Product Feature - This wireless switch controller is asy to install, simply install the controll/receiver between the devices to be controlled and the power supply, It's ideal to replace the old wall switch. You can switch your lights on and off from anywhere via the receiver mounted on the wall or by remote control. Expand your lighting system freely. No battery or any wiring required for the switch. - Strong signal and operating range as long as 100m at open air, RF433MHz with good penetration power through walls. - Wide application, ideal to remote control your LED lights, exhaust fans, field mower, toaster, waste processor etc. - Wide input voltage from 100v-240v for wireless switch controller, and adapt to varies working scenario like homes, offices, restarants, factoreis etc. - Long life time, the verified lifetime of wireless remote control switch is at least 100,000 presses. It serve you half of one century once you own it. - Optional c…