Light Emitting Diode LED Light Fixtures

<body> <table border="0" width="100%" cellspacing="1"> <tr> <td width="100%"> <b><font size="2" face="Arial"> <a target="Lightingforum Main Welcome Screen" href="http://www.merchantmanager.com/lightingforum/storefront.asp?pageno=111" style="text-decoration: none"> SEARCH FOR LIGHTING</a></font></b></td> </tr> <tr> <td width="100%"> <hr> </td> </tr> <tr> <td width="100%"> <a href="../mainmenu1.htm" target="_top" style="text-decoration: none"><b><font face="Arial" size="2">Back To Lightingforum</font></b></a></td> </tr> <tr> <td width="100%"> <hr> </td> </tr> <tr> <td width="100%"><b><font face="Arial" size="2"> <a target="main" href="http://www.merchantmanager.com/lightingforum/storefront.asp?pageno=2548" style="text-decoration: none"> Light Emitting Diode (LED) Interior Light Fixtures</a></font></b></td> </tr> <tr> <td width="100%"> <b><font face="Arial" size="2"> <a target="main" href="http://www.merchantmanager.com/lightingforum/storefront.asp?pageno=2549" style="text-decoration: none"> Light Emitting Diode (LED) Exterior Light Fixtures</a></font></b></td> </tr> <tr> <td width="100%"> <b><font face="Arial" size="2"> <a target="main" href="http://www.merchantmanager.com/lightingforum/storefront.asp?pageno=2550" style="text-decoration: none"> Light Emitting Diode (LED) Replacement Light Bulbs</a></font></b></td> </tr> <tr> <td width="100%"> <hr> </td> </tr> <tr> <td width="100%"> <a href="http://www.merchantmanager.com/lightingforum/storefront.asp?pageno=111" style="text-decoration: none"><b><font face="Arial" size="2">Search Our Catalog</font></b></a></td> </tr> <tr> <td width="100%"> <a href="http://www.merchantmanager.com/lightingforum/mmcalc.asp?id=lightingforum" target="main" style="text-decoration: none"><b><font face="Arial" size="2">View Shopping Cart</font></b></a></td> </tr> <tr> <td width="100%"> <a href="../feedback.htm" style="text-decoration: none"><b><font face="Arial" size="2">Contact Us</font></b></a></td> </tr> <tr> <td width="100%"> <a href="../faq.htm" target="main" style="text-decoration: none"><b><font face="Arial" size="2">Frequently Asked Questions</font></b></a></td> </tr> <tr> <td width="100%"> <a href="../privacy_policy.htm" target="main" style="text-decoration: none"><b><font face="Arial" size="2">Privacy & Use Policy</font></b></a></td> </tr> <tr> <td width="100%"> <a href="../about_lightingforum.htm" target="main" style="text-decoration: none"><b><font face="Arial" size="2">About Lightingforum</font></b></a></td> </tr> <tr> <td width="100%"> <a href="../site_map.htm" target="main" style="text-decoration: none"><b><font face="Arial" size="1">Site Map</font></b></a></td> </tr> </table> <table border="0" width="450" id="table1"> <tr> <td colspan="3"> <h1 align="center"> <a target="_top" href="light_emitting_diode_led_index.htm" style="text-decoration: none"> <font face="Arial" size="3">Light Emitting Diode Lighting Products</font></a></h1> </td> </tr> <tr> <td width="450" colspan="3"> <b><font face="Arial" size="2">Light-Emitting Diodes (LED’s) are solid-state semiconductor devices that convert electrical energy directly into visible light.  LED bulb technology has advanced by leaps and bounds in recent years, and continues to improve.  LED light bulbs have a functional lifetime that is far longer than the more traditional lighting technologies.</font></b></td> </tr> <tr> <td width="150">  </td> <td width="150"> <b><font face="Arial" size="2">LED Benefits:</font></b></td> <td width="150">  </td> </tr> <tr> <td width="450" colspan="3"> <ul> <li><b><font face="Arial" size="2">LED light bulbs generally use significantly less energy than incandescent bulbs. (up to 70%-90% energy savings)</font></b></li> <li><b><font face="Arial" size="2">LED light bulbs typically experience extremely long life compared to incandescent light bulbs. (up to 100,000 hours)</font></b></li> <li><b><font face="Arial" size="2">LED light bulbs are generally environmentally friendly and do not contain mercury.</font></b></li> <li><b><font face="Arial" size="2">LED light bulbs ARE the future of lighting.</font></b></li> <li><b><font face="Arial" size="2">LED light bulbs do not emit harmful UV rays.</font></b></li> <li><b><font face="Arial" size="2">Many US states, countries and the EU phasing out incandescent bulbs in the near future.</font></b></li> </ul> </td> </tr> <tr> <td width="150"> </td> <td width="150"> </td> <td width="150"> </td> </tr> <tr> <td colspan="3"> <p align="center"><font size="1" face="Arial"> <a href="http://www.lightingforum.com" target="_top" style="text-decoration: none">Lightingforum.Com All Rights Reserved.</a></font></td> </tr> </table> <p><font face="Arial" size="2">Light-Emitting Diodes (LED’s) are solid-state semiconductor devices that convert electrical energy directly into visible light.<br> <br> The inside of an LED is made up of various semiconductor materials. When an electrical current passes through the diode, the recombination of positive and negative charges within the different compositions results in the emission of photons (light). The selection of different semiconductor materials will affect the frequency (color) of the emitted light. LED’s are direct-current (DC) devices that require a transformer to convert alternating current (AC) to DC. The transformer also maintains a quality electrical supply for the LED device.<br> <br> Almost all of the energy in an LED radiates within the visible spectrum. By contrast, incandescent light sources have the lowest efficiency of all conventional sources because a major portion of its emitted energy appears in the infra-red (IR) region of the spectrum. Other sources, such as fluorescent and HID lamps have a higher efficiency but still have loss mechanisms in the electrodes and within the discharge itself. Fluorescent lamps have additional losses in the conversion of the UV radiation to visible radiation by the phosphor.<br> <br> Advantages of using LED technology include:•High-levels of brightness and intensity •High-efficiency •Low-voltage and current requirements •Low heat •High reliability (resistant to shock and vibration) •No UV Rays •Can be easily controlled and programmed <br> <br> The Future of Light<br> Over the past several years, LED technology has advanced by leaps and bounds. In the past, lack of colors and the low intensity made LED’s useful only as indicator lights. As the manufacturing methods and technology have improved, the LED has quickly found itself suitable in many more applications. As this technology advances further and more applications are attained, the light emitting diode will be the light source of choice for virtually all lighting scenarios.<br> <br> Long Life Reliability<br> LED’s have a functional lifetime that is far longer than the more traditional lighting technologies. However, contrary to some claims, LED life is finite, and will vary with color and chip make-up. LED’s will degrade over their life span.<br> <br> An LED can last from 30,000 to 100,000+ hours, almost 50 times longer than most incandescent light sources (2000 hours) or up to 10 times longer than fluorescent sources (10,000 hours). <br> <br> Long Life: <br> Realizing rated LED lamp life is dependent on meeting LED manufacturer’s recommendations for:<br> - operating temperature<br> - operating voltage & current<br> - electrical junction temperature<br> - thermal dissipation<br> <br> Efficacy<br> <br> The luminous efficacy (lumens/watt) of LEDs vary with color. Currently white LEDs are measuring between 20- 60 lm/W. This variance is subject to differences in chromaticity as well as wattage. The U.S. Department of Energy recently released a study that estimates efficacy to be 100 lms/W by 2010. By one estimate, replacing the incandescent traffic signals in the United States alone with LED signals would save nearly 2.5 billion kWh annually. Red traffic lights, for example, pay back their initial investment in 2.5 to 3 years through energy savings. Savings due to reduced maintenance are significant, and can be a leader in cost savings when replacement is difficult or expensive.<br> <br> <br> Reliability and Lumen Maintenance<br> Lumen maintenance is the amount of light emitted from a source at any given time relative to the light output when the source was first measured. This is usually expressed as a percentage. If you've ever changed a light bulb and noticed how bright a new bulb is when compared with the older bulb, you're seeing the effects of lumen depreciation. This steady decline over time is known as lumen maintenance (L). The materials inside the bulb will continue to deteriorate until finally the bulb will no longer emit any light. This is known as the bulb's mortality (B). With conventional light sources, the bulb usually fails before our eyes notice the change in lumen maintenance.<br> LED’s also experience lumen depreciation but it happens over a much longer period of time, usually tens of thousands of hours. Compared to conventional light sources, you notice very little degradation of light with LED’s.<br> <br> Benefits of LED Bulbs<br> a few reasons to go LED....<br> <br> - Save money and energy by using LED bulbs. Generally, an LED consumes less than 0.1 watt to operate. This incredibly low consumption means you will save on your energy costs right from the start.<br> <br> - The typical LED bulb will last for 50,000 hours. This is over 10 Years of light from One Bulb used half the time. Compared to an incandescent bulb, which lasts 1,000 hours, a halogen bulb lasts 2,000 hours, and a compact fluorescent bulb may last up to 10,000 hours.<br> <br> - The extremely long life of an LED bulb will virtually eliminate your maintenance costs. There will be no need to change light bulbs throughout the year.<br> <br> - LED’s are environmentally friendly, they are made from non-toxic materials unlike fluorescent bulbs which contain Mercury. <br> <br> The study results show that over the entire life of the bulb – from manufacturing to disposal – the energy used for incandescent bulbs is almost five times that used for compact fluorescents and LED lamps. <br> <br> The energy used during the manufacturing phase of all lamps is insignificant – less than two percent of the total. Given that both compact fluorescents and LEDs use about 20 per cent of the electricity needed to create the same amount of light as a standard incandescent, both lighting technologies put incandescents to shame. <br> <br> Using high power Light Emitting Diode as a replacement for tungsten filament lamps and halogen lamps. We offer a variety of household solid lamps, including floodlights, spotlights and track lighting, colored and color changing lights, and more. We also have high power solid lamps using the newest SMD technology. These solid lighting output more light while using even less electricity. It can be used with your existing light fittings. Available as Edison E27, MR16 (2 pins), GU10(bayonet), PAR series etc fittings. Green Light Source, Energy efficient lighting products, home solid lamps<br> <br> LEDs are better energy efficiency over incandescent bulbs and most halogen bulbs, Saving energy 80% to 90% <br> LEDs are very long operating life (up to 100,000 hours) <br> Low voltage DC operation (12V AC/DC) or Mains voltage operation (Input voltage between AC 85V and AC265V, Or any voltage for customized design.) <br> Cool light output (no UV or heat energy) <br> Narrow, medium and wide angle lenses <br> Any combination of lighting colors (Warm White (2700K to 4300k), Daylight white / Pure White (5000K to 6500K, it is equivalent to natural sunlight in color), Cool white (up to 8000K), Amber, Orange, Pink, Red, Cyan, Blue, Royal Blue, Green) <br> <br> The familiar incandescent Edison bulb debuted 130 years ago, on December 31, 1879. And the next day, its death spiral will begin. Australia has imposed regulations that will phase the bulb out in 2010 and the European Union will follow in 2012. <br> <br> The U.S. meanwhile, will get rid of them through new efficiency regulations in stages. 100-watt incandescents will vanish in 2012, followed by 75-watts a year later and 60-watts a year after that. <br> <br> LEDs (Light Emitting Diodes) are solid light bulbs which are extremely energy-efficient. Until recently, LEDs were limited to single-bulb use in applications such as instrument panels, electronics, pen lights and, more recently, strings of indoor and outdoor Christmas lights. <br> Manufacturers have expanded the application of LEDs by "clustering" the small bulbs. The first clustered bulbs bulbs were used for battery powered items such as flashlights and headlamps. Today, LED bulbs are made using as many as 180 bulbs per cluster, and encased in diffuser lenses which spread the light in wider beams. Now available with standard bases which fit common household light fixtures, LEDs are the next generation in home lighting. <br> <br> The high cost of producing LEDs has been a roadblock to widespread use. However, researchers at Purdue University have recently developed a process for using inexpensive silicon wafers to replace the expensive sapphire-based technology. This promises to bring LEDs into competitive pricing with CFLs and incandescents. LEDs may soon become the standard for most lighting needs. We are following these developments with interest and will report the latest updates in this research.<br> <br> CRI - Coloring Rendering Index. CRI represents the quality of light and its faithfulness to render colors correctly. Some LED bulbs, for example, features a CRI of 75 for Cool White and 80 for Warm White making them one of the highest in the industry.<br> CCT - Correlated Color Temperature is the measure used to describe the relative color appearance of a white light source. CCT indicates whether a light source appears more yellow/gold/orange or more blue, in terms of the range of available shades of "white." CCT is given in kelvins (unit of absolute temperature).<br> RGB - stands for red, green, and blue, the three primary colors of light. When the primaries are mixed, the resulting light appears white to the human eye. Mixing the light from red, green, and blue LEDs is one way to produce white light. The other approach is known as phosphor conversion [see below].<br> Luminous Flux - the flow of light measured in lumens. With light bulbs, it provides an estimate of the apparent amount of light the bulb will produce.<br> <br> LED Colors <br> <br> Red - red is the traditional color for maintaining night vision. <br> Green - green is now the preferred color for pilots and the military. The green color is also great for retaining night vision, and it doesn’t erase the red markings on maps and charts. <br> Blue - many people like the blue because it is very easy on the eyes. Blue appears to be a good reading light for elderly eyes. Elderly folks report that they can read under the blue light for hours without eyestrain, compared to severe eyestrain in less than 30 minutes with incandescent lighting. <br> White - the most popular of the LED colors. It produces a soft white light, without harsh reflection, glare or shadows. <br> Amber - LED amber bulbs do not attract flying insects, as do ordinary white bulbs. Amber LEDs are used outdoors in areas such as patios and decks where insects flying around lights are a nuisance.</font></p> </body>