Afraid of the dark? Built a simple Joule Thief circuit and would like to go further? Just want to have a cool blue light to show off to friends? Let me present..... The Joule Thief 10x10 LED Lamp! The Joule Thief 10x10 LED Lamp! Runs on one to four AA batteries. Lights up 100 LED's, illuminates your...
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bneo99Continue Reading »from Instructables: exploring - technology http://ift.tt/1DLjsDA
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