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Sunday, September 27, 2009
Are LEDs The Latest Energy Efficient Lighting Option?
Compact fluorescent bulbs are not the only option when looking for energy-efficient lighting. LEDs, or light emitting diodes, are long lasting, energy-efficient options as well. LEDs are semiconductors that glow when an electric current runs through them. They have been used in cars and electronic devices for years, so the technology is not new.
LEDs are safe and last longer than both incandescent bulbs and CFLs. One LED can last 50,000 hours and save $50-$90 over the life of the bulb compared to incandescent bulbs. LEDs have no fragile parts, resist breaking, and can be used in cold weather. They are compact and low profile, and are good at directing light where it is needed. LEDs do not require warming and therefore illuminate immediately when switched on. There are no infrared or ultraviolet radiation emissions and no toxic chemicals.
Makers of LED lights have been working hard to reduce the cost of making the bulbs, and it is believed that in a few years the cost will be similar to CFL bulbs. LED lights have already become very popular for outdoor lighting, as they can be used in cold weather and don’t break. The average carbon footprint of a building using LED lights can be reduced by 68% by changing out incandescent bulbs for LEDs. For those who are eco-conscious it is well worth the slightly higher purchase price.
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