2PCS 24V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger Equipped with high-current relay, maximum load: AC250V 10A, 15A 125VAC, DC30V 10A; Trigger current of opto-isolator: 5mA. The module Operating voltage 24V; Each channel of the module can be set by jumper cap high or low level trigger; The relay comes with 8(single) channel 24V activation relay, ready to control 250VAC at 10A. Extra isolation with opto-coupler at the front end of control, and the activation logic for relay is configureable via a mini jumper.