20w solar system it can power two 3w LED lamp for ... also can be used for charging mobile phones. 1. solar panel: 20w with 5m power line2. Battery: Acid-lead battery, ... than 8hrs for 2 lamps and 10' box fan20w solar system, it can power two 3w LED lamp for more ... and any kinds of camping/traveling • Household power system can support , lighting, radio, recorder, fan,moblie phone Solar System 20W CES-1209