The MMS Series from Magnum Energy is a pure sine wave inverter providing a cost-effective solution for those with smaller power needs in mobile applications. Versatile, easy-to-use and lightweight, the MMS Series provides a reliable base for your energy system. The MMS Series inverter is designed to accommodate entertainment systems and small appliances in smaller RVs and boats in an all new design. Based on the popular ME and MS Series inverters, the MMS is smaller, lighter and less expensive while retaining all the built-in protection and reliability of ME and MS models. The MMS charger uses a PFC (power factor corrected) charger, which is 85% efficient and the same charger topology used in all Magnum models. The MMS Series is ETL Listed to the stringent requirements of UL/cUL 458, CSA C22.2 #107.1-01 and meets the KKK-A-822E standard.