Green Options » light drops http://greenoptions.com/tag/light-drops Posts tagged 'light drops' Tue, 16 Dec 2008 00:34:35 +0000 http://wordpress.org/?v=2.5.1 en Lightdrops Umbrella is Powered by Rain http://cleantechnica.com/2008/12/16/lightdrops-umbrella-is-powered-by-rain/ http://cleantechnica.com/2008/12/16/lightdrops-umbrella-is-powered-by-rain/#comments Tue, 16 Dec 2008 00:34:35 +0000 Ariel Schwartz http://cleantechnica.com/2008/12/16/lightdrops-umbrella-is-powered-by-rain/ rain

Anyone who has been caught in a torrential downpour knows that rain can be pretty powerful stuff. That’s why the Lightdrops umbrella prototype is so ingenious. The polyvinylidene fluoride (PVDF) umbrella features a “collective membrane” that powers its LED lights with energy from the rain.

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