Posted on: November 10, 2016
By: Alan O'Neill
Posted in: Electrician
LED light bulbs produce visible light when an electrical current is passed through them, just like other light bulbs. However, a “white” LED light does not exist. To emit a white light, different color LEDs are mixed or covered with a material that converts the light (this is the yellow material you sometimes see on LED products).
The pros and cons of LED lighting.
What are LED light bulbs?
LED light bulbs produce visible light when an electrical current is passed through them, just like other light bulbs. However, a “white” LED light does not exist. To emit a white light, different color LEDs are mixed or covered with a material that converts the light (this is the yellow material you sometimes see on LED products). Common LED colors include amber, red, green, and blue, which makes LEDs an excellent option for uses such as traffic lights or electronics’ power buttons
There is a lot of misinformation regarding LEDs in the marketplace. This article will endeavor to explain the terminology and benefits of LEDs, expose the common myths and provide potential customers with information to make an educated decision when purchasing LEDs for the home.
LEDs are a lot more complex than the traditional incandescent light globes that we have grown up with. Incandescent globes were cheap and easy to install but they were not energy efficient and did not have a very long lifespan. So to understand LEDs we first of all need to understand some of the technology and the terminology.
Often specialists in certain fields use terms which the general consumer does not understand. This has traditionally been the case in the computer, telecommunications, and home entertainment industries. It is now the case with leds. LEDs are not like traditional incandescent lighting and can often require a transformer to operate at low voltage. Increasingly LED fixtures are being manufactured for line voltage and thus do not require a transformer while still being incredibly energy efficient.
Lifetime: The lifetime of a traditional light source refers to how long it will take to burn out. When speaking about LEDs it explains how long the light will last above 70% of its specified light output.
Directionality: Unlike traditional lights, LEDs do not emit light in all directions. They require lenses and reflectors to direct light onto the desired surface. Thus, it is important to know what size area or surface you want to illuminate before purchasing any LED fixture or globe.
Colouring: LEDs have an amazing ability to show a surface or items in its true color or in a color of your choice. This means the light emitted can be a white light, warm white (yellowish), cool white or a mixture of the three primary colors. There are three main indexes which are used when discussing the coloring properties of a LED.
There are many benefits of installing LEDs but like any technology the benefits are only realized when the product is suited to the application. The main benefit of LEDs is that they can be five times more energy efficient than traditional incandescent and halogen lights and they can have a much longer lifespan. This means they are much better for the environment. Not only do they use less power and don’t have to be replaced as often, they do not contain mercury like fluorescent lighting which requires specialist recycling. Call (713) 812-7070 us for your home service and repair needs.
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