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This is a cordless 120 Volt lamp (60 watt equivalent, 940 lumens), powered by AA batteries through an inverter.  It will run for three hours when using 2700 mAhr NiMh batteries.

This lamp uses the Philips L Prize (most energy efficient 60W incandescent equivalent A19 bulb--less than 10 watts) for illumination.

A lot of the parts are 3D printed:

http://www.thingiverse.com/thing:59146

but the concept (batteries, switch, inverter, efficient lamp) could be used anywhere that bright light is needed, but wall current not readily available.

Step 1:

The concept is pretty straightforward.   The smaller the inverter, the better.  The more mAh the batteries can deliver, the better.

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Bio: My book, A BEGINNERS GUIDE TO 3D PRINTING: 14 SIMPLE TOY DESIGNS TO GET YOU STARTED is now available. If you want to design your ... More »
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