5V 30A 1-Channel Relay Module With Optocoupler High/Low Level Trigger Speaker Battery Working voltage 4

Working voltage 4

over-discharging

energy-saving lamps

High noise immunity

and 15-V parametric ratings

5V 30A 1-Channel Relay Module With Optocoupler High/Low Level Trigger Speaker Battery Working voltage 4This 5V 30A relay module is perfect for controlling high power devices, whether for industrial control, home automation, robotics, or power management. Its optical coupling isolation provides strong driving ability and stable performance, while the trigger current is only 5mA. You can set the relay module to high or low level trigger using a jumper. It also features clear indicator lights for power (green) and relay status (red). Compact and