LED basics: from the beginning to the
Invented in the early 20th century, light-emitting diodes (LEDs) have only begun to be used widespread in the last 50 years. As a relatively new technology, at least in most homes, there are many questions about LED lighting. What are LEDs and where do they come from? What are the benefits and who uses them? By learning the basics, benefits, and current applications, you can determine whether using LED lighting is beneficial to you.
How they work
LED lights use two semiconductor materials, allowing current to flow in one direction, emitting light more efficiently. These materials were not always available to the general public. When it was first introduced in 1927, LED lights were only used as indicator lights for calculators, flashlights and other electronic devices. They were expensive to produce and were therefore never used for daily lighting applications. However, in 1976, improvements in brightness and additional colors paved the way for wider use of LEDs as a light source. Since then, LED lighting has evolved to the point where today, LED lights are replacing traditional lighting sources.
The use of LED lighting over traditional lighting sources has many advantages, including efficiency, performance and other environmental benefits.
Traditional lighting sources such as incandescent and fluorescent bulbs are highly inefficient, typically using more energy to produce smaller amounts of light compared to LED sources. This is measured by the power of the focus and the amount of lumens it produces. Power translates into the amount of energy the bulb consumes to produce light, the higher the power, the more energy a light bulb consumes. Lumens are the amount of light a light bulb produces. The higher the lumens, the more light the bulb can produce. For example, your average 40W incandescent bulb can produce only about 450 lumens, while a 35W LED bulb can produce around 2575 lumens. An LED bulb can be up to 90 percent more efficient than traditional bulbs. This allows LED lights to provide up to 50,000 hours of illumination, easily exceeding the traditional lifespan of around 1000 hours.
Many people are used to buying bulbs by power and know how much light to expect from a 40, 60 or 100 watt bulb. When you see lumens on the new label, it may not be easy to translate that into the light you're looking for. The Energy Star program created this useful table.
Its efficiency also results in low heat production that prevents socket failure. Fewer socket failures means fewer rebulbutions, a labor-saving, cash-efficient solution for light bulb replacement.
What LEDs Look Like
LED lighting looks aesthetically better than traditional lighting sources. With the evolution of Chip on Board (COB) technology, LED lights prevent light pollution and only illuminate the necessary areas. The light itself is cleaner than traditional flicker-free lights. In addition, the LED lights turn on instantly instead of a slow start-up. They can be adjustable and programmable, and produce a truer and whiter light than incandescent.
LED basics: from humble beginnings to today's applications
Are they environmentally friendly?
LED lights are also more environmentally friendly than their counterparts. Its efficiency means less maintenance and less money spent on replacement bulbs; reducing manufacturing, shipping and other environmental costs. In addition, unlike CFL bulbs, LED lights do not contain mercury or other environmentally harmful substances.
LED lighting is fast becoming the best choice for lighting installations across the country. LED lights can be seen replacing traditional lighting sources throughout the market. Its uses range from landscape lighting to flood lighting. Many different applications use LEDs because longer service life leads to lower labor costs, better performance and the aesthetic advantages of light. While one may think that only new construction projects can take advantage of LED lighting is simply not the case. LED upgrade kits allow you to replace traditional lights in your home or in an old project with new LED lights. With so many advantages over traditional lighting, it's time for LEDs to shine!