The RGB strips are made of WB2812 lamp beads and flexible PCB. It contains 30 lamp beads per meter, which can be bent freely. The back side is coated with 3M tape, and the outer surface is covered with waterproof insulating rubber layer, which has the effect of collecting light and blocking light. 

        The WS2812B lamp bead is controlled by a shift register. This means that you can cut and extend the strip as needed. Each lamp bead can be independently controlled. Arduino, micro:bit and other controllers can be operated quickly, and only one signal line is needed except the power supply and ground wire, eliminating the cumbersome wiring.

Signal type: digital signal
Working voltage: 5V
Working current: <=2A
Pin definition: +: positive power supply
                  -: negative power supply
                  S: signal
Cable: 3P sensor cable
Fixed hole: M3*4