Smart Switc-h,Smart Wi-Fi Light Wall Switc-h,2.4GHz Wi-Fi Tou-ch Switches,Fit For US Wall Switches, 4 Gang Specification: Wiring mode: on-ly fire connection is required, and ze-ro li-ne is not required Access voltage: AC100-240V Maximum power: 300W / Gang (each circuit) Wireless standard: 80211b / g / n Security mechanism: wpa-psk / wpa2-psk Product material: pcv0 fireproof + glass panel Product size 4.72x2.91x1.34inch Box size: 5.35x3.14x1.57inch Product weight: 0.39l bs Full set weight:0.53l bs Features: Capacitive screen tou-ch, feel like a mobile phone screen, just tou-ch it gently with your fing-ers Tempered glass panel, easy to clean. It doesn't change color. It always looks new. The glass panel can be waterproof, and the wet hand can tou-ch the control at any time without affecting the sensitivity. VO class flame retardant and fireproof shell to strengthen the protection of short circuit of power line. Wireless WiFi makes operation more convenient and life easier. Two color indicator design, red is the power indicator, blue is the wif indicator, which can be distinguished in the dark. Suitable for ordinary lamps, incandescent lamps, fluorescent lamps, LED lamps, etc. WiFi features: App control: as long as the Switc-h is successful, the mobile phone turns on / off the light from anywhere without the same network.