Mean well 2000w single output switching power supply rsp 2000 series mean well rsp 2000 12 the mean well rsp 2000 12 is a 20004w single output power supply from the rsp 2000 series this acdc enclosed switching power supply has a low profile of 1u and is highly reliable it runs with an efficiency of up to 90 with forced air cooling by a built in dc fan the rsp 2000 12 is ideal for applications requiring energy savings no noise limited space for installation as well as economical cost