Intellitec 12V Light Dimmer 00-00263-000
It also has a push button switch that provides a push-on/push-off function so that the light level need not be changed. The unit will handle up to 6.5 amps of incandescent lamps. It is a two terminal controller that wires in series with the light. It can be wired either in the high side or low side of the circuit.