Sunfine sm inverters transform the ustable dc power to single phase pure sine wave ac power feed in public grid. Features: Power range 1kw-20kw Max. Efficiency 97.0% Mppt 99.0% Power factor 0.9999 Afd against anti-islanding Pure sine wave thd&3% Multi-protection for maximum safety Multi-language lcd display with button operation Less standby power loss Stacked available Rs485/232 compatible Various solar panel types matched Topology hf-chain Protection category ip65 1kw: 454*270*181mm, 18kgs, 1pc/honeycomb carton/fumigated plywood case