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Posts Tagged ‘Low Carbon’

Energy adviser: LED lighting not yet practical for many uses

26 Mar

With a countdown under way to eliminate incandescent light bulbs from store shelves by Jan. 1, what should consumers know about LED lighting as an alternative in the home?

The Energy Independence and Security Act of 2007 set in motion a transition mandating that all light bulbs use 30 percent less energy than current incandescent bulbs by 2014.

As part of the change — between Jan. 1, 2012, and Jan. 1, 2014 — all conventional incandescent light bulbs with ratings between 40 watts and 100 watts will be gone from the U.S. market. The change does not mean that consumers can’t use incandescent bulbs, just that retailers can’t sell them.

Replacement options from manufacturers come in the form of compact florescent lamps, called CFLs, and light-emitting diodes, called LEDs. This column focuses on LED technology.

An LED is a semiconductor light source that releases energy in the form of photons across a luminescent spectrum. According to industry experts, LEDs offer advantages over incandescent light sources because of their lower energy consumption, longer lifetime, improved robustness, smaller size, faster switching, and greater durability and reliability. However, LEDs powerful enough for room lighting are relatively expensive and require more precise current and heat management than compact fluorescent lamp sources of comparable output.

The advantages of LED lights are that, in addition to their higher energy efficiency, they have a longer life, are rugged and do not contain mercury.

Their disadvantages? More expensive than incandescent bulbs or CFLs and their light output is limited to lower-light-level applications.

According to a report by Portland General Electric, “Because LEDs cast light in one direction at a narrow angle, they are not yet practical or cost effective for general illumination.” In addition, their heat sensitivity can hurt performance and longevity.
Consumers must be informed

Bob West, an energy adviser with Clark Public Utilities in Vancouver, acknowledges that there are still industry “issues” with LED products. Consumers must study up on what LED products are worth the investment and where they best should be used.

To assist consumers, as well as manufacturers and retailers, the U.S. Department of Energy has established a website at http://www.lightingfacts.com. The DOE also has developed a new Lighting Facts label for LED lighting.

Why? “The rapid growth of LEDs has resulted in an increasing number of new products on the market,” according to the DOE. “While many of these products showcase the energy-saving potential and performance attributes of LED lighting, under-performing products are also appearing in the market. Since bad news travels fast, such products could discourage consumers from accepting this new technology.”

When CFLs came to the market a few years ago, the same product challenges and slow market acceptance occurred, the DOE said.

To help consumers sort through the information, new Lighting Facts labeling has been introduced to help “evaluate product performance against manufacturer claims.”

Lighting Facts labeling should not be confused with Energy Star ratings. While Energy Star differentiates products that are above the minimum standards, the Lighting Facts label is an industry tool to help retailers and other buyers better select and understand the products they are selling, DOE’s website said.

“Armed with this information, retailers and other industry stakeholders can keep poorly performing products from reaching their shelves,” the agency said. The good news is that the technology is improving rapidly. New energy-efficient consumer LED lamps have been announced from three of the lighting industry’s largest producers, Osram Sylvania, Philips, and General Electric. As with many new technologies, mass production will mean lower costs and improved performance of LEDs over the next several years.
Certain uses make sense

Clark Public Utilities’ West said that in certain lighting applications in the home LEDs make sense, such as in-can lights at the top of a vaulted ceiling. But because of their higher cost, LEDs are really no more economical than a fluorescent in most applications. To see that you are getting the most for your money, make sure the LED products you buy have been registered and approved to use the Lighting Facts label. This labeling becomes effective on July 1. For more information, go to http://www.lightingfacts.com, click on “consumers.”

Energy fact: Lighting consumes about 6.5 percent of the world’s energy supply, according to a report at http://www.energymusings.com.

 
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Benefits of LED Lighting

28 Feb

LED lighting systems use up to 90% less electricity than standard lighting products. It is the most cost effective and energy efficient lighting on the market.
home lighting

The benefits of LEDs are:

High Efficiency: These products direct the light in a very specific way, ensuring there is no wasted light onto ceilings and walls where it is not required.
Extremely Vibration Resistant and Robust: LEDs are a solid state device which means the light component is encapsulated within a resin substance. Because of this, they can withstand extreme vibration when they are in use, unlike filament lamps that when heated, become extremely vulnerable to damage if shaken.
Long Lamp Life: Due to the inherent nature of LED lighting products, they have a lamp life of around 50,000 hours. This is 20 times the life span of an incandescent lamp, 12 times the life span of a halogen lamp and 3 times the life span of fluorescent lamp.
Low Power Consumption: LED’s are a very energy efficient lighting option because they utilize the input power more efficiently to generate light rather than light created by heat. This allows LED lighting products to produce a much higher lumen output per watt.
Low Maintenance and Lamp Replacement: As LED lighting products have a long life span there is little need to replace them as often, therefore saving on maintenance costs.
Reduced Carbon Footprint: LED Lights consume up to 90% less power than other lighting methods. This has a significantly positive effect on carbon emissions, helping to make a more sustainable future for generations to come.
Low Heat Generation: Standard lighting products generate a substantial heat, usually around 200 degrees C, making it a dangerous option when used around flammable materials, which is why fires caused by halogen down lights in homes are not uncommon. LED lights generate very little heat; therefore the risk of fire is virtually nonexistent. In fact, you can comfortably hold your hand on an LED fitting, even after it has been running for several hours. Try doing that with a halogen lamp even after 1 minute!!!
Environmentally Safe: LED lights contain no harmful substances such as Mercury, which is found in all fluorescent lamp products, therefore making it the safer option for your family and our environment.

 

LED Lighting: An Illuminating Investment

19 Feb

LED Lighting: An Illuminating Investment

When considering LED lighting solutions for jewelry display cases, art gallery lighting or even museum displays, people love the way high-quality LED lights look, as well as their ecological benefits—but they may be put off by the higher initial cost.

The truth is that LED lighting is a money-saving investment over time. By installing LED lighting in display cases, on countertops and as overhead lights, you’ll save money over the next several years:

LED Lighting Lasts Longer
LED lamps last much longer than traditional lighting bulbs. In fact, they have an extra-long life of over 30,000-40,000 continuous hours—that’s about 6-8 years under normal usage conditions! You save big by not having to replace bulbs or lamps as often.

LED Lighting is Cooler
LED lights give off virtually no heat—which means you spend less on air conditioning to keep your store cool.

LED Lighting Uses Less Electricity
LED lighting solutions use just 3% of the electricity of regular halogen bulbs—just 3%! Imagine the difference that would make on your utility bill for running a store full of LED lights compared to your traditional lighting methods.

So don’t put off investing in LED lights. They show off your merchandise with true white, natural daylight-quality light. And their money saving benefits will more than pay off in the long run!

 

LED lights guide the intelligent lighting

26 Nov

Energy subsidies for energy-saving lamps in large scale

As the leading policy of a low carbon economy in 2010, energy saving penetrate deeply into the major cities. Beijing, led by energy-saving lamps subsidies to promote low-cost high-quality energy-saving lamps to the urban areas around Beijing, for the first time to achieve Beijing home, sharing the green light. In this will, Guangdong, Hubei, Fujian and other places, energy saving lamps have also been popularized and achieve landscape, home, the popularity of industrial energy-efficient lighting, led lighting products a comprehensive energy-saving, healthy development. Incandescent phase-out strategy to achieve this rapid progress, and promote LED lighting, solar lights, green, energy-saving development.

Intelligent Lighting LED lamps to guide the development of energy-saving

Guangzhou International Lighting Fair, Light Fair (Guzhen Lighting Fair) and other international exhibitions, LED lighting products have become the protagonist of the exhibition, there is no doubt that modern energy-saving LED lighting, intelligent lighting, a major force in the development,

Recently, the Guangzhou Asian Games opening ceremony of the LED lighting technology, Asia has witnessed the amazing miracle of Flower City, regardless of the stage, electronic screens, aviation lights, stage lights, or LED lamp beads clothing, modern low-power, high brightness lighting technology, grand occasion to show the most of the Asian Games, the Asian Games opening ceremony to create a comprehensive scale, the legendary event.

The rapid expansion of monopoly market improved lighting sale

At present, the lighting monopoly market mainly Macalline, actually home-based national chain of home stores, and lighting in various parts of the city, such as the Han to lighting the city, brilliant lighting City of Lights Lighting City, Bandung foreign exchange and so on, while in the second tier cities, mainly lighting store brand appears, for example, Lai really lighting, art lighting master, Eden beauty, quality of life, etc., but master of arts especially lights, just the beginning of this year, China Merchants join After three quarters of the current has become the largest, most professional, most well-known, the first three quarters this year Arts and Master of lighting lamps over the country hundreds of stores, lighting chain, brand monopoly, spur-round development of medium and small cities lighting market .

With the rapid development of the overall level of renovation, adaptation of modern furniture, home appliances, building materials, lighting, home lighting as decoration during the course of one of the most important, while the overall consumption level lighting, broken down by household, transportation, commerce, mainly decorative several major types of furniture to the lighting industry become the third largest after the building materials industry. The energy, health, overall, the rise of the concept of intelligent lighting, catalysis, “four-dimensional lighting” the era of consumption, product quality, service and other issues as consumption increased, market expansion, the main problem in the form. Expert analysis, professional, branded store will take the initiative to promote market stability and healthy development, and become the main trend of the industry and the rise of power.

 

LED Lights: The Future Of Lighting

05 Nov

LED stands for light emitting diode. LED’s are not new, they are the tiny red or green lights on the front of your stereo that tells you that the power is on. Some consoles have quite a few of them to show the state of preparation of the equipment. However, there is a new wave of interest in LED lighting by manufacturers. There is talk of LED’s being the future of lighting. In fact, there always has been these rumours about LED’s, but nothing ever seemed to come of it.

This renewed interest in LED lights started in 2004 when vehicle manufacturers took another look at using LED lighting in car headlamps. In 2008, Lexus manufactured the first ever car, the Lexus 600, with LED headlamps. These cars were exported all over the world except for North America. However, the 600′s headlamps were or are not true LED headlamps, the main beam is produced by filament bulbs.

The first true LED headlamps were fitted to the Audi V10 R8 sports car also in 2008 and the first American automobile was the Cadillac Esplanade Platinum in 2009. However, there is an inherent issue with high power LED lights, the back of the diode produces a lot of heat. In fact, a cluster of high power LED’s produces enough heat to damage itself and melt the headlamp casing.

There are ways around this using heat sinks and cooling fans, but these answers are not ideal, so technicians and scientists are still looking for ways to resolve this problem. On the other hand, the front of the LED lights produces almost no heat at all, so if there is vapour in the headlamp unit and the ambient temperature is below freezing point, then ice crystals will form over the LED’s distorting and dampening the rays of light.

All the same, scientists are sure that these teething problems will be overcome and that LED lighting will one day be the most economical form of lights to use. In fact, it is already very inexpensive to use and the LED lighting units themselves last a long time. It is just the issue of overheating.

Besides their use in car headlamps, LED lighting units can be seen in flashlights and in other parts of cars. Manufacturers are using LED lights more and more often in brake lights, flashing indicator lights and hazard warning lights, because there is no problem at all with these quite low powered LED lights.

LED lights used to be either green or red, but now it comes in more colours. White and blue are common. The coloured lights that you see under some cars are another example of LED lighting. They serve the useful objective of making the car of motorbike more highly visible. All right, that may not be why they were installed, but nevertheless they increase the vehicles’ visibility.

Many more uses will be found for LED lights over the coming years. You will find incandescent bulbs and even fluorescent tube lighting being phased out in favour of LED lights as the issues are surmounted, because LED lighting is still in its early years.

Post by:preownedcars.carsonly.org

 
 
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