... features are followingreasonable design , light weight, small size,power, high conversion,pure sin wave AC 220V output;3 ... supply. 2. parameter : Model number LG—FD12A20W Solar power systemNoDisposal itemMaterial instructionParameter instructionLife time1Solar moduleImported polycrystalline silicon cell20WP25years2500WDC/ ... 0KWh 3. Application 4. principle 12V20W portable solar power systems for home