1.On & Off grid solar system 2.Portable & Movable solar system 3.AC & DC ... failure automatic recovery, normal use without maintenance. 4)Automatic intelligent: Inverter controller chip microcomputer, without interference, high reliability, automatic digital ... no management on duty. 5)Complete product specifications: 110V/220V single-phase output voltage specifications: 10W, 20W, 30W, 40W, 50W, 80W, ...