Portable SOLAR LANTERN, 28pcs LED. Features: Solar panel3W Poly-crystalline solar panel, tempered glass encapsulated, aluminum alloy frame. (Also have bigger solar panel for opintion) Battery6V 4AH Sealed lead-acid battery, Rechargeable maintenance free Light Sources28pcs LED (ultra bright, long duration, long life) ControllerOver-charge protection: 7 7.2V; Over discharge protection: 4.7 5.2VAccessoryAC/DC 220V transformer Charging timeAC transformer: 10 hours; 3W Solar panel: 10 - 12 hours Lighting time6 hours with strong brightness; 12 hours with weak brightness. Life of light source50,000 hours Life of solar panel20years Lead Time30days PackingColor box size: 20.5*17*35.5cm(1pc/box); Carton size: 43*36*35.5cm(4pcs/ctn); Qty/20 FCL: 1900pcs; Qty/40 FCL; 4080pcs.