Smart Electronics New 1 Channel Relay Module 5V 12V 24V Low Level Trigger 1-way Relay Expansion Board

1. This module complies with international safety standards and has isolation slots between

the control area and the load area; 2. Using genuine relays; 3. It has power and relay action indicators, which light up when engaged but not when disconnected; 4. When there is a signal at the input end of the signal, the common end and the normal end will conduct; 5. Can be used as a microcontroller development board module, and can be used for home appliance control; 6. Control DC or AC signals to control 220V AC loads; 7. There is one normally open and one normally closed contact; 8. The blue KF301 terminal is more convenient to connect to the control wire.