Polycrystalline silicon Solar panel: 20W High capacity build in battery: 14V/5AH Lithium polymer batteries Output voltage: 19V (or 5V) Output current: 3A (or 1A) With AC adapter/USB interface 100% waterproof; 3W torch fuction (optional) Colors, Forest/Green or Customized Min. Order 1000pcs FOB Shenzhen, USD168/PC