Features: *Easy to Install / Save Labor and --- No need for wire for remote control, you can put it anywhere; Do not pull cables, *Don't tear walls. The receiver was switched between power and lamp. Save labor and material costs compared to conventional switches. *Radio switch light set signal transmission range --- 70 meters outdoors, maximum 30 meters indoors. *This radio switch kit supports 3 control modes. Standard modes: ON button to switch on, OFF button to switch off. *Other modes: you need to clear the default mode and then set the pairing. Please read the details of the user manual. *The product uses non-directional radio coding technology and allows control without interfering with each other *for lighting, motors, remote controls, wireless alarms, controls, etc. *Application area:Homes, offices, shopping malls, hotels, hospitals, warehouses and other places for remote control lamps, home appliances, exhaust fans, motors, etc. Specifications: *Nominal voltage: AC (alternating voltage) 90-256V *Spectrum: 433 megahertz *Standby power consumption: