Dark Energy 18W Spectre Folding Solar Panel Gray. 9 ounces. It delivers up to 18W of output setting a new benchmark in power efficiency per ounce. This folding solar panel is designed to be 70-75 percent lighter than average 18W panels and nearly 70 percent more reliable in rough scenarios. Equipped with advanced technology it provides unmatched efficiency durability and performance in various environments. Specifications for Dark Energy 18W Spectre Folding Solar Panel: Manufacturer: Dark Energy Color: Gray Battery Type: Solar General Application: Casual Length: 24.5 in Width: 12.5 in Voltage: 18 watts Features of Dark Energy 18W Spectre Solar Panel: Weight: 8.9 ounces Output: Up to 18W Efficiency: 4X lighter than competitors high power-to-weight Technology: Resilient Photo-skyn with CIGS (Photo-Skyn) panels Performance: Better in shade or cloudy environments Waterproof Rating: IPX7 Durability: 200lb crush rating nearly 70percent more reliable in rough scenarios Design: Folding for portability and convenience Package Contents: Dark Energy 18W Spectre Folding Solar Panel Dark Energy SSPF18GYGY: 18W Spectre Folding Solar Panel Gray