12V 1-Channel Relay Module by ADIY is a Bidirectional isolation type 1-Channel relay control module, according to user needs, you can choose a high or low level to control the relay pull. The module uses a genuine high-quality power relay, high-quality subminiature package optocoupler, high power high voltage transistor, red and blue signal indicator, and layout board considered comprehensive, stable performance, and can be widely used in a variety of power control applications. Normally open interface maximum load: AC 250V / 10A, DC 30V / 10A. The use of high-quality ultra-small optocouplers, anti-interference ability, stable performance; trigger current only 3mA.