Specifications: Wave form: Modify sine wave Continuous working: 1500W Surge power: 3000W Charging current: 5Amp Efficiency: 85% DC input range: 24Vdc: 20~30Vdc AC output range: 100V, 110V, 115V, 120V, 220V, 230V & 240Vac Frequency: 50Hz or 60Hz +/- 3% Dimension: 445 * 200 * 80mm, Net weight: 4.4kg Accessory: AC wire & DC alligator clip Character: AVR design Input & Output isolated Auto temperature control fan Reverse polarity protection. / by fuse Output short circuit protection Temperature protection: 50 +/- 5degrees Overload protection Input low voltage protection Input high voltage protection Low battery alarm Low battery shut-down Description: Inverter with built in ABC charger (5Amp, 24Vdc) Connect batteries and operate it as UPS. This unit will be a UPS unit.