Photos: Gadgets go green at Greener Gadgets

Some makers of renewable energy or sustainable design products focus on social issues. SunNight Solar has a BOGO (Buy One Give One) program, in which people can buy one solar flashlight for themselves and the company donates one to someone in a developing country. The goal is to reduce the use of kerosene lamps, which are unhealthy and dangerous.

Photo by Martin LaMonica/CNET News.com