ITEM NAME:Aluminium Knob LED Dimmer Controller 12-24V 8A for Single Color LED Strip Light Descriptio n Description: Turning the knob clockwise will increase the brightness; turning the knob counterclockwise will decrease the brightness; Specifications: Material: Aluminum Color: As Pictures Show Size: 65*68*52mm (L*W*H) Technical Parameters: Rated Voltage: 12V, 24 (V) Control Mode: Constant Voltage Output, PWM Regulation Current Control Range: Lamp, Light Bar, Module And Other Lamps Interface Type: Screw Terminal Signal Mode: PWM Stepless Dimming Certification: Ce, UL, ROHS Supply Voltage: DC12-24V Channel: Single Channel, Common Anode, Constant Voltage, PWM Regulation Current Maximum Current: