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LED stands for Light-Emitting Diode. It is assembled into a lamp (sometimes called a light bulb) for use in lighting fixtures.
Two close-up views of a 3-watt LED Lamp Technically speaking an LED is a two-lead semiconductor light source that is a p-n-junction diode. When voltage is applied to the leads, electrons are able to recombine with electron holes releasing energy in the form of photons thus emitting light. The color of the light is determined by the band gap of the semiconductor. In layman's terms an LED is a solid state alternative to generating light. There are no glass bulbs, no gasses, no mercury and no filament. Light is produced very efficiently and with much less heat than standard incandescent bulbs with filament coils. LEDs are more durable and less fragile than standard glass bulbs with thin wire filaments. Instead of running a current through a filament, LED chips create light using electroluminescence. Light created through electroluminescence is much more efficient than light created through incandescence (standard light bulbs), or chemiluminescence (chemical reaction) or other methods such as sound or mechanics.
A 5mm round ("normal" type) LED drawn in Solid Edge and Inkscape. LED chips consist of a semiconductor die in a reflective cavity that is mounted on an 'Anvil'. The Anvil is mounted adjacent to (but not touching) a 'Post' and connected by a wire. The Anvil and Post together are referred to as the 'Leadframe' and are mounted on silicone sub-mounts. This assembly is the 'heart' of the LED bulb. The assembly is connected to a positive anode and negative cathode which supplies power to the unit. Everything is mounted to (and held together by a base that is generally composed of epoxy and/or silicone. An epoxy lens/dome covers the entire assembly. Multiple LED assemblies are generally combined to create a 'bulb'. The lumins (brightness) of the bulb is mostly determined by the number and design of the LEDs.
LED is poised to fundamentally change lighting in the United States. The U.S. Department of Energy has estimated that by 2017 total LED lighting will provided a savings of more than $30 billion at today's electricity prices¹. We've written articles about the benefits of LED lighting and you can read one of them here. The outdoor lighting industry is at the forefront of the switch to LED. Now you'll be able to answer the question, what is an LED bulb. If you'd like to learn more or see how LED can brighten your life give us a ring. Visit our web site at www.AbulousLighting.com, call/text 662-Abulous (662-228-5687) or email contact@abulouslighting.com
1. LED Lighting ~ Energy.gov - U.S. Department of Energy.
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Absolute Lighting installed my outdoor flood lights 2 years ago and they are beautiful! They did such a great job that I used them to setup and take down the Christmas lights for the past 2 years. I would highly recommend them. Frank always responds to questions and automatically puts me on the schedule for set up and take down of the Christmas Lights.
We love Abulous lighting and have been using them for years They are very responsive and professional and will come back no questions asked for any follow up work Good pricing and highly trustworthy Frank, the owner, is a true stand up guy. I recommend without reservation
Frank and the team at Abulous were great to work with. They came out and retro-upgraded some previous lighting that we had done a few years back and made it look as seamless and continuous as possible. They also worked with us on the best (& most economical) way to light up a hard to reach area of our yard. They also followed up with us after we had another group of workers "disturb" some of the lighting wires and came back out and fixed everything back up again. Very friendly, dependable local resource who do great work. Highly recommend.
After reviewing multiple companies we contracted with Abilous Lighting to create outside accent lighting for our home, backyard patio, walkways, & fire pit. Their ideas and design were the best! It was a pleasure working with Frank Hasty, who did the design, and his crew of Brandon & Rusty who performed the work. All were excellent to work with. We are very happy with Abulous Lighting.