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.
Product official page:
http://robotdyn.com/Mod-MOSFETRelay-DC24V-EN – International
http://robotdyn.ru/Mod-MOSFETRelay-DC24V-RU – Russian
* For get a detail information of product, instruction, guide and software, Pls visit to official page of product.