Features: 1.Self Powered: No batteries required, self powered light switch is used kinetic energy, press button to produce electricity, eco friendly and durable. 2.Wireless Control: You are free to use the wireless switch anywhere within your control, sends a wireless 433mhz signal to the receiver to turn the lights on and off. 3.Strong Signal: Indoor transmitting distance is 98.4ft/30m and outdoor 262.5ft/80m, powerful RF signals can penetrate walls and doors without any interference. 4.Easy Installation: No need to rewire, you can choose to install the switch to any wall in the house or just use as a portable RF remote control. 5.Wide Application: Wall mounted light switch has a wide range of application, suitable for any lights like incandescent, halogen, fluorescent, CFL, etc. specification:Item Type: Wireless Light Switch Kit Material: PC and electronic components Color: White Work Type: Reset type Power Mode: Kinetic energy self generating electricity Operating Frequency: 433mhz Communication Mode: RF/2.4G Voltage: AC100-250(V) 50/60Hz Maximum Load: 10A Transmitting Distance: Approx. 80m/262.5ft(outdoor), approx. 30m/98.4ft (indoor) PackageList:1 x Wireless Light Switch 1 xReceiver 2 xDouble Sided Adhesive Tape 1 x User Manual