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Joule Thief Battery Charger
Finding a use for weak AAA batteries.
Music blinking LED
Light Electric Vehicle: One-Passenger @ 15mph, 210# Curb Weight
Battery Voltage Indicator
POWERFUL WHITE LED RING
Head Mounted Laser Pointer communicator
Print Out Overhead Watch Light [Cheap and Easy and Solder-less ]
Mini LED Table Lamp Kit. Cable-free. Solder-free. I made it at TechShop.
Arduino PWM LED Dimmer - 6x10W LED
Posted:Feb 19, 2009
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