"...Combining warm-hued LED and metal-halide fixtures, Ms. DiMaggio lighted previously dark areas of the building and removed unsightly shadows cast by aging traditional lamps. “One person said, ‘I feel like I’m in Paris when I walk by the building,’ ” Ms. DiMaggio recalled. Using LED-based fixtures, Ms. DiMaggio said, she cut energy consumption for lighting by 43 percent, saving $6,654 a year. With an expected life of 50,000 hours, compared with the 2,000 hours typical of incandescent bulbs, the lights have also lowered maintenance costs. Although they have yet to substantially influence the residential lighting market, light-emitting diode lamps are increasingly being introduced in commercial buildings. Manufacturers are creating lamps that are reliable, color-accurate and at least as efficient as incandescent or compact fluorescent lights...(Click here read rest of article)