Mean well 100w single output switching power supply rs 100 series mean well rs 100 12 the mean well rs 100 12 is a switch mode power supply from the rs 100 series this low cost and high reliability power supply is supplied with voltage ratings of 12v dc output voltage it is compact and lightweight and has been designed to be mounted into equipmentracks etc the psu has a universal mains input voltage of 88 to 264v ac and 125 to 373v dc it has short circuit overload over voltage and over