Features 1、Pulling in and Disconnecting: Can be realized that if pulse signal is given to the relay, the relay will keep pulling in, and another pulse signal is given, and the relay will keep disconnecting. keep disconnected 2、Output Power: The relay output of this module is a passive contact, which can control the DC or AC loads within 5A 3、PCB Material: Made of PCB material, with the self locking switch, high level trigger, and the working voltage is 24V 4、Meet Needs: This optocoupler relay module has strong driving ability and stable performance to meet more application needs 5、Easy Installation: The optocoupler relay module adopts user friendly interface design, which is very convenient to use and easy to install Specification Item Type: Optocoupler Relay Module Material: PCB Model: YYLOCK-1 Working Voltage: 24V Package List 1 x Relay Module