Weekend Project: LED Projector Bulb
Jake Bechtold | October 13, 2007Ever since I started doing technical work for my Church, I’ve learned one thing: Projector bulbs are expensive to replace. Why spend over $500 for 2000 hours of use, when you can make an LED based projector that will last at least 15 times that and cost under a hundred.
All you need is an LED bulb and a constant-current circuit to make this work. For details, check out the link. Enjoy, and have fun!
Make your own LED Projector Bulb [Instructables]