For a much better price, and a much better panel try the Duralite 5 Watt Unbreakable Solar Module.
The newest SPS products include a line of powerful, compact crystaline solar panels. With 3 sizes, these modules feature tempered solar glass, anodized aluminum frames and 10’ (3.2 m) pigtail leads.
Unique to these modules are the SPS exclusive Omni-Mount frame, which allows full flexibility in mounting the panels to pipes, tilt racks or flat mounts. With the optional Omni-Mount bracket, installing the SPS panels is easy and fast.