Dark Energy 18W Spectre Solar Panel Black. 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 Solar Panel: Manufacturer: Dark Energy Color: Grey General Application: Casual 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 Solar Panel lightweight adjustable kickstand Dark Energy SSPF18GYGY: 18W Spectre Solar Panel Black