Years ago, Bill Gates looked at the computer revolution and noted that, “If GM had kept up with technology like the computer industry has, we would all be driving $25.00 cars that got 1,000 miles to the gallon.” Today it would be a flying car running on sunshine that costs a dime. But in many ways, the LED revolution has been just as breathtaking. I couldn’t help but smile when I read about a recent deal from a certain omnipresent online company, offering a dozen 800 lumen Philips LED bulbs for twenty-two bucks. This is truly extraordinary, a transformation that we have watched in in real time on TreeHugger. The first LED bulb we showed on TreeHugger in 2007 punched out 594 lumens and cost $70. The post got 174 comments. Then TreeHugger emeritus Mike spent a few years reviewing every new bulb; I loved his review of the Philips AmbientLED 12.5-watt A19 LED lightbulb: “A Bulb from the Future! It Looks Like it Belongs on a Spaceship!” Exciting times. It looked weird, cost $40, and was rated for 25,000 hours. The two-buck Philips bulbs selling today are rated for ten years, give the same 800 lumens running at 8.5 watts. About the same time, Mike reviewed GE bulbs with big rad...