ITEM NAME:5V 2 Channel Relay Module with Optocoupler Isolation High/Low Level Trigger #JT1 Product Description Description: Features: Film type optocoupler isolation. Set high/low level trigger with jumper. Fault-tolerant design. With power indicator light and relay status indicator light. All ports can be connected. Specification: Net Weight: approx. 31 g Size: approx. 49 X 40 X 17 mm/1.93 X 1.57 X 0.67 in Max Load: AC 250V 10A, DC 30V 10A Work Voltage: 5/9/12/24V Screw Hole Size: 3.1mm Trigger Current: 5mA Included: 1 X Relay Module.Film type optocoupler isolation. Set high/low level trigger with jumper. With power indicator light and relay status indicator light. Trigger Current: 5mA. Included:1 X Relay Module. Max Load: AC 250V 10A, DC 30V 10A.