Tangential comment: Hopefully the industry will develop a few standard replaceable LED "light bulb" types. Right now, the only way you can use LEDs for lighting are to: a) Buy a fixture with non-replaceable LEDs built in. So, you'll be buying a new fixture if any electrical component fails, which is pricey, wasteful, and even more problematic if you have a bunch of them and want them to all look the same. b) Buy a fixture that takes a standard screw-in Edison bulb and put an LED bulb in it. This is a pretty good approach, but limits the design to the styles needed to accommodate those bulbs (e.g. no 1" thick flat-panel lights, etc). Also, putting the electronic driver circuit near the warm LEDs isn't ideal. c) Same as "b", but using a 48" florescent fixture as the host for the LED replacement bulb. Same negatives as "b": We're stuck with the form-factor of the old florescent tube bulbs. For options B and C, I'm pretty sure LED replacement bulbs will be available for many years due to the huge number of screw-in and tubular florescent fixtures.