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Consumers may have noticed a major change in their local hardware store’s light bulb section. These days, more and more LED products are showing up on the shelves, while traditional incandescent light bulbs are slowly being phased out. Some months into the new year, you will notice a big change in the lighting aisle of your local retailer or big-box store. The supply of 40- and 60-watt incandescent bulbs that accounted for 80 percent of the residential lighting market in the United States and occupied the most shelf space will be low. Their production will cease Jan. 1. Once the existing inventory is sold out, it will be gone for good. These iconic bulbs, known as the A19 bulb in the lighting industry, have been fixtures in American households for more than 100 years. But, despite their long history of reliability and low cost, they are hugely inefficient. Only 10 percent of the energy consumed by an A19 incandescent is given off as light; the other 90 percent is heat. For this reason, the Energy Independence and Security Act of 2007 mandated their phaseout. The 100-watt bulbs were phased out in 2011, then the 75-watt bulbs in 2013. Read more on Concord Monitor.  

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