Solar-Powered Traffic Signs
by Justin Thomas, Virginia 
on 12.10.05
A Japanese company, Lintec Corp, is marketing solar-powered traffic signs. They are wireless, too, and supposedly save $2,800 on electricity over 10 years. The lights use LEDs, which means the bulbs don’t need to be changed for a decade. One other advantage is that the traffic signs will continue working if there's a power outage. Prices start at $960. :: Gizmodo via Groovy Green
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