Apr
Light emitting diodes, or LEDs, are becoming increasingly popular. It is easy to see why, too: LEDs last up to 10 times longer than CFLs, they are extremely durable with the epoxy exterior, they are designed to operate with just 30-60 milliwatts of power, and they don’t get hot (they create only 3.5 Btu per hour compared to 85 Btu per hour for incandescent light bulbs). They have, in other words, a higher ratio of light to heat than incandescent light bulbs. LEDs are replacing more traditional lights in many cities because electricity costs can be lowered by 80% or more. Because of their greater efficiency, longer life, and minimal power requirements, they are an excellent option for houses and buildings powered by solar panels. However, LEDs are still quite expensive: replacing a regular 25 watt incandescent light bulb with a LED equivalent can cost $40! The price is going down as the price of semiconductor material drops. The savings over time though, are wonderful! If properly installed, LEDs can last for decades.