The Gutter Light™  is a revolutionary multi-use solar product with a Patent Pending attachment system that attaches to Gutters, Signs, Fences, and to any flat surface. Ideal for lighting doorways, walkways, stairs,  garages, sheds, playgrounds, boats, yachts, businesses, warehouses, vacation homes, and rental properties. The Gutter Light™ solar light has been redesigned for extra brightness,is compact so it can be stowed away in a backpack making it easy to tote around for backpacking and camping. Two AA batteries (included) power the light and will give extended run time with continuous light overnight on a full charge. What makes this product so unique is the detachable solar light head, this can be detached and reattached to the attachment mounting bar so that it doubles as a portable flashlight in case of emergencies.  I this case it can be brought indoors for night long illumination inside the home. After each use it is easily reattached to the base for additional charging and used for its primary use of perimeter lighting, or just lighting stairways, fences, and other assessable areas around the home.

Articles:

 http://keelynet.wordpress.com/2008/12/29/solar-gutter-light-saves-energy/

 http://www.ireport.com/docs/DOC-106448