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How Do LED Lights Work, and Why Do They Save Energy?

First, let’s delve into how LED lights work and how much energy they save. Some LED lights may look like regular light bulbs, but their design has some key differences. These lights work via an electrical current that passes through diodes to cast light. In contrast, standard incandescent lights use heat to produce light. An incandescent lightbulb may use 60 watts of energy to light up a room. Meanwhile, an LED light can do the same, but by using only 10 watts.

Some light fixtures now come with LED lights already built in; these are sometimes called integrated LEDs. They can last up to 50,000 hours (yes, you read that right!) and will illuminate any room they’re placed in with the touch of a switch or button. They also contain no toxic elements, like mercury, which is present in most fluorescent lighting used in offices and commercial spaces. This helps to protect the environment from additional toxic waste upon disposal of the bulbs.

When LED lights first hit the market in the 1960s, they were a whopping $200 per bulb. These days, however, you can find a pack of LED bulbs for less than $20, depending on the number of lights and the wattage you need. Even though incandescent lights often cost even less, they don’t last as long. You’ll likely need to replace them more often than LED lights, which can end up costing more in the long run. According to the Consumer Federation of America, switching to LED bulbs can save you around $1,000 over a 10-year period.