GEREE DC 12V One Channel Self-Lock Relay Module for Arduino AVR Dual-panel design PCB;Stable and reliable chip used as a control, strong anti-interference, no false triggering than CD4013 excellent performance. The regulator has the power to provide adequate and stable voltage, and have enough vents to ensure stable and reliable operation of the product for a long time. Protection against power reversal protection diode, short reverse power without any damage to the product. You can also trigger external trigger switch with terminal blocks with a good product and the lead, more convenient to use. Supply Voltage :DC12V; Supply Current: more than 200mA; Load: 250V 10A (AC) or 30V 10A (DC).