Tag Archive: halogen

October 23rd, 2011
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BulbAmerica Expands its Line of Halogen Mild Bulbs to Give Customers A lot more Alternatives for High Doing Energy Productive Lighting


Brooklyn, NY (PRWEB) December 14, 2010

Are environmentally friendly light bulbs doing consumers more harm than good? In the April/May 2010 issue of Architectural Lighting, Elizabeth Donoff, ALs editor, expressed uneasiness concerning the transition to eco-friendly lighting, stating, What is of greatest concern to me is that this switch in lighting sources can be simplified to an either-or proposition. Donoff observed that the attention and praise that CFL and LED bulbs have earned from the media and the public has forced a steady stream of technologically immature products onto the market while keeping higher performing lighting options from consumers views. One of the most consistently high performing and environmentally friendly light sources are halogen light bulbs, a technology often overlooked amidst demands for new eco-friendly lighting. As Donoff noted, and BulbAmericas lighting experts agree, the adoption of halogen bulbs is a step consumers can take toward home energy efficiency.

Lasting anywhere from 2,000 hours to 12,000 hours, halogen light bulbs achieve life hour ratings significantly better than incandescent bulbs but when compared to CFLs and LEDs underperform. BulbAmericas Lighting experts and industry leaders have found that this underperformance is often exaggerated because consumers have been encouraged to focus too much on how long a bulb lasts rather than its efficiency and disregard what the actual qualities of light of LED and CFL bulbs are. With regard to efficiency, or luminous efficacy (lm/W), halogen bulbs have an efficiency rating of between 10-30lm/W and LED light bulbs a rating of anywhere between 17 lm/W to 49 lm/W. This means that halogen bulbs can perform as well and sometimes better than LED bulbs. Though the efficiency of LED bulbs is promising, studies by consumer advocacy groups have found that there is little performance uniformity among LED bulbs: some are high performing whereas others do not even outperform incandescent bulbs. Though CFLs are more efficient than both halogen and LED bulbs, they use small amounts (1mg 5mg) of mercury, a neurotoxin, and thus present environmental concerns.

So where do halogen bulbs surpass LEDs and CFLs? BulbAmericas lighting experts observed it is in color faithfulness and their breadth of application. With regard to color faithfulness, or the color rendering index (CRI), LEDs and CFLs are inconsistent. A 2009 report by the Pacific Northwest Laboratory for the US Department of Energy found that LED replacement bulbs for directional MR16s and more diffuse light sources like A-shape bulbs had CRI scores at best 85 and at worst below 70. In other words, LED replacement bulbs may not be able to accurately display the colors in your home, restaurant, or store. Though CFLs fare slightly better than LEDs, halogens are by and large the best choice when color is important, such as in spaces like a kitchen or retail environment. BulbAmericas latest halogen bulbs from Philips, GE, Osram, Ushio and others are offered in nearly every shape from candelabra to T3 with CRI scores of 100 or very close to it, meaning that these bulbs portray color identically to daylight colors. Another advantage of halogens over LEDs and CFLs is that halogens produce a versatile light. In low voltage 12v MR16s, halogens can produce a highly focusable light perfect for spot or broader beams, whereas in PAR shapes halogen bulbs are exceptional for flood lighting and general illumination. LEDs have long struggled as general light sources and CFLs are inconsistent as directional light sources. Though LEDs and CFLs may be the longest lasting and most efficient, sometimes they are simply the wrong choice in certain applications and consumers lighting may suffer because of it. Halogens on the other hand are found in nearly all applications from stage & studio lighting to surgical and medical lighting. With respect to LED replacement bulbs, a 2010 report for the US Department of Energy on LED bulbs found that many of them do not correspond to the dimensions of the shapes they are replacing as specified by the American National Standards Institute (ANSI) codes. What this means is that an LED MR16 intended for a specific track lighting fixture may not fit it even though the LED MR16 has the same ANSI letter-code as the bulb it is replacing. Having been around for a long time, halogen bulbs conform to all industry standards and their use will certainly reduce consumers headaches in finding replacement light bulbs that fit their existing fixtures.

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October 9th, 2011
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Energy Efficient Light Bulbs: Which Light Bulb is Best? | Suite101.com

Switching from incandescent light bulbs to more energy efficient light bulbs like LED lights, compact fluorescent light bulbs or halogen light bulbs?

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June 11th, 2011
post by LED-Bulbs | | 1

Using Energy Saving Light Bulbs

People nowadays are very much educated with respect to current global warming and climate change conditions and hence, they prefer to go for energy saving light bulbs for their home and business lighting needs. But in order to achieve this desire as well as get the perfect lighting, you need to make a careful selection of a reputed brand which saves maximum energy. Make the right distinction as to which bulb produces the proper lighting because some of these bulbs produce less light. Electricians or lighting experts are the best people to approach if you are finding it difficult to find the right energy saving lights for your lighting fixture.

Once you have fixed the energy saving bulbs, do not expect your electricity bill to go down right away. It always takes some time to see a noticeable difference in your bill and this cost saving increases as you use these bulbs more and more. You will notice the actual savings over a period of maybe a year and when you calculate the saving over the duration, you will be a satisfied customer and you will feel that the energy saving light bulbs you bought are actually worth the money you paid for. You can replace almost all the light bulbs in your house with energy saving ones. Doing so will considerably reduce your energy bills.

Of all the different types of bulbs available, the decorative ones are the most used and tend to use up a lot of power. So if you want to really save money on lighting and help the world, then these are the bulbs that you should be willing to change or replace with energy saving ones. But always keep in your mind that lights are an important part of your home décor and great care should be taken with respect to this matter. So put in a good amount of time and energy while selecting energy saving bulbs for your house.

What are the different kinds of energy saving light bulbs available? There are different kinds of bulbs depending upon their functionality and cost. Some of them are MR16, Tune, xenon, candle blunt tip, halogen, and fluorescen. You can test them by the way they illuminate a given space. You have to set these light up in such a way that you get the perfect illumination to complement the interior of your house.

If energy is not a a constraint then fluorescent bulbs are the best lighting fixtures available in the market. But care must be taken to ensure that they are properly installed. Fluorescent lamps have the property of diffusing light equally in all directions. Some people might find this property pretty irritating and that is the main reason not many people opt for this kind of lighting system. But nowadays we get advanced fluorescent fixtures with advanced properties, which do not only act as good light fixtures but also elegant decorative items.

Halogen Light Bulbs

Then there are the halogen light bulbs. These bulbs have a tungsten filament and a gas-filled gas enclosure. These lights are considered to be the brightest energy sources available in the market today. If you are looking for spot lights to highlight certain parts of your house like the fireplace or a painting on a wall, then halogen light bulbs are a good option. You can go for larger halogen bulbs if you want to use them in a home theater or entertainment room where bigger spot lights are needed.

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April 24th, 2011
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Lighting Q&A: Lighting And Light Bulb Basics

By Larry Tibbets

* What are the different types of lighting?

The different types of lights are incandescent, tungsten-halogen, compact fluorescent lamps, tubular fluorescent fixtures, and HID (high-density discharge).

•Incandescent lights have a relatively short life. They can only withstand between 1000 and 3000 hours of continuous use. They are also the least efficient source of regular lights.

•Tungsten-halogen are lights that belong to cateogyr of incandescent lamps. They have become gradually popular in recent years. They generate a white light with more intense standards.

•Dense florescent lights are a kind of fluorescent light but generate color more similar to some incandescent lamps. They combine the standard features of other lights.

•Tubular fluorescent lights are in tubular shape. They have a smaller diameter but are more efficient compared to other lights. They have a magnetic ballast that the lightning features depend upon.

•HID is a type of light that has a high output of light. Its components are mercury, metal halide, vapor and high pressure of sodium lighting.

* What are the different kinds of fixtures?

An extensive diversity of fixtures is available for different purposes. In general, fixtures are practical, versatile, presentable, and durable to make the interior design colorful.

The three main groups of fixtures are end piece fixtures, ceiling lights fixtures, and landscape fixtures.

•End piece fixtures have a design to work with solid standard cable wire.

•Ceiling light fixtures are handled with modified cable with larger diameter and capacitors.

•Landscape fixtures are used for giving colors and additional attraction for the background of landscape.

* What is a fluorescent light?

A fluorescent light produces energy from the atom. It is composed of many small particle pockets that expand to cause momentum. The basic unit of lights in flourescent is “light photons.”

Atoms discharge light photons when the electrons heat up. The electrons travel around certain orbit to increase the net charge and produce energy levels. After that light is produced from the nucleus.

* What is incandescent light?

Incandescent lights produce light by a shimmering filament. The filament is heated by white-hot electric current. Incandescence is the light-giving method. A glass container or lamp encloses the bulb.

It normally has a vacuum with a low-pressure to produce oxidation of filament with a high temperature.

* What is halogen?

Halogen can provide brilliant illumination by the use of electric current to heat the filament of metal and tungsten until it burns. Halogen has a filament inside a container or envelope.

A halogen lamp works much the same way as an incandescent lamp. On the other hand, the chemical reactions between halogen lamps are proficient and brighter than incandescent lamps.

About the Author: Larry Tibbets is a regular contributor to lighting- and electrical-related guides and websites such as aa href=”http://www.Lighting-Help.com” rel=’nofollow’>Lighting Help. Website: http://www.Lighting-Help.com

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April 23rd, 2011
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Beautiful Lighting Tips 101 – A Crash Course In Lighting Design

By Brian Starr

Many people cannot immediately identify why they may like or dislike a particular room or interior. Proper lighting and illumination is the single most critical factor in designing a pleasing interior environment. A successful lighting design is pleasing to the eye, focuses attention on key room features and eliminates shadows and “hot spots”. There are several lighting applications that can be used to meet specific lighting needs or to achieve a desired special effect.

GENERAL or AMBIENT LIGHTING refers to an even overall level of light provided to make a room or space comfortable and safe for its intended use. Recessed lighting is very popular as a general lighting source. Recessed lighting may be in the form of 3″ to 8″ diameter “can” type fixtures consisting of a “trim” and a “housing.” Recessed “trims” are the visible portion of the recessed light fixture and are available in hundreds of styles and colors to control the spread of light, reflect the light and/or match a particular decor or theme. The “housing” is the actual enclosure that is installed into the attic and connected to the power system. Different housings are available for new construction and remodel construction where attic access is difficult. Where recessed lighting may be in contact with building insulation, an “IC” rated housing is required to prevent a potential fire hazard. In may office environments, general lighting is provided in the form of luminous fluorescent ceiling panels.

TASK LIGHTING typically refers to the higher level of light provided on work areas such as kitchen islands, countertops and desks. Additional light is directed to these areas using recessed, track or pendant fixtures. Concealed under-cabinet lighting is also frequently used by lighting designers to provide task illumination without seeing the source (fixture). Fixtures with either low or line-voltage halogen or xenon bulbs provide a whiter, warmer light than fluorescent under-cabinet lighting. 5 watt xenon or halogen lamps spaced 6 inches apart are suitable for most task lighting purposes where the fixture is within 24″ of the work surface. Whether recessed, track or under-cabinet style, low voltage halogen or xenon lighting fixtures are smaller than line voltage lighting but require a transformer to change the voltage from 120 volt to 12 volt. The transformer is included inside many low voltage fixtures but is also sometimes separate depending on the particular fixture and style.

ACCENT LIGHTING. To be effective, accent lighting should be approximately four times the level of ambient (background) light in an area. Focusing light on an “accented object” or “area” draws attention to a picture, vase or other focal point. Here again. Halogen lighting type fixtures provide a whiter, brighter appearance than standard incandescent or fluorescent type fixtures. The selected fixture should be directional, either a swivel or gimbal type fixture to aim the light exactly where it is needed. Adjustable surface mount fixtures, track fixtures and even recessed style fixtures are available with “aimability” in mind. For a dramatic museum-type effect, some fixtures can include a focusing lens for pinpoint accuracy. The “Lighting Illumination” PDF attached to this file is a good guide for estimating the illumination or brightness of various bulb types and wattages.

WALL WASHING is a type of Accent Lighting that creates an area of uniform illumination that may desirable for a series of photos or artwork. Wall Washing reduces the texture of the wall surface. Often the reflected light can create ambient light in the remainder of the room that is pleasing and restful. WALL GRAZING is opposite from Wall Washing in that it creates a dramatic highlight and shadow effect on surfaces such as draperies, stone or brick. Ceiling light fixtures for Wall Grazing are placed closer to the wall than Wall Washing in order to highlight the three-dimensional effect.
More information
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more energy saving light bulbs
LED bulbs
use energy saving light bulbs
energy saving light bulbs that save loads

DISPLAY LIGHTING consists of small low voltage lighting fixtures to illuminate cabinets displaying keepsakes, ornaments, dinnerware etc. Many under-cabinet fixtures (as described above) are suitable for display lighting. Small space xenon fixtures used on a “Mini” or “Linear” track have unparalleled design flexibility. Tiny fixtures may be spaced anywhere along the track making it possible to create an even distribution or highlight task areas. Lamp choices from 3W to 20W allow illumination levels from a subtle glow to a brilliantly lit area. A “Light Baffle” often serves as a holder for the track and as a visual shield, concealing the halogen or xenon bulbs. An innovative use of the baffle is as a rigid support, such as spanning the edge.

COVE LIGHTING gives a room a more open appearance by illuminating the perimeter of the room where the walls meet the ceiling. A large crown mold or soffit is built around the perimeter of the room providing a concealed space for a continuous halogen or xenon track lighting. Cove lighting looks best with a smooth, even wash of light. Fixtures should be placed at least 4″ from the wall with 6″ to 9″ being ideal to minimize scalloping. The ceiling height above the lamps should be not more than twice the distance from the wall. The lamp spacing and wattage will depend on distance and brightness level desired. For a medium light level, a good starting point is with 5-watt lamps spaced 6″ on center, with a track spaced 6″ from the wall and 10″ from the ceiling. From this reference point you can design the light level up or down as desired. A room with a dark ceiling, or a brightly lit room may need a higher light level.

Lighting that is thoughtfully considered can make a world of difference and will be an improvement that lasts for many years. Many home improvement stores include sample displays of the various lighting systems and fixtures mentioned above. As with most appliances and electronics, there is a wide variety in the quality of lighting fixtures available. Be sure your purchase is from reputable well known company with fixtures that are either UL or ETC listed. There are numerous online retailers that offer name brand fixtures delivered to your door at very competitive prices.

About the Author: Brian Starr is the owner of IPN Lighting.com ( aa href=”http://www.ipnlighting.com/” title=”http://www.ipnlighting.com/” target=”_blank” rel=’nofollow’>http://www.ipnlighting.com/ ).
His company is an authorized retailer of WAC Lighting products, including
transformers, dimmers, low voltage pendant glass, linear systems, surface mounts, and lights.

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April 18th, 2011
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Which Energy Saving Light Bulbs are most effective?

There are a large number of different energy saving light bulbs on the market and it can be quite confusing deciding which ones are best for your particular needs. There are halogen, CFL and LED bulbs which all utilise specific technologies that give the products inherent characteristics and energy saving properties. This short and to the point article reviews the variants of energy saving light bulbs on the market to help you to select the appropriate products for your particular needs.

Looking at halogen bulbs

Halogen bulbs are essentially a high technology type of the original incandescent filament light bulb. The halogen energy saving light bulbs save as a rule 25-35% in electricity costs depending on the specific characteristics and have the advantage of being dimmable. Halogen energy saving light bulbs have simple elegant looks and are of a small size which means they have a great looking visual design.
For more innformation take a looks at energy saving light bulbs

Compact Fluorescent Lamps

Compact Fluorescent Lamp- CFL energy saving light bulbs which use a miniaturised type of the fluorescent tube technology are exceedingly efficient saving around 75% in electricity costs. Modern CFL’s shouldn’t suffer from the dullness and flickering issues that were intrinsic in the earliest CFL’s that hit the market. The main disadvantage of the CFL energy saving light bulbs is that its appearance can be poor, particularly where the fluorescent tubes are evident, but there are some very nice looking spherical shaped CFL’s available. One aspect is for certain and that is that the modern CFL is a considerable improvement on its predecessors.

LED bulbs and

Energy Saving Light Bulbs

LED light bulbs are the best type of energy saving light bulbs. With an energy saving of between 75% and 85%, LED’s are likely to offer the best in energy efficiency. LED bulbs have the further benefit of being incredibly eco friendly. Landfill is decreased because LED bulbs have a particularly long life and the carbon foot print is minimised due to the very low electricity consumption. The final aspect is the visual impression because LED energy saving light bulbs have a high technology visual look which it is important to accommodate as part of the interior lighting plan.

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April 18th, 2011
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The importance of light colour in energy saving light bulbs and LED bulbs

From the inception of light bulbs in the late 19th century up till the last 2 decades the colour of light developed by light bulbs has always been identical. The eleictrical current flowing through the filament gets it white hot and this results in a yellowish light colour. Now in present time with the current technology in energy saving light bulbs then they can be produced with a whole range of distinctive shades of white ranging from a warm yellowish colour to a cool blue white colour. So life has got more complex again! Previously there was just one option but how there are a wide range of variations to mull over to pick the right one for a living area or a kitchen.
Now with the vast range of Halogen Bulbs, CFL’s and LED Bulbs there is the opportunity for choice.
In order to allow you to select the right energy saving light bulbs I will explain in more depth what colour-temperature is and how this technological progression can be exploited.

Detail behind colour temperature for energy saving light bulbs.

The appropriate measure for light colour is colour temperature and the measure used is Kelvin ranging from 2700K to 6400K (Kelvin). The acknowledged way of designating light colour is to use the colour temperature indicator in the range from 2700-6400Kelvin (K). Steel when heated to temperatures between 2700K and 6400K will originally turn yellowish and then through red and white to blue.
The orthodox light bulbs which used a tungsten filament create a warm yellow light at a colour temperature around 2700K.
When the colour temperature is raised to higher than 3000K the glow turns white just like halogen bulbs.
At 3500K colour temperature the glow is now pretty white and corresponds to a general fluorescent strip light or certain CFL energy saving light bulbs and LED bulbs.
At 5500K colour temperature the emitted light has the same colour as bright sunlight.
The top of the spectrum for colour temperature is then 6400K which is similar to the light colour on an overcast day.
There is one facet that is bewildering which is that a allocated cool colour temperature for energy saving light bulbs is at the top end of the range. On the contrary a warm colour temperature of 2700K, which is named warm because of the warm glow, is in all respects at the cold end of the scale.

How to decide what Colour Temperature you need with energy saving light bulbs to meet your needs.

By and large the most appropriate alternative for interior areas like lounges or dining rooms is the 2700k warm colour temperature energy saving light bulbs and LED bulbs . Warm light energy saving light bulbs and LED bulbs are beneficial with subtle skin tones and does not expose blemishes. In addition it highlights the best appearance of fabrics and soft furnishings making it the preferred choice.
Cool energy saving light bulbs and LED bulbs are great for workshops, kitchens and laboratories where the dazzling white light gives very good visual definition.
If your space is multi-function like a kitchen breakfast room then the perfect choice energy saving light bulbs or LED bulbs would be approximately 3500K which provide the best of both worlds.

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April 6th, 2011
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Home Lighting: Cost Savings And Design Through LED Lights

By Ben Anton

More and more home, apartment and office owners are looking for ways to go green. The benefits not only improve the quality of our environment, but they also make for significant tax deductions at the end of the year. As energy efficiency is becoming more prevalent in household lighting and home lighting design is becoming more popular, it is no surprise that LED lights are coming to the forefront as a leading choice for illumination.

We are all familiar with the traditional incandescent light bulb. These bulbs are filled with a gas and then a filament is stretched across the inside. When electricity is run across the filament, it heats up to often very high temperatures. The bulb’s glow is a result of the filament heating up. The heat is a result of wasted energy. Incandescent bulbs also suffer from inherent fragility. These lights weaken over time as the heat separates atoms from the whole and causes thin spots in the filament. Eventually these thin spots will break and you will need to replace the bulb.

An alternative light to the incandescent is the halogen bulb. In a halogen bulb the envelope that holds the filament is a lot smaller, made of quartz and is filled with a halogen gas. These bulbs can burn a bit brighter and will last for longer periods of time. It is halogen lighting that is currently used quite often by movie theaters, television studios and movie sets. These bulbs are still heat inefficient, however. The most common halogen light used for indoor and outdoor home lighting is the twelve volt MR16 halogen light.

The LED, light-emitting diode, bulb is a culmination of the best of both the incandescent and halogen worlds but with the efficiency that neither can provide. In an LED bulb, the science on which it is based is completely different from the other two options. There is no filament and very little heat. The light source is a diode that emits light when electricity is applied. This mechanism for creating light allows for much lower energy use, brighter light, and longer lasting bulbs.

One of the most common LED home light bulbs available is the LED Lenser Leflector. These bulbs can replace any halogen bulb up to twenty watts. The leflector can burn continuously for more than 50,000 hours before needing to be replaced. That is more than five years of continuous use and over thirty years if the bulbs burn an average of four hours a day. LED home bulbs are over ninety percent more efficient than a halogen bulb and can be operated for pennies a year. These features make them perfect for moving your home – kitchen, living room, game room; you name it – to a more environmentally conscious dwelling.

Outdoor applications for LED lights are many. They work well for outdoor accent lighting because of the many color options available and can be adjusted to be both spotlights and security flood lights.

Updating light fixtures in a home or office is an excellent way to reduce household costs, save energy and at the same time improve upon your home lighting design.

~Ben Anton, 2008

About the Author: Ben Anton lives in the Northwest and writes for Discount Lights and Knives. Ben invites you to check out more aa href=”http://www.lightsandknives.com/home_led_lighting_design.htm” rel=’nofollow’>LED home lamps and desk lights on DLK’s website for indoor and aa href=”http://www.lightsandknives.com/” rel=’nofollow’>outdoor light fixtures and flashlights.

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March 26th, 2011
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LED Bulbs the environmentalists choice in energy saving light bulbs

Presently there is a lot of concentraton on the environment and how energy saving light bulbs can cut back the carbon foot print. Undoubtedly the best technology energy saving light bulb is LED bulbs, nevertheless their cost is high and are they in all respects worth the investment? Here is a summary of the technology and history of LED Bulbs together with information regarding the costs and environmental positive aspects. Optimistically this information will be of assistance in decision making in LED bulbs.

LED bulbs technology

LED Bulbs utilize light emitting diode semi-conductor technology which has been around since 1962 in a simple form mainly for very low light indicator lamps. The technology behind LED bulbs allows very small units, typically of 1 square millimetre, to be made and in a spectrum of colours. Also LED’s are inherently very reliable and can withstand knocks and bangs widening their utilization. The power constraint of the early units meant that usage was restricted to applications ,for example electronic unit displays; however, the technological advancement basically means that they are now adopted in general lighting applications.

How much energy do they save?

If we use a 25 watt halogen downlighter as a comparator then approximately the same level of light output can be obtained from a 3W LED MR16 . This will create and electricity saving in the vicinity of 85% in comparison to the halogen bulb. Another consequence of the electricity saving is that there will be less stress on the electrical wiring and any transformers will have a longer life span. This results in an additional operational cost saving.

Cost of LED bulbs

The price of LED bulbs is significantly more than either incandescent, halogen or CFL bulbs, but with advancements in technology then the price now means they are commercially viable. When analysing the commercials is most important to note that LED bulbs will typically last anything up to 50 times more than conventional bulbs as their life in approximately 30000 hours.

To quantify the cost savings here we add the running costs of a LED bulb to the purchase cost and compare this to the cost of using traditional bulbs for the same period. Using this practice then you will see a lifetime saving of ordinarily £250 for every LED purchased.

The effect on your carbon footprint of using LED bulbs.

There are 3 key advantages of using LED bulbs from an environmental point of view.

1. LED lamps have a exceptionally long lifespan compared to conventional bulbs and accordingly the level of landfill is dramatically reduced.
2. When electricity is generated using oil and coal stations then it develops large quantities of carbon dioxide. The low energy usage results in a large reduction in your carbon footprint.
3. LED’s unlike CFL’s do not contain mercury or any other hazardous substances which are dangerous to the environment.

These 3 eco benefits disclose clear facts as to why LED bulbs are the preferred option in comparison to halogen or beyond doubt CFL technology for energy saving light bulbs. In due time these benefits mean that it is predicted that LED technology will take over as the best choice.

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