Jan Van Nuenen made this solar-powered strobe-opto-theremin-synth-thing, the Sunnan Synth. Built using a $20 desk lamp and a couple dollars worth of electronics, it lets you get your beeping and bleeping in while away from the grid. Want to make your own? The schematic and making-of photos are included on the project website. [via ikea hacker]
2 thoughts on “Solar noisemaker from IKEA desk lamp”
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Very creative, functional and practical, definitely counted as one of those power saving products.