Solar Panel " Panel Dimensions: 4.5" x 5.75" " Weight: 1.5 oz. " Substance Type: 2mm plastic/aluminum " Cell Type: Monocrystaline " Cell Efficiency: 17.6% " Open Circuit Voltage: 6.25 V " Peak Current: 300 mA " Peak Watt: 1.8 W " Enough to charge most portable electronics (Does not charge laptops)