Transistor DC Relay, 5V logic, DC 24V/30A

If you need to control the DC power, a MOSFET is what you need. This is a very common MOSFET with very low on-resistance and a control voltage (aka gate voltage) that is compatible with any 5V microcontroller or mechanical switch. This allows you to control high-power devices with very low-power control mechanisms.This board has an Opto-isolator to protect your microcontroller from high currents.We also left more space, if you need to install the heat sink for a transistor.