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Shopping for LED bulbs? Take a few tips from some home-testing

Over the past 18 months, I have been home-testing LED light bulbs that are intended to replace the residential lighting that we all knew and loved — the 60-, 75- and 100-watt incandescent bulbs that are no longer manufactured. The good news here, especially for all those homeowners who have not yet embraced the new lighting technology, is that the replacement LEDs, known in the lighting industry as the A19s and A21s, just get better and better. (A19 is the lighting industry’s designation for the shape and size of the iconic 60-, 75- and 100-watt incandescent bulbs. The LED 60- and 75-watt equivalents are the A19 size, while A21 is the designation for the larger 100-watt equivalent LED bulb.)

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