This electronic relay contains 2 power outputs what can drive 60 Watt / each. The control is with a push button, to be connected to the yellow cable (and the ground cable). Every push on the button will change the status of the outputs. This is the standard operation for low - and high beam. If the green cable is connected to the ground cable, the outputs will change simultaneously. In this case, you can use the relay as a 120 Watt switch. Just cut the cable for the normal change between low beam and high beam.