"Switch Lighting claims to have solved all of those problems. When I arrived at Switch, Brett Sharenow, the company's chief strategy officer, showed me two lamps. Inside one was a standard 75-watt incandescent bulb. Switch's 75-watt replacement bulb, which uses only 16 watts of power, was plugged into the other. The lampshades prevented me from seeing the bulbs directly—I couldn't tell which lamp contained which bulb. When Sharenow turned on the lamps, the light from each lamp looked identical. The moment was completely undramatic, and that was the point. Switch has spent years developing bulbs that produce something thoroughly unexceptional—light that looks exactly like what we're used to."
Incandescent bulbs are being phased out. CFL bulbs have mercury in them. LED lights are the future, using a fraction of electricity required for incandescents. They even save money in the long run!