This Sunforce Products solar backup power system delivers up to 800 Watts of power, making it an ideal choice for powering up non-electrified cabins and cottages or storing emergency power. Application: Backup Power, Watts: 800, Dimensions L x W x H (in.): (10) 51 1/4 x 25 7/8 x 3 1/2 panels, Material: Polycrystalline Sharp Modules, Panel Type: Polycrystalline, Panels (qty.): 10, Battery Type: None; min. 350 Ah battery recommended, Battery Included: No Includes ten 80 Watt Sharp module panels; panels are 51 1/4in.L x 26 7/8in.W x 3 1/2in.H each 2500 Watt pure sine wave inverter for all types of appliances and sensitive electronics 50 Amp charge controller; controller is PWM and temperature compensating Minimum 350 Ah battery recommended; battery not included