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100w LED Flashlight
12v LED lights for Car, Home, Boat......
A Home-Built Biomass Gasifier for Producing Wood Gas
Lawnmower Power Generator With A Twist
Build a Savonius VAWT to Make Electricity 2012 Update
Hybrid Design: Photovoltaic/Eolic for rural communities
Easy to build High powered Solar water heater from C-band dish