1. Incandescents are dead. As manufacturers phase out traditional light bulbs that don’t meet new federal standards for efficiency, the first to go are 100-watt bulbs in 2012. The phase-out continues with 75-watt bulbs in 2013 and 60-watt and 40-watt bulbs in 2014. You could substitute halogens or compact fluorescents (CFLs), but LEDs will take you straight into the future of lighting. LEDs (short for light-emitting diodes) have been used in flashlights and reading lights for years.
2. Long live LEDs. Well-designed and -manufactured LED bulbs are rated to last 25,000 hours, or at least 22 years based on three hours' use a day. By comparison, incandescents last just a year, and CFLs from five to nine years. LEDs use about 80% less energy than incandescents to produce the same amount of light, as measured in lumens. (CFLs use about 75% less energy; halogens, 30% less.) The Department of Energy says that with rapid adoption of LED bulbs, electricity demand for lighting in the U.S. could be reduced by one-third by 2027, eliminating the need for 40 new power plants.
3. They're not cheap. The cost of an LED bulb—$15 to $40, depending on the equivalency—may give you pause. But the cost per bulb has fallen from just two years ago, and it will continue to fall with improved technology and design and ramped-up production, says Vrinda Bhandarkar, director of research for LED lighting with Strategies Unlimited, a market-research company in Mountain View, Cal. In an analysis of all types of light bulbs, the DOE found that CFLs (which cost about $5 per bulb) beat LEDs by only $10 in net savings. If your local utility offers a rebate—typically $10 to $15 per LED bulb—you could close the gap.
4. What you'll like. LED bulbs can be designed to cast a warm glow, like incandescents, or a bright, white light. They emit no ultraviolet radiation and produce very little heat. Flip a switch and the bulb comes on instantly and fully. When dimmed (the bulb must be compatible with the dimmer in your fixture), it won't hum, flicker or change color. LEDs are resistant to vibration and breakage, and they come in a variety of specialty styles and shapes. Replacement bulbs for lamps are available in 40-, 60- and 75-watt equivalents; 100-watt equivalents are likely by early 2013.
5. Research your investment. Some manufacturers, among them General Electric, Osram Sylvania and Phillips, have Energy Star endorsements. Also, look for manufacturers and retailers that participate in the DOE's LED Lighting Facts program (see the fact sheet). The bulbs should carry a warranty of three to five years.
6. Start slowly. Try using LED bulbs in hard-to-reach spots or heavily used areas, such as the kitchen, family room and porch. The warmer the light, the more expensive the bulb, so for the front porch consider a bulb with a bluer tinge than you'd like in the living room. And LEDs may seem brighter than the incandescents they're designed to replace, so instead of a 60-watt-equivalent bulb, try a less-costly 40-watt-equivalent. You may ultimately need to buy and try a few LEDs to find a model that works for you.
This article first appeared in Kiplinger's Personal Finance magazine. For more help with your personal finances and investments, please subscribe to the magazine. It might be the best investment you ever make.
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