LED Dimmer PWM DC Lighting Dimmer Controller for LED Incandescent Auto RV Marine Aircraft Interior Lighting Finally an easy-to-install, on/off switch and dimmer controller for interior lighting inside your RV, Truck, Auto, Boat or Aircraft. 12 Volt Pulse Wave Modulation (PWM) Electronic Dimmer for DC Lighting Applications and DC motor controller Self-contained 1.75" x 1.75" format. 7mm shaft and screw-down input and output terminals Integrated on/off switch with smooth control rheostat. Over-current protection. 7 Amp Capacity (96W, 12VDC) Dimmer with precise PWM control of LED and Incandescent Lighting