The SureSine inverter, a pure sine wave inverter was designed specifically to meet the needs of rural PV electrification requiring AC power including solar home systems, schools, community centers and health clinics. This inverter is also a good choice for small PV systems for telecom, remote cabins and weekend homes, as well as RV/Caravans and boats. Specifications: Model #:SI-300-115V Part #: 320014 Input Vdc Watts(voltage direct current): 12 Continuous Power: 300 watts Weight: 10 lbs./4.5 kg Dimensions: 8.4" x 6.0" x 4.1"/213.4 x 152.4 x 104.1 mm Warranty info: 2 year warranty from manufacturer