1 2 4 Way Wireless Smart WiFi Relay Module 5V/12V ESP8266 Things Smart Home Phone APP Remote Control Switch

Specification:
Origin: Mainland China
Type: Module
Condition: New
Specifications: 1 way/2 way/4 way
Input voltage: 5V DC
Relay type: 5V relay
Maximum load current: 10A
Control method: Support Wi-Fi network remote control
Communication protocol: Support TCP/IP protocol
Development environment: Based on for Arduino
Size: 1 way: 45*28*17MM/1.77x1.1x0.67 inch 19g
           2 way: 59*40*17MM/2.32x1.57x0.67 inch 36g
           4 channels: 64*60*17MM/2.52x2.36x0.67 inch 61g

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.