12 Advantages of LED Lighting
So, why choose LED lighting? Well, because of such LED benefits as money, environment, quality and much more...
LED lights may seem pricey at first glance, but there are many advantages of LED compared to traditional incandescent light bulbs. If you are still hesitating regarding investing in LED lights, read this articles first and then decide!
The two main advantages of LED lights are that they are i) environmentally friendly and ii) an economically sustainable lighting option. We'll explain why these are two major advantages below.
In addition, there are a lot of quality related benefits too, such as the efficiency, quality of light, lifespan and more. But first, let's start with what can clean not only our earth, but also your concience - the environmental impact.
LED lighting is an environmentally friendly option
A single kilowatt-hour of electricity will generate 1.34 pounds (610 g) of CO2 emissions. Assuming the average incandescent light bulb is on for 10 hours a day, a single 40-watt incandescent bulb will generate 196 pounds (89 kg) of CO2 every year. The 13-watt LED equivalent will only be responsible for 63 pounds (29 kg) of CO2 over the same time span. A building's carbon footprint from lighting can be reduced by 68% by exchanging all incandescent bulbs for new LEDs.
LEDs are also non-toxic unlike the more popular energy efficient Compact flourescent (CFL) which contains traces of harmful mercury. While the amount of mercury in a CFL is small, LEDs have no mercury and therefore introduce no such toxins into the environment which is preferable to even the small amounts of mercury found in CFLs.
LEDs are an economically sustainable lighting optionLED light bulbs are becoming a more cost-effective option for lighting a home or office space because of their very long lifetimes (35,000-50,000hrs vs. 1,000-2,000 hrs for incandescents or 10,000-15,000 for CFLs) and increased efficiency. With high power LEDs the light is also brighter and more "user" friendly than in the past.
In 2008, a materials science research team at Purdue University succeeded in producing LED bulbs with a substitute for the sapphire components which are the expensive part of the production cycle. The team used metal-coated silicon wafers with a built-in reflective layer of zirconium nitride to lessen the overall production cost of the LED. They predict that within a few years, LEDs produced with their revolutionary, new technique will be competitively priced with CFLs. The less expensive LED would not only be the best energy saver, but also a very economical bulb.
LEDs have better quality in many ways
There are many quality related advantages of LED lighting:
Efficiency: LEDs produce more light per watt than incandescent bulbs. Actually, the efficacy of the newer LED light bulbs is more than five times higher than comparable incandescent bulbs. In other words, led light bulbs use only about 20% as much electricity to produce the same amount of light. However, because led bulbs direct a larger percentage of light where it is needed, in many applications they are as much as ten times as effective as incandescent bulbs, reducing energy use by 90%.
Color: LEDs can emit light of an intended color without the use of color filters that traditional lighting methods require. This is more efficient and can lower initial costs.
Size: LEDs can be very small (smaller than 2 mm2 and are easily populated onto printed circuit boards.
On/Off time: LEDs light up very quickly. A typical red indicator LED will achieve full brightness in microseconds. LEDs used in communications devices can have even faster response times.
Cycling: LEDs are ideal for use in applications that are subject to frequent on-off cycling, unlike fluorescent lamps that burn out more quickly when cycled frequently, or HID lamps that require a long time before restarting.
Dimming: LEDs can very easily be dimmed either by Pulse-width modulation or lowering the forward current.
Cool light: In contrast to most light sources, LEDs radiate very little heat in the form of IR that can cause damage to sensitive objects or fabrics. Wasted energy is dispersed as heat through the base of the LED.
Slow failure: LEDs mostly fail by dimming over time, rather than the abrupt burn-out of incandescent bulbs.
Shock resistance: LEDs, being solid state components, are difficult to damage with external shock, unlike fluorescent and incandescent bulbs which are fragile.
Focus: The solid package of the LED can be designed to focus its light. Incandescent and fluorescent sources often require an external reflector to collect light and direct it in a usable manner.
So now you know more about the advantages of LED lights and also knows more about how much energy they save compared to ordinary light bulbs. To learn more ways to reduce energy consumption and costs, browse the articles below.
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