... brightness in accordance with your actual need.12v dc dimmer controller Specification working temperature:-20-60°Csupply voltage:DC5V,12V, ... connecting wire before you turn on the power;2. functionremote controller led dimmer Connecting Diagram:Advantage of LED Dimmer:1. ... the assembly product of lighting controlling, which comb with LED controller, LED source light and switch power.1) RGB amplifier ...