Features Circuit Protection The relay module has a built-in diode to provide accidental reverse polarity protection for the circuit, safe and stable. Easy Control The programmable delay mode controls relay timing, the relay module can control DC 30V5A or AC 220V5A devices. Wide Applications Our relay module can be widely used in smart household, industrial control, automatic irrigation, indoor ventilation and protective equipment, etc. Good performance: with optocoupler isolation, anti-interference ability, industrial grade circuit board, no parameter loss after power failure. Trigger Source: 1-channel relay module, which supports a control trigger for high level, low level and switching value, which is efficient and reliable. Specification: Item Type:1 Channel Relay Module Operating voltage: 6-30 V power supply. Trigger source: high level trigger (3.0V 24V), low level trigger (0.0V 0.2V), switching value control (passive switch) Output capacity: can control DC 30V 5A or AC 220V 5A devices Quiescent current: 20 mA. Working current: 50 mA. Lifespan: more than 100,000 times. Working temperature: -40-85°C. Features: With optocoupler isolation, improved anti-interference ability, industrial grade circuit board, parameters are not lost after power failure. Package list: 1 x relay module. Package List 1 x Relay Module