separating myth from fact on cfl and led light bulbs: five concerns addressed
A recent post in the United StatesS. phase-out of 40-and 60-watt low- The high-efficiency incandescent lamps officially listed on January 1 have aroused strong response from readers. Many commenters were critical of the ban, which was set by legislation passed by Congress in 2007 and signed into law at that time -- President George W. Bush. Â ( View related posts:S. Phase- Incandescent lamps continued to be eliminated in 2014, 40-, 60-Watt Bulbs. âx80x9d) Although a recent poll shows that 65% of Americans plan to switch to electricity Energy-efficient lighting such as compactCFL), light-LEDs (LED) Or halogen lamps, rather than hoarding old incandescent lamps, many readers are deeply concerned about what they consider to be the safety risks, high cost and poor performance of alternative technologies, and sometimes even completely angry. ( Take the quiz: knowledge about energy you don\'t know Efficient lighting. âx80x9d) We are looking at five of these questions here. 1. The energy- It\'s too expensive to save on replacement. One reader complained that he had bought a replacement for a 60-year-old Wal-Mart\'s Watt incandescent lamp Was shocked by the price. Forget it, he wrote. I have stored five dozen old bulbs. Indeed, CFLS are usually several times as many as the old CFLS -- Stylish incandescent lamps and leds bulbs that retail less than $1, although the price has fallen, the price is still more than 10 times more expensive. But in the long run, insisting on the use of old bulbs will actually cost consumers more. Noah Horowitz, director of the Energy Efficiency Center of the Natural Resources Conservation Commission and environmental engineer, said in an email that because CFLs uses much less electricity and lasts longer, the person on the switch will save $30 to $50 on the bulb spys sixto ten-year lifespan. ( See related: bulb savings calculator. âx80x9d)2. CFL bulbs are dangerous because of their mercury content. Many readers are shocked that the CFL bulb contains harmful mercury and are worried that it will be exposed if it breaks down. One commenter pointed out that I have six children. I can\'t risk these dangers in my house! But studies have shown that while CFL bulbs do require more careful treatment and disposal, the danger may be blown out of proportion. According to 2008 articles in the journal Environmental Health outlook on this issue, CFLs typically contain three to five mg of Mercury, it\'s about ten percent of the mercury content in some of the older thermostats that can still be found in some homes. The researchers found that when the bulb broke, only a small part was actually released. For example, in a study published in the journal Environmental Engineering Science in 2011, Lee Yadong and Lee King, a researcher at Jackson State University, reported that even if it was left unattended for 24 hours, A broken bulb is released from 0. 04 to 0. 7 mg of Mercury The researchers found that the amount of mercury vapor in the room took several weeks to reach levels that were harmful to children. This can be avoided by fast tracking the USS. Simple procedures for the safe cleaning of environmental protection agencies. Also, Horowitz suggests: when your CFL stops working, put it in a Ziploc bag and bring it to Home Depot or low e s, who will recycle it for you for free Another way to view the mercury content of CFLs: reducing power consumption by using more efficient lamps may help reduce the amount of mercury emitted by coal into the atmosphere Burning power plants, the largest single source of mercury pollution in the air. ( See relevant stories: The study found that the green light bulb label would deter conservative buyers. âx80x9d)3. CFL bulbs are dangerous due to UV leakage. Two readers warned about the 2012 study by researchers at the University of Shixi, which found that most CFL bulbs were defective and if one person was directly exposed to close range, UV radiation can leak to levels that can damage skin cells. The study\'s lead researcher and professor of materials science and engineering, Miriam Rafalovich, told National Geographic News that she believed that the defect occurred during manufacturing or transportation. This is something that can be remedied, she said. At the same time, she advised the user to shield the bulbs inside the fixture from keeping them one to 2 feet away, avoiding staring directly at the CFL bulbs. This proposal is basically in line with the United States. S. Safety advice from the Food and Drug Administration. A 2009 Canadian government study found that at a distance of more than 11 inch, UV radiation from CFL was more than that from conventional incandescent lamps. From the National Institutes of Health, here is the analysis of Shixi research and other studies on CFLs and ultraviolet radiation. 4. The new bulb cannot be used with the dimmer switch, nor can it work effectively with the dimmer switch. The same is true for regular CFL bulbs sold in stores, Horowitz said, but most LED bulbs on the market today are actually dimmable. He advised consumers to look for LEDs that indicate the use of dimmer switches in packaging. 5. CFLs do not light up or are too dark at cold temperatures. Horowitz said this is a reasonable criticism of the CFL, which is difficult to start in an extremely cold climate. He suggests that if your bulb is located outdoors, like in the lamp on the porch, you want an energy-efficient bulb, go get the led.