Miscellaneous Electronics
4 Channel MOS PLC Amplifier Board Driver Module PWM 3-20V To 3.7-27V DC 10A Board Driver 4-Channel MOSFET PLC Amplifier
4 Channel MOS PLC Amplifier Board Driver Module PWM 3-20V To 3.7-27V DC 10A Board Driver 4-Channel MOSFET PLC Amplifier
https://www.bizrate.co.uk/miscellaneouselectronics/4-channel-mos-plc-amplifier-oid36906576887.html