Two working voltage available: USB 5V or AC/DC 7V-32V
With signal instruction light and relay pull-on instruction light
Power 1W, and quiescent current:80mA
Cutover current 10A 2200W/1 channe, Cutover voltage250V
Max load:16A 3500W/4 Channel
Working Temperature: -40 to 70 degree
Working Humidity: 40% to 80% RH
Function:

1 Default Self-locking mode: Turn on/off 4 connected devices separately or together.
2. set inching mode in ewelink : Press the open relay by mobile phone, then cut off the pull-on immediately(default one second),work as wireless button
3. Interlock mode: Turn on one device every time, and turn off others at the same time.

Feature:

Independently control 4 devices: remotely turn on/off 4 home appliances independently
Set 8 time schedules for automatic control: create 8 enabled single/repeat/ countdown timers to automatically turn on/off devices at the specified time
Sync Status:Real-time devices status provided to App
Voice control
work perfectly with Alexa-enabled devices like Echo/Tap/Dot, as well as Google home.
“Alexa, turn on the light.”
“Alexa, turn on Garage door.”
“Hey Google, turn off the bedroom light.” “

Package included:
1 x 4CH WIFI Wireless Smart Home Relay Switch Module
1 x Instruction
1*2.4G RF(without battery,battery model CR2032)