The Future is Bright - The Future is LED

!±8± The Future is Bright - The Future is LED

The lighting industry has been subject to some major changes in recent years with the continued advancement of the energy saving CFL light bulbs and the decision taken by the EU to outlaw all incandescent bulbs by 2012. Despite all the consternation with CFL bulbs there is one topic that seems to be increasingly interesting: LED light bulbs.

Many lighting experts believe that the future of the lighting industry rests with LED technology. However what are the advantages and disadvantages of LED lighting in its current form? In this article I will detail the history of LED technology and discuss what LED lamps have to offer to the lighting market today.

Originally used in devices such as alpha numerical displays and pocket calculators the LEDs have recently seen successful application in commercial and domestic lighting. Two of the biggest factors that are encouraging consumers to change their lighting to LED are: -      

They are the most energy efficient bulbs on the market today, cutting carbon emissions and reducing energy costs. They last longer than any bulbs available on the market, reducing maintenance and energy costs further.

So why isn't all lighting changing to LED? The initial cost of buying LED products can be daunting for lot of consumers of particularly in the commercial sector, where the quantity of bulbs required is higher. However, when considering the total cost of ownership, LEDs far surpass incandescent and halogen lighting and are starting to threaten CFL bulbs. One of the highest costs involved in producing LED bulbs is heat sinking, without adequate heat protection LEDs can loose life span.  

In the early days of domestic LED bulbs one common complaint was the colour of the light produced and the poor light output that was often inadequate to replace halogen spotlights. However, in recent years manufacturers have developed 'warm white' coloured LED bulbs, made to replicate traditional bulbs as well as high powered bulbs that incorporate more LEDs into a single circuit board ensuring that the bulbs can match the lumen output of halogen and CFL bulbs.

Another advantage of LED lighting is its short 'on/off time', this has lead to many local councils in the UK changing their traffic lights to LEDs, not only making them more efficient but also less maintenance is needed. One disadvantage that has been associated with CFL bulbs is their toxicity, or rather their use of mercury, although this has been accounted for with the WEEE levy (a tax on every bulb to contribute to recycling and disposal charges) this problem does not exist with LED lighting, making it more desirable to the more eco-minded companies and individuals.

At present LED lighting technology lends itself to spotlight bulbs because of the ability to manufacture small circuit boards unlike CFL spotlights that need to be slightly bigger to house the tubing. This is changing though with the production of candle, golfball and even strip-light LEDs by a handful of companies, this is a significant development as it proves LED might, someday, incorporate the whole lighting industry and not stay in its current market as a fringe technology. Although there is still a long way to go for LED technology, public acceptance is pivotal to its success, and considering the massive advantages and the rate of technological advancement, this shouldn't be difficult to achieve.

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The Future is Bright - The Future is LED

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Deck and Patio Lighting Thoughts

!±8± Deck and Patio Lighting Thoughts

One of the primary motivators for the homeowner in considering a patio or deck area as an add-on to their home is its entertainment value. Cruise the neighborhood during the day and you will more than likely see only a few people using the patio or deck. However, as evening approaches the story changes. When parent(s) come home from work or when it's the right time to plan a party for friends and relatives, the patio or deck is frequently used as the center of festivities that often last well into the night.

During the planning stages, it's important to include a lighting plan to make sure that the patio and deck area are not only well-lighted but that the lighting design creates a magical effect for its visitors.

Starting with the most elegant (and usually the most expensive) deck and patio lighting we can take a look at lights that are built-in to the foundation elements of the patio or deck. These lights provide a soft uplight glow that can mark a pathway or just provide a non-functional source of beauty. The lights are generally installed by contractors during the patio and deck construction and are generally not a project that the average DIY should consider tackling. I've seen this type of lighting done in a variety of colors and have even seen systems that automatically change the colors during the course of the evening, providing a mood-altering effect.

Dimmers are also a worthwhile investment for ground level lighting, allowing the host to increase or decrease the intensity of the lighting depending on the mood desired. Ground lighting is very safe since the lights themselves are never in contact with the visitors. Contractors will make sure that the process for changing the bulbs is simple and straightforward.

Speaking of dimmers, it's generally a good idea to keep your entire deck and patio lighting system under dimmer control. Bright moonlight can allow you to turn the lighting down a bit while dark moonless nights can prompt you to boost the light up a bit.

Ground level lighting can also be used to frame the patio or deck area particularly if you've planted shrubbery or other low plantings around the area.

Down lighting is another type of deck and patio lighting. As the name implies, this is lighting from above and can be used to simulate moonlight. Besides being a natural lighting source, down lighting also enhances the security of the area because a lighted deck or patio usually leaves the impression the there's someone at home.

A creative way to use this as a security feature is to have your doorbell circuit tied into a switch that at least temporarily turns the down lights on.

Most down lighting is accomplished by the use of either or both floodlights and spotlights. The floodlight will provide more ambient lighting by illuminating the entire deck or patio area while spotlights can be used as task lighting to highlight such areas as stairways and entryways. Spotlights can also be used to accent special features such as fountains, plantings or cooking and eating areas.

Many deck and patio lighting is installed at the waist level to keep any glare away from the face and to provide an elegant touch. Some lighting can also be installed at the top of posts that are at the top of stairways or other areas that separate one part of the deck or patio from another.

Some homeowners use strip or rope lights to highlight the porch or deck railing or other areas that need special attention such as stair risers or seating areas. If you live in an area where you can use a deck or patio during the winter holiday season, give some thought to decorating the area with lighting that can be used year-round.

Have fun with your lighting plan for your deck or patio. Most of the lighting is relatively inexpensive and can be removed or modified relatively easily. You may want to divide your plan into lights, which need to be permanently installed, and lights that are movable and optional.

Please don't get carried away with deck and patio lighting plans. This type of lighting is best understated although some decorative lighting such as hurricane lamps or tiki torches (used in moderation) are OK.

Bugs are often a problem at night and several manufactures offer lights that discourage or repel flying pests. Sometimes a bright light, strategically placed in a tree a bit away from the patio or deck will help keep these insects occupied elsewhere rather than with your guests.

Above all, keep in mind that you want to create a magic environment that will encourage visitors to congregate and socialize late into the evening.

Deck and Patio Lighting Thoughts

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Lighting and Energy Efficiency

!±8± Lighting and Energy Efficiency

As a former educator and former psychotherapist, I have continually had a common notion about people reinforced: We are creatures of habit and change doesn't come easy for any of us. With respect to our living environment, this is particularly true. It generally takes some kind of jolt or "smack in the face" to get us to consider making changes in where and how we live.

One of the strongest motivators in prompting people to change comes from information on how to save money particularly when we find we can get the same benefits from using things that are more efficient and cost-effective.

This article is a brief synopsis of ways that you can save money on your lighting costs. Implement some of these suggestions and you will notice a change in the bottom line of your electric bill. Remember, that these savings add up month after month and at the end of the year, a tally will prove that you've made a wise move.

For many people, the way they light their homes and businesses hasn't changed much since the invention of the incandescent light bulb by Thomas Edison. Granted, these bulbs have evolved into more energy-efficient devices, but technology can only go so far with an idea that, by its very nature, is inefficient in terms of its basic function. The incandescent light bulb is really more of a heat than a light producer and compared to new lighting technology they just aren't very durable.

The latest and greatest lighting innovation is the compact fluorescent light bulb also known as the CFL. The first CFLs had some definite drawbacks. Like most new technology, they were more expensive than their incandescent counterparts, had separate tubes and ballasts and were available in just a limited number of shapes, sizes and the amount of light that they generated. These limitations made the early CFLs somewhat limited in terms of popularity and applications were typically limited to just the right circumstance and need.

The great competitive nature of our culture soon began to prompt significant changes in all aspects of the CFL. If you haven't been hanging around the lighting department in your local home center or hardware store, you may be in for a surprise with respect to what is currently available to homeowner and business owners and why you should seriously consider making some changes in the way you light your environment.

First, let's consider expense. Modern CFLs use about one-third the electricity and last as much as ten times longer than their incandescent counterparts. For example, if you consider one single 18 watt CFL in place of a comparable 75 watt incandescent bulb, over its lifetime, the CFL will save you as much as - at an average kWh unit cost.
Remember, we are talking about just one bulb. Multiply the number of bulbs by the average savings per bulb and you will be in for a real eye-opener.

Related to the cost savings provided by the CFL, let's also consider efficiency. The typical CFL is up to four times more efficient than its incandescent counterpart and will last on average ten times longer. Taking a 22-watt CFL as an example, it will generate the same level of illumination as a 100 watt incandescent. Translated into energy efficiency, the CFL uses about 60% less energy than a comparable incandescent.

The quality of the light generated by the newer CFLs has improved considerably over the earlier versions. Everyone is familiar with the cool white look of the early fluorescent. While this type of color found many applications in factories and offices, it just wasn't conducive to the type of lighting most people desired in their homes. Newer CFLs use rare earth phosphors that can provide a wide variety of colors including those that emit a warm, soft light that is desirable in a living environment. In addition, the newer CFLs include technology that eliminates the annoying hum and flicker of the older versions.

The big news is that today's CFLs can be used just about anywhere that the traditional incandescent bulb is used. They can be used in table and floor lamps, on track lighting, in recessed fixtures, in ceiling fixtures and even outdoors. The newest technology also provides 3-way CFLs that can be used in lamps with high, medium and low settings and CFLs that can be used with a dimmer switch are also now on the market.

For the environmentally conscious individuals, CLFs have been proven to reduce both air and water pollution. For example, replacing just one incandescent bulb with a comparable CFL will reduce about one-half ton of CO2 over the life of the bulb. If using CFLs became the lighting method of choice for the entire country, we could eliminate a large number of electric power plants and their toxic by-products.

While the news about switching to CFL lighting is nearly all-positive, there are a few drawbacks or limitations that should be mentioned. Not all CFLs are dimmable. This technology is fairly recent and the models that are available are therefore limited. Be sure to carefully check the package before purchasing a CFL that you intend to use with a dimmer or in a 3-way light. If you plan to purchase a CFL for use on a timer, be particularly careful in making your selection. While the standard CFL will function with a timer, its life will be considerably shorter.

Unfortunately nearly all CFLs are not as durable when they are frequently turned on and off. Consider where you plan to install CFLs and stick with an incandescent bulb if this is an issue (such as in closets, laundry rooms, etc.).

Many CFLs don't produce their rated light level when used in an outdoor setting. The package should let you know if the CFL is suited for outdoor use.

CFLs are not designed to function as spotlights so if you have a need for accent lighting in your home or in a retail setting, it's best to consider other alternative lighting.

Finally, CLFs contain small amounts of mercury, which is classified as a toxic material and may be released if the bulb is broken or when it is disposed of. Take care to observe local, state, and federal regulations with respect to the disposal of this toxic metal. If you happen to break a CFL use a wet rag and dispose of both the bag and the pieces in a tightly sealed plastic bag. Your local recycling center may accept this waste but if they don't, use your local trash container making sure to cleanse your hands after disposal.

Under no circumstances, send the waste material to an incinerator because it will simply release the mercury into the atmosphere.

Some final words about CFLs:

These fixtures are available in a wide variety of sizes, styles and shapes and have from two to six tubes. Some CFLs have the ballast permanently fixed and must be replaced as a unit while others have a separate bulb and fixture which permits you to replace just the bulb.

These CFLs are available with standard sockets, which are easily installed, in most household fixtures:

Triple tube lamps provide greater lighting in small areas using shorter bulbs. These lamps are ideal for table and reading lamps as well as for open hanging lamps. Spiral lamps are just as described and are typically used as replacements for incandescent light bulbs. Globe lamps look like standard incandescent bulbs and have a diffuser that will provide a soft and pleasing light. Globe lamps are typically used on bathroom vanities and add the benefit of reducing the heat in this area, which is usually lighted by multiple bulbs. Flood lamps are designed for track and recessed lighting and can generally be used both indoors and outdoors. They provide a soft light, which is diffused and generates considerably less heat than their incandescent counterparts. Candelabra style CFLs are screw-in fixtures that have a small base designed primarily for chandeliers. Socket reducers, available at most hardware stores, may be needed to adapt these bulbs to certain chandeliers and sconces.

While the majority of this article focuses on the benefits of CFL lighting, another light source is becoming more and more popular. I'm talking about natural sunlight. Some DIY will consider installing a skylight(s) a major project and for the most part, they are correct. However, when considering new construction, skylights are certainly an option to seriously consider. While they may be somewhat more expensive to install, they will more than make up the additional cost over the years in reduced electrical bills. If you decide to tackle the job yourself, be sure that the skylight is a tight fit and well caulked.

Finally, and beyond the scope of an extensive discussion in this article, solar panels (depending on where you live) can provide significant a significant savings in your electrical costs. The models and options available in solar panels have significantly increased over the years and there are models available that will fit just about anyone's budget. There are some state and federal programs that provide financial incentives for homeowners considering solar panels and I suggest you look into these.

I hope the information in this brief article has been useful and will prove beneficial to you as you continue to look for better and more economical ways to light your part of the world.

Lighting and Energy Efficiency

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High Efficiency Halogen Lamps Are a Better Energy Efficient Lighting Option For Recessed Downlights

!±8± High Efficiency Halogen Lamps Are a Better Energy Efficient Lighting Option For Recessed Downlights

For many homeowners, especially those with children, the kitchen is the most lived-in room in the house. It's a gathering place, a workspace, a study area, an entertainment venue and of course, a room in which to enjoy meals together. Thus, it's not uncommon for kitchen lights to be switched on for four or more hours per day. This presents a legitimate opportunity to save money and reduce air pollution and landfill waste by switching to energy-efficient lighting solutions.

As a source of both ambient and task light, recessed downlights ("cans") are widely used in American kitchens. These fixtures push light down and away to light an area and a work surface at the same time. To enable the homeowner to add ambience, they're often controlled by a dimmer switch.

For homeowners motivated to make a small investment to reduce their electricity use and/or carbon footprint, a simple light bulb retrofit in their existing kitchen fixtures is a smart and easy strategy. Simply remove the existing high wattage (commonly 65-90 watts) bulbs, and insert lower wattage eco-friendly lamps which yield equivalent light output (lumens). But since there are two types of lower cost energy-efficient lighting options from which to choose, which is preferable in this application?

High-Efficiency Halogen Lamps Beat Compact Fluorescent Lamps

We've looked at this question from many angles and have concluded that screw-in (self-ballasted) CFL reflector lamps, for many the obvious choice, are an inferior, energy-efficient lighting solution. Very few consumers are familiar with the new high-efficiency halogen lamps ("HEH") which have hit the market in the last few years. The best of these models already exceed the energy efficiency requirements for incandescent reflector lamps scheduled to take effect in July 2012.

Here, we cite nine reasons why we believe high-efficiency halogen lamps, controlled by a pre-set dimmer switch, offer overall superior, energy-efficient lighting value to CFLs starting with the most important factor for electric light sources, whether energy efficient or not: light characteristics.

Reason 1 - Great Light:

Halogen light is legendary for being white, bright, crisp, and punchy and making colors appear vivid. The light cast by CFL reflectors, while typically warm white, is average at best.

Reason 2 - Superior Illuminance:

"Illuminance" describes the amount of light on a horizontal surface, measured in "foot candles." High-efficiency halogen lamps, especially those with a PAR (Parabolic Aluminized Reflector) configuration, throw concentrated light downwards measurably better than CFL reflectors. The result? Much more artificial light where it's needed.

Reason 3 - Effortless Dimming:

No artificial light source dims better than an incandescent lamp. High-efficiency halogen lamps use improved incandescent technology and don't require special dimmer switches. Dimmable CFLs cost more than non-dimmable versions. But dimmable doesn't translate into impressive dimming performance.

Reason 4 - Dimming = Longer Lamp Life:

Dimming any lamp is an energy-efficient lighting strategy because it reduces electricity consumption and harmful gas emissions. There's an added green benefit when dimming high-efficiency halogen lamps: it extends the lifetime of the lamp. For example, constant dimming by just 15% (a pre-set dimmer enables this) will triple the life of the bulb, thereby reducing landfill waste and replacement costs. For premium high-efficiency halogen lamps, this translates into 9,000 to 12,000 hours, roughly the same as the average rated life of an Energy Star rated CFL reflector (whose projected life is static even if dimmed).

Reason 5 - Instant On:

Just like non-halogen incandescent bulbs, halogen lamps reach full brightness with the flick of a switch. State-of-the-art CFL reflectors will start instantly but take 30 seconds to a minute's time to reach full brightness (depending on the ambient room temperature).

Reason 6 - Mercury-Free:

High-efficiency halogen lamps operate without the use of mercury. All CFLs contain mercury which must be vaporized to create ultraviolet energy and subsequently, visible light. Since mercury is a toxic substance, this necessitates proper recycling at the end of a CFL's life. Further, while breakage in a recessed can is a low probability risk, an accident would cause mercury to contaminate the area below.

Reason 7 - Reliability:

High-efficiency halogen lamps don't contain any electronic components. Unlike a screw-in CFL, which contains a precise electronic component called a ballast, neither frequent on/off switching, nor trapped heat will affect the performance or lifespan of these energy-efficient lighting solutions.

Reason 8 - Lumen Maintenance:

Lumens are the measure of the amount of light emitted by a light source. High-efficiency halogen lamps maintain their initial lumens for as long as they operate. CFLs, using different technology, will gradually dim by about 25% over their lifetime. Why does this matter? Studies have shown that at age 65, the eyes need three times more light to see as well as at age 20. With CFLs in a kitchen, vision needs and light output are moving in opposite directions as time passes.

The Rest of the Story - High-Efficiency Halogen Lamps Are Greener

Reason 9 - Better, REAL Energy-Efficient Lighting:

The commonly used metric for comparing energy-efficient lighting is lumens of output per watt of electrical input. This method is appropriate for omni-directional bulbs such as traditional A-shape lamps and spiral CFLs. Directional lamps (floodlights, spotlights) are different. Their job is not to glow, but to throw light into a defined area or onto a specific surface. Compare the measured light (illuminance) on a horizontal surface from two floodlights, a 16 watt CFL BR30 (630 lumens) and a 34 watt HEH PAR30 (1) (612 lumens). The CFL has 39 lumens per watt vs. 18 for the HEH. Thus, by conventional measures the CFL is more than twice as energy efficient. Measured illuminance tells a very different story: the CFL floodlight casts just 15 foot candles of light onto the work surface in this demonstration. The HEH? 51 foot candles.(2) Therefore, at 1.5 foot candles per watt, the HEH bulb is 60% more efficient in real terms than the CFL (0.9 foot candles per watt). Or viewed another way, using typical recessed downlight fixtures, to produce an equivalent amount of light on a kitchen countertop or table, where important tasks such as food preparation and schoolwork are performed, a 54 watt CFL floodlight would be needed. Not only would such a lamp be more expensive to purchase, it would cost 36% more to operate and generate 36% more air pollution than the high-efficiency halogen lamp.

Notes for Previous Example

1. A 40 watt model was dimmed by 15% to reduce lumen output from 720 to 612.

2. Measured distance of each light source to the surface of the light meter instrument was 50 inches.

Illuminating the Perks of Energy-Efficient Lighting

Impressive consumer value is sometimes found where it's least expected. We're all for selectively installing energy-efficient lighting around the home and place of business because it leverages the fact that the cheapest and cleanest kilowatt of electricity is the one that's never produced in the first place. But if light bulb buyers only paid attention to the popular media or followed Energy Star prescriptions, they would only know to consider CFL reflectors as an affordable, energy-efficient lighting solution for their oft-used recessed downlights.

As we've argued here, the exciting new high-efficiency halogen lamps (spot and floodlights), which are generally priced on par with premium quality dimmable CFL reflectors, are superior energy-efficient lighting solutions for consumers who value great light characteristics, thrift, dimming performance and environmental sustainability for their lighting dollar.

High Efficiency Halogen Lamps Are a Better Energy Efficient Lighting Option For Recessed Downlights

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LED Spot Light Dimmable 11W LED (Replaces up to 100W)

!±8± LED Spot Light Dimmable 11W LED (Replaces up to 100W)

Rate : | Price : | Post Date : Dec 03, 2011 10:03:16
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Dimming 11W PAR38 LED Spot Light Replace up to 100W EagleLight s dimmable LED spot lights offer up to 662 lumens. The cool white LED spotlight puts out 662 lumens and the warm white generates 553 lumens. Both LED PAR38 spot lights consume only 11 watts of energy! These LED spot lights replace any household 100W incandescent halogen bulb and can save you up to 90% energy savings! PAR38 Dimmable LED Spot Lights have Great Dimming Range This dimmable LED has a great dimming range and offers smooth flicker free dimming from 10% to 100% brightness. These 11W LED spot lights replace up to 100W conventional spot lights with a E26 and E27 medium screw base (100R38). These PAR38 lamps are designed for installation in standard North American screw in sockets. This bulb can be used in LED recessed lighting LED ceiling lights enclosed LED landscape lighting and other LED home light and LED office lighting applications. Several Beam Angles for LED Spot Light Applications These LED spot lights are available in a 60 degree beam angle for general purpose wide spot and narrow flood applications. 15 and 30 degree LED spot lights are available by special order call if interested. These high power LED spot lights offer maximum heat dissipation with state of the art aluminum sacked fin technology. This bright LED PAR38 is available in warm white natural white day white and commercial white color temperatures for your everyday needs. Aluminum heat sink No UV or RF interference advanced heat sink and optical diffuser longer life than CFL incandescent & fluorescents. No mercury no ballast required wide voltage and constant current design solid state high shock & vibration resistant Mercury free savings in energy consumption quiet no noise no flickering The products are in accordance with CE and UL testing standards.

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