Halogen lamps are nice and bright, but they do consume a lot of power. Here’s a quick DIY tutorial to help you convert one to a super eco-friendly LED version. You’ll need some basic electronic skills. Oh and make sure to use decent LED bulbs, not the cheapo fade fast variety.
How efficient is LED lighting? The LED array we are going to build for this project consumes about 2.5 watts it will run 400 hours on 1 kilowatt hour of electricity. With average use it would consume about $0.21 worth of electricity a year.