Light Emitting Diodes (LEDs)
The light-emitting diode (LED) produces light when a voltage is applied to negatively charged semiconductors, causing electrons to combine and create a unit of light (photon). It is basically a chemical chip embedded in a plastic capsule. These bulbs are quite small, and are sometimes combined into one whole light bulb. Some different types are Application Specific LED (AS-LED), High Power LED, and more. They are currently being developed for more applications within the house. They are used for many things, such as industrial and commercial lighting, under-cabinet lighting, recessed down lights, and more. LED technology is quickly developing, leading to more products and improved manufacturing efficiency, which also results in lower prices. LEDs are much more safer than some other light bulbs because they are cool to touch. They are more sturdier and durable since they are made with epoxy lenses, which are more resistant. It is also a lot easier to install. LED light bulbs are the most energy efficient and longer lasting light bulb today, residential LEDs using 75% less energy and lasts 25 times longer than incandescent light bulbs. According to www.energy.gov, by 2027, widespread use of LEDs could save about 348 TWh (compared to no LED use) of electricity. That can also add up to total savings of more than $30 billion at today's electricity prices.