Light bulb technology is changing almost as fast as the speed of light.
Just like the Moore’s Law, which says computer performance doubles every 18 months, light bulbs have Haitz’ Law, Brian Clark Howard said.
Howard wrote Green Lighting, and said the cover of his book was designed very last minute. As he was ready to publish in the book, new LED technology started coming out for bulbs. He didn’t want to put a CFL bulb on the cover because it will soon be outdated like old-school filament bulbs. But he had trouble even getting a high resolution image of an LED bulb because it was so new.
LED bulbs are artifically expensive right now, Howard said, but once they enter mass production, they will only be $2 or $3 each in a couple years.
LED bulbs last 50,000 hours and cost about $20.