CH3 three channel extender one eight port hub third channel remote control switch R8 Remote control lamp three-way remote control switch. Just insert the steering plug of the remote control board into the third channel of the receiver to remotely control the lamp switch. A light can be plugged into the "receiver on" ( is, the light can be plugged directly into the receiver). Circuit board with step-up and voltage stabilization. Switch working mode:each time the third channel switch is toggled or the third channel button is pressed, it will be changed in the following sequence: Channel output is closed - channel a output is open, channel B output is closed - channel a output is closed, channel B output is open - both channels of output are open - Channel 2 output is closed loop Weight: 8.5g Cable length: 210mm Box size: 32mmx15mmx12mm Material:Composite material colour:As shown Package Contents: 1 * 3CH LED Lamp Light Switch Panel Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.