AEDIKO 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger

["4 Channel Relay Module’s Path Can Be Triggered By High Level or Low Level Through Jumper Setting; Trigger Current of Opto-Isolator: 5mA","This 12V Relay Module is 4 Channel Isolated, Each Relay Can Individually Switch On/Off By An Opto-Isolated Digital Input","12V 4 Channel Relay Module Comes with High-Current Relay,Maximum Load: AC 250V 10A;AC 125V 15A ; DC 30V 10A","This Module Design With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable and Stable","The Module Equipped With Screwed Terminal Plate and Fixed Bolt Holes,Bolt Hole: 3.1 mm; 67*44.5mm (Spacing);Standard Interface Can Connect With Microcontrollers and be Controlled By a Wide Range of Microcontrollers Directly"]