xenon or incandescent bulb. See more of the road and secure your driving with a much brighter light where you avoid time-consuming lamp changes! Xtreme DX Gen2 is a complete kit with two lamps for LED conversion of your original xenon lamps and halogen lamps on your low beam and full beam. These lamps work for cars (12V) and trucks (24V) if you have xenon and for cars (12V)