Overviews:
This smart switch is a one way WiFi sensitive control luxury tempered glass panel wall switch.
It can be paired with iOS/Android APP eWeLink via WiFi, allowing users to remotely turn on/off the LED and lights from anywhere at any time.
Its LED backlight lets you easily find and turn onthe switch at night.
It can be used to control lights or home appliances. Upgrade your home withthis modern, fashionable alternative to traditional light switches.
It supports Amazon Alexa.

APP Functions:
Remote ON/OFF
Scheduled/countdown timing
One-key sharing
Group/scene management

Specification:
Terminal platform: Android , IOS
Transmission: wifi
Control distance: Infinity (in 2G / 3G / 4G / WIFI network)
Standard: 86 type
System: support IOS6.0 / Android2.3 and above
Input Voltage: AC85-250V, 50 / 60hz
Max. Current: 5A
Rated power: 1000W(max)
Wifi Frequency: 2.4GHz 802.11b / g / h
Power supply: zero fire power supply
Shell material: flame retardant ABS
Panel material: tempered glass
Color: White
Size: 85mm x 85mm

Works With Amazon Alexa:
Please refer to: www.itead.cc/blog/ewelink-works-with-alexa-tutorial

More details, please refer to:
www.raspberrypiwiki.com/index.php/WiFi_Smart_Wall_Touch_Switch