Mean well 200w single output switching power supply rsp 200 series mean well rsp 200 12 p the mean well rsp 200 12 is a 200w single output power supply from the rsp 200 series this ac dc enclosed switching power supply has a low profile of 1u and is highly reliable it runs with an efficiency of up to 90 with free air convection cooling the rsp 200 12 is ideal for applications requiring energy savings no noise limited space for installation as well as economical cost p p functions