SODIAL(R) PWM Dimming Controller for LED Lights, Ribbon, Strip, 12 - 24 Volt (12V - 24V) 8 Amp, Electrical Dimmer Switches for Home, Commercial, Industrial, and Office. Dimmer is compatible with Hilight, LEDwholesaler, fillite, and others' strips Input Voltage: 12V - 24V (12-24V) DC Output: 1 Channel (each controller for 1 strip/ribbon/lights for up to 8amp at 12vdc) Controller Dimension: L89 x W59 x H35 (H57 with Knob switch) Packing Size: L96 x W64 x H65 , Each order is for 1 controller Revision 2 for 24V DC compatible