Specification Solar panel: 20W/18V polycrystalline silicon, FM radio: more than 20 channels Battery: 12AH / 12V lead-acid maintenance free LED Lighting: 12V 3W LED bulb x 2pcs USB port: 1A / 5V x 2pcs, compatible with all 5V USB-charged devices DC Output :12V / 5A (6 ports) Charging Time 10-12 hours fully charge the battery by solar panel 7-8 hours fully charge the battery by AC adaptor Lighting Time 1 bulb, around 30 hours after the battery is fully charged 2 bulbs, around 16 hours after the battery is fully charged