Mean well 150w single output switching power supply rs 150 series mean well rs 150 12 the mean well rs 150 12 is a switch mode power supply from the rs 150 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 132v ac and 176 to 264v dc it has short circuit overload over voltage and over