Self-powered wireless remote control switch: This is a self-powered wireless remote control switch that does not require a battery and can be used directly after buying it. The appearance is beautiful and elegant, and it is the for switches. What is a self-powered switch? The self-powered wireless switch presses itself to generate electricity, no wiring at all, no battery power supply, self-generated electricity for self-use, energy-saving and environmentally friendly patented product, press life more than 100,000 , use with self-generating receivers. No wiring from lamp (electric equipment) to switch. Working voltage : AC 85V~240V Quiescent Current : Less than 5MA Max current : 10A Max load: 2200W Weight:35g RF frequency : 433MHz Working temperature : -10~+70 Celsius Receiving Sensitivity : 97dbm Amount of storage remote controls : 20 pieces Support encoding : EV1527 Leaning code RF Operating mode : ASK superheterodyne wireless reception Receiving range : Open space is more than 20-100 Remote operating mode : Toggle Mode / Latched Mode Colour:White Material:ABS Package Contents: 1 x Wireless remote control (47.4 x 41.6 x 22.6mm) 1 x 1gang switch(85.5 x 85.5 x 12.5mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.