Single dimmer is a dimmer allows stepless controller. Use knob control, LED will be adjusted to the appropriate light intensity through this dimmer. To connect the load line, connect the power cord; power cable between the front to ensure no short circuit; Use rotary control, the following functions: Turn the knob to the right, the light will gradually brighten, Turn the knob to the left, the light will gradually darken. Specifications: Working Voltage: DC12V-24V Max Output current: 2A each other Output channel: 1CH Work temperature: -20~60c Product color: White Size 6x3.3 Cm