Specification : Product Name : PWM Dimming Controller Supply Voltage: DC 12V-24V Maximum Load Current: Static Power Consumption: Output Power: 5V Output: 1 channel. Product Size: 89 x 59 x 35mm/3.5x2.3x1.4Inches(LxWxH) . Working temperature: -20-60 Degree Centigrade. instructions for use: 1, first connect the load line, then connect the power line; Before power-on, ensure that there is no short circuit between cables 2, the rotary control, the functions are as follows: When the knob is turned to the right, the brightness gradually becomes brighter, and when it is turned to the far right, the brightness is greatest. When the knob is turned to the left, the light gradually dims. When it is turned to the far left, the light turns off Instructions: Knob monochromator is a kind of controller which can realize stepless dimming.With knob control mode, it is a kind of dimmer that can achieve 0-100% poleless dimming. Users can adjust the light to appropriate brightness according to actual needs.Used to control all kinds of LED lighting, such as LED strip, LED module, LED string, etc.