XH-M131 DC 12v Light Control Switch Photoresistor Relay Module

Light threshold can be adjusted by potentiometer to set the relay start
Input: DC5V 
Load capacity: 10A / AC 250V or DC up to 30V
RED LED ON: Indicate the Power ON
BLUE LED ON: Relay is working
Module output terminal has three ports
Normally open ( NO )
Common terminal ( COM )
Normally closed ( NC )
Size: 30MM*53MM