anicorn 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board

30VDC 250VAC Load Equiped with high-current relay, AC250V 10A; DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground.; High Level TriggerThe relay module is triggered by high level signal, which can be input from microcontroller IO.; 3V/ 3.3V power relay module- This Relay Board provides a single relay that can be controlled by any 3V/ 3.3V digital input from your microcontroller IO.; Wide Application- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/ 3.3V /NodeMCU/ ESP8266 module etc.

; Long Life Fast response time less than 20ms and long lifetime up to 100, 000 times snap action with diode freewheel protection.