12V 4 Channel Relay Module with Light Coupling Low Level Trigger Optocoupler
$1.10♦ Specifications
Number of channels : 4
Operating voltage : 12V
Max. current : 20mA
Trigger voltage : 12V
Switching voltage : 250V at 10A
Equipped with high-current relay
It can control both AC and DC appliances such as Motors, lights, fans, etc.