From the category archives:

Design

DIY Solar Hot Air Panel Construction Guide

by Tim Fulton on December 2, 2013

DIY Solar Powered Alarm Clock – Modification

by Tim Fulton on November 4, 2013

DIY Solar Powered Alarm Clock – Clock Testing

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by Tim Fulton on October 28, 2013

DIY Simple and Great Looking LED Light Fixture

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by Tim Fulton on January 21, 2013