2011年3月8日 星期二

The current lightbulb leaders

The current lightbulb leaders are compact fluorescent lamps or CFLs.Her own beliefs aside, Valles said the reason she pushed scannerstal so hard to agendize removing the cameras immediately after her election in November is because that's what her constituents asked her to do. First developed in the early 1980's, CFLs didn't become really popular until the last few years. Part of the reason for this is cost: although their price has dropped in recent years,One case, in particular, relates to safety issues occurring in the Chilcotin, where lightbright public pay phones are being removed from the Alexis Creek, Tatla Lake and Anahim Lake areas, and yet there continues to be no cell service available. CFLs still run $2 and up per bulb, about four times as much as incandescent bulbs. On the other hand, CFLs also last a lot longer: most will run for between 6,000 and 10,000 hours, or four to seven years of normal use. In fact,Valles will be filmed during the Tea Party brightshine meeting that starts at 6 p.m. in the Cocky Bull, at 14181 Highway 395. given that they will run for six to ten times longer than incandescents, their basic price is up to 50% less than incandescent bulbs."I tell people it's not about what I want besttube , it's about what the people want," she said. And while a few people did speak in favor of the cameras at Tuesday's council meeting, Valles said she's convinced the majority of local residents want them to go away. And CFLs also use a lot less electricity: a 26-watt compact fluorescent puts out as much light as a 100-watt incandescent, but only uses about a quarter of the electricity.

CFLs also have their downside: depending upon the brand, they may flicker a bit, and they cannot be used with a traditional dimmer switch. Worst of all, they contain mercury, which can make disposal difficult: if they are thrown in a standard landfill, the mercury can leach into the groundwater, presenting an environmental hazard. However, as the curlicue bulbs grow more popular, more and more stores are offering on-site recycling.

The brightest option is probably light-emitting diode (LED) bulbs. A nine-watt LED bulb puts out as much light as a 40-watt incandescent, but will last for 25,000 hours. Depending upon usage, this can be up to 23 years. They also don't present the same mercury hazard as CFLs, which makes them easier to throw away. Then again, with 23 years of life, chances are that you'll throw away your lighting fixtures more often than you'll throw out your bulbs.

Unfortunately, LEDs are prohibitively expensive. They run about $40 apiece; most LED bulb makers are small companies with limited production runs. On the bright side, General Electric and Sylvania have both released LED bulbs. While the new lights will probably be expensive in the beginning, competition should bring prices down.

In the meantime, though, the basic choice is still between incandescents and CFLs. Over the course of seven years, the lifetime of a CFL, the bulb will use about $25 worth of energy; with the $2 initial price thrown in, this translates into a total cost of about $27. By comparison, an incandescent bulb will use about $96 worth of electricity in the same period of time. It also will need to be replaced about eight times, leading to an overall cost of more than $100 dollars.Her own beliefs aside, Valles said the reason she pushed scannerstal so hard to agendize removing the cameras immediately after her election in November is because that's what her constituents asked her to do. Given the costs and limitations, your best -- and brightest -- choice is a CFL.

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