led flat panel light Emitting Diode have improved

The first display LED lighting systems are also starting to appear on the market, but it will be at least five to ten years before effective led panel light solutions will start to appear in mainstream shop lighting.

The Future of LED Lighting

In the coming years, the light output of LEDs will continue to increase, enabling mass-market general lighting applications from approx 2010 onwards. The first effective general LED solutions to replace incandescents will appear on the market over the next two to three years, but initially they will be relatively expensive.

LED Lights as a Sustainable Solution to Replaces Incandescent Lights.

led flat panel light Emitting Diode have improved enough to transition from being a source of ambient lights to a replacement for incandescent and other traditional forms of lighting. Not too long ago I wrote in the technical answers to questions on my website for solar outdoor lights that: "Solar LED lights were great for outdoor use but are not close to replacing incandescent bulbs for inside lighting." Well my recent reading and research have proven me incorrect.

led flat panel light present many advantages

led flat panel light present many advantages over traditional light sources including lower energy consumption, longer lifetime, improved robustness, smaller size ( enabling LED's to be easily populated onto printed circuit boards.) and faster switching (LED's light up very quickly. A typical red indicator LED will achieve full brightness in microseconds, and LED's used in communications devices can have even faster response times.). Thus their utility value is very high. Maybe the greatest advantage of all is that as the color of the light depends on a specific variable (i.e.- the energy gap of the semiconductor) thus LED's 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 for a vast range of applications which previously used the color filtering process.

Further advantages of led panel light Manufacturer exist, among them efficiency of an LED is prominent. LED's produce more light per watt than incandescent bulbs, and wastage of energy is minimal, as LED's 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. Further as light is emitted from a solid state material, greater shock absorption capability is present in the LED lights. Further, LED's do not contain mercury, unlike most fluorescent lamps.

As led panels is becoming increasingly popular

As led panels is becoming increasingly popular in architectural lighting, task lighting, medical lighting (particularly for use in surgical theatres), transportation, entertainment, and even household lighting. This article intends to be a comprehensive guide to their utility, what the advantages that LED lighting possesses over other types of lighting and how to select an appropriate power source for the LED lights.

First, what IS led panel light? A light-emitting diode (LED) is an electronic light source. LED's are based on the semiconductor diode. When the diode is forward biased (switched on), electrons are able to recombine with holes and energy is released in the form of light. This effect is called electroluminescence and the color of the light is determined by the energy gap of the semiconductor.

The super bright panel lights led

It is advisable to have two flashlights when camping outdoors. The smaller flashlight can be used so that when you are looking for something, you don't have to wake up everybody in the tent. Another function with LED torches in case you don't want to bring an extra flashlight is to set it to "dim". Most led light panels have a switch to either set to dim or bright light. The dim light can be used in order to conserve the batteries. But even dim lights in LED flashlights can be brighter than the regular incandescent bulb flashlight. Having a super bright LED flashlight doesn't mean that you have to carry extra batteries. The LED flashlight can run as much as ten times longer on batteries than the regular incandescent bulb flashlight.

The super bright panel lights led may be a bit more expensive than the regular incandescent flashlight but it can be worth it when it comes to its use. Getting a LED flashlight can save you money in the long run because you don't have to replace the batteries as often as you would with regular incandescent bulb batteries and the LED bulb can last as long as ten years so you don't have to worry about its' bulb burning out.

There are super bright panel lights commercially available

There are super bright panel lights commercially available today. The most recent super bright LED flashlight available in the market today is the one that gives out 742 lumens, the kind of light that LCD overhead projectors use. Other super bright flashlights may have more LED bulbs installed and one can adjust the brightness or dimness of the flashlight when they opt how many bulbs will be turned on. But in choosing super bright LED flashlights, one has to consider the lumens output, rather than the number of LED bulbs installed. One LED bulb can be as bright as ten LED bulbs.

One great feature of having a super bright led lighting panel or torch is that it will give bright light using simple AA or AAA batteries. The LED flashlight will also run longer on these batteries than the regular incandescent bulb flashlight. The brightness of an LED flashlight depends on the power output from its energy source. Super bright flashlights used by policemen use about three watts. The lumens or bright light of these police flashlights are at ninety lumens. The power input and output also determines the hours that you can use your batteries with the LED flashlights.

figured in the led flat panel light Manufacturer

If there was an apparent drawback, at least from the consumer perspective, it would be the expense. An LED PAR38 12 Watt light can cost 10 times as much an incandescent light. In fact, however, the expense of LEDs is not a drawback at all. Once, energy and replacement costs are figured in the led flat panel light Manufacturer actually save money. Simply consider the cost of 24 extra replacements of the incandescent light. Then factor the extra energy use and its really not even close. We did not include that in the summer LEDs put less load on the air conditioning. Its clear the LED light ultimately saves money, but many are reluctant to purchase due to the longer term of the payback.

So if your convinced, and you want to 'go LED' what are some of the best products? In fact there is a broad spectrum of lighting possibilities. Everything from PAR lights to recessed ceiling lights are available all at costs that payback before too long. You should also consider the source of your LEDs. The best LEDs (in this authors opinion) are produced by CREE and SSC. CREE is a US company and SSC is in Korea. The LED fixtures may be made by any manufacturer but try to verify the source of the led panel light home depot.

There are other aesthetic benefits of led panel light Manufacturer

led flat panel light uses 80% less energy than incandescent lighting.

LED lighting produces 500% more light per Watt.

LED lights have lenses that focus the light into a pattern of equal distribution adding to energy savings as light is not wasted bouncing in unneeded directions.

LED lights do not produce as much heat. This can save on energy and maintenance costs.

LED lights do not emit significant UV or IR radiation. IR is back to the heat issue, and UV is something we generally try to avoid.

LED lights last 50,000 hours or about 25 times longer than incandescent lights. This saves obviously on maintenance and disposal.

LED lights do not contain mercury common in fluorescents.

The above is meant to be a list of environmental benefits. There are other aesthetic benefits of led panel light Manufacturer. For one the color temperature can be precisely controlled. Secondly, the lenses allow for better lighting rendition. This pretty much summarizes most of the benefits, and there are not any environmental risks posed by LEDs. I would simply note that while other green technologies may have some difficult drawbacks to overcome that the advantages of LED lighting are fairly strait forward and clear cut.

used in the high-power led panel light construction

First thing to do when designing thermal management plan is to ensure that in any case you will be in the admissible borders of the temperature. That means that none of the materials used in the high-power led panel light construction could fail during the exploitation because of the heat.

LED lighting is often overlooked in 'green building' literature while more expensive and less satisfactory environmental solutions are pursued. The purpose of this article is to discuss some of the benefits of LED lighting, and to argue that led flat panel light should be considered an essential element of any 'green' building, house, or construction project. Let's start with some of the benefits of LEDs. Pardon the list but there are so many it is difficult to work it into a paragraph.

high-power panel lights led needs to work all the time

Of course "thermal runaway" usually happens only with colour sensor feedback systems which do not monitor or manage heat. One simple protection could be a thermal sensor constantly measuring the junction temperature and when it reaches a temperature that is too high the system is shut down. It will go on again when the temperature is considered safe but usually this is not an option because the high-power panel lights led needs to work all the time.

More reliable options are needed and one good option is to use heat spreading material like for example natural graphite. When it is applied to the heating body this material will vastly conduct the heat through its capacity and if it is installed properly it will quickly conduct the heat to the atmosphere leaving the endangered body safe.

The brute force method in which led panels shut down is proofed to be useless in most systems. The thermal management should be the most important aspect of the high-power LEDs technology only seconds away from the colour mixing firmware.

Almost every aspect of the high-power panel lights

Almost every aspect of the high-power panel lights is linked to the junction temperature of the LED. These aspects are the dominant wavelength, luminosity and the forward voltage and they are the most important criteria of the high-power LED.

One significant thermal problem with high-power LEDs is called "thermal runaway". It happens because when the colour sensor reports that the luminous intensity is not high enough the processor drives the LED harder and by doing this it uses more power and when more power is used more heat is generated. More heat means higher junction temperature and higher junction temperature again decrease the luminous intensity. And again the colour sensor reports low light emission and the process circles all over again until the temperature of led lighting panel reaches critical state and the LED overheats and permanently fails.

In high-power led panel light home depot it is not that short

In the tungsten bulb the heat trajectory is short. It starts with the thermal resistance from the filament to the glass and it ends with the resistance from the glass to the atmosphere. In high-power led panel light home depot it is not that short because of other parts that stand on the way like the slug, the board and the heat sink. However it is very crucial for us to understand the difference of the heat delivering - in high-power LEDs we talk about conduction, not radiation.

The temperature of the LED is directly linked to its colour and if a precise colour is needed the optical design should be optimized. Different colours are made by combining base colours and for white colour - all colours are used. That means that if a white colour is used, the temperature will be higher than the temperature in all other cases. Usually a colour sensor is used to insure the proper colour during the temperature changes and the aging of led panel light manufacturers.

One problem for these led panel light Manufacturer

One problem for these led panel light Manufacturer could be the temperature and all specifications are usually guaranteed at 25 degrees centigrade. Of course the operation/storage temperature could usually vary from -40 to +85 degrees centigrade but temperatures close to these limits are not well-advised. There is usually a chart that shows how the temperature of the LED is changed in time and the critical temperature which could destroy the LED and of course the time (usually in seconds) which the LED could endure the temperature before it is permanently damaged.

The thermal problems of the high-power led flat panel light Manufacturer are maybe the most important aspect of their technology and this is why we will discuss them on a large scale.

Unlike other light sources like the incandescent tungsten light bulbs, high-power LEDs do not radiate heat. Instead of that, they conduct heat to their thermal slug. That means that heat goes a longer way to reach the atmosphere.

high-power led flat panel light

Now let's take a look at their characteristics. First we will go through the electro-optical characteristics. The first one is called peak wavelength. This is by definition the wavelength that suffers the lowest loss. Usually it is provided in nanometers.

Next there are voltage characteristics - forward and reverse voltage. Every led panel light has two ways of inclusion - the forward one in which the necessary voltage is lower and the reverse one usually with more than 5 V.

The axial intensity comes to show the light intensity on the axial line. Luminous flux is another part of the specification table of the high-power led flat panel light and it is the measure of the perceived power of light. After that comes the viewing angle to provide data on what angle the light is directed on the objects or generally on what angle you will be able to see the light produced from the LEDs. Emitted colour is the colour of the light. It could be orange/red, yellow, green, blue or white. The power dissipation is another important criterion and for example it could be 120 mW. It shows the power consumption of the LED.

aggressively marketed led panel light

By now the chances are very good that you've heard a lot about LED lights. Since around 200 when they began to compete directly with traditional light sources in terms of output and light quality, manufacturers have aggressively marketed led panel light as the next wave of lighting technology, and with good reason. With new energy standards being enacted at a federal level and consumers really beginning to feel the pinch of high fuel and energy costs, energy efficient lighting has become a very attractive way to reduce these costs. Since boaters have felt these costs more intimately due to the nature of producing electrical power onboard their boats, it's no surprise that the boating industry is possibly one of the currently most LED saturated markets. Nowadays, if you are looking for a new light fixture or lamp for your boat, chances are you've seen LED designs outnumber traditional halogen and incandescent two to one.

One of the first things boaters wonder about when considering a change to LEDs is whether or not they can simply replace their existing incandescent bulbs with led flat panel light versions. Since the technology behind LEDs is radically different than that of the traditional light bulb, this is a quite valid concern. Fortunately for us, LEDs are extremely versatile as well as efficient and manufacturers have come up with a wide variety of ways to upgrade, including LED bulbs which install and operate no differently than the tried and true light bulbs we've grown used to. However, it is not always possible to simply change out an incandescent for an LED, and in those cases it is necessary to go with an entire new fixture instead.

Is panel lights led Really worth the money

Is panel lights led Really worth the money?

The simple answer is absolutely! This is obviously just my own two cents on the matter. I've worked with high definition televisions long enough to know the actual benefits of an LED television. Frankly, I actually do not think this subject is relevant, since soon all TVs will be LEDs (LCD-LED). As technology moves forward, LEDs keep getting more and more sophisticated. Pure LCD HDTVs are yesterday's technology and will soon be obsolete. In order to keep things simple, these are the overall points to keep in mind when making the decision to get an LED TV in place of an LCD only television; led panels work off less power, offer you a much more accurate response time as opposed to fluorescent lighting, are equipped with local dimming, are noticeably lighter and offer you overall greater image quality.

All led lighting panel TV sets that incorporate

LED HDTV and local dimming:

TVs have significantly evolved since the good old tube TVs. All led lighting panel TV sets that incorporate the local dimming setting are proficient in recognizing specific dark areas of the image that is showing on your television. This provides the ability for more detail to shine through on the scenes that are noticeably darker than others. Local dimming functions by turning off certain pixels, allowing for a much better contrast ratio and deeper levels of black. The pixels turn off then on as a result of the ambient lighting that's surrounding you. Think of this like when you're trying to watch television with the glare from the sun beaming through your window, or the room light piercing through your TV screen. The led light panels HD television automatically converts the elements of your image as needed, so you are able to keep admiring the image on your TV screen without missing your favorite scene. This is clearly a really nice feature to have if you ask me. LCD only televisions don't include this option.

passive led panel light manufacturers from overheating

While LED lights burn several times longer than incandescent or CFLs and require less than half the energy, they need some form of passive led panel light manufacturers from overheating. The LED circuit board, which is made from 1.6-2mm thick aluminum, will conduct the heat from the dozen or so LED elements to the metal heatsink frame and thus keep temperatures in check. Aluminum-backed PCBs are sometimes called "metal core printed circuit boards," and though made of a conductive material the white coating is electrically isolating. The aluminum PCB is screwed in place within the heatsink which forms the lower half of the panel lights bulb.

After this, the power connector board is fixed in place with adhesive. The small power supply converts 120/240V AC mains power to a lower voltage (12V or 24V), it fits in the cavity behind the aluminum PCB.

led panel light home depot components include all integrated chips and chip sockets

Let's take a look at the manufacturing steps for a typical led flat panel light Manufacturer bulb meant to replace a standard incandescent bulb with an Edison Screw. You will see that it is a very different process from the highly automated processes used to manufacture our familiar incandescent bulbs. And, despite what you might imagine, people are still very much a necessary part of manufacturing process, and not just for testing and Quality Assurance either.

Once the larger sheets of LED circuit boards have passed through a solder reflow oven (a hot air furnace that melts the solder paste), they are broken up into the individual small circuit boards and power wires manually soldered on.

The small power supply housed in the body of the light bulb goes through a similar process, or may be delivered complete from another factory. In either case, the manufacturing steps are the same; first the PCB passes through SMT lines, then it goes to a manual dual in-line package (DIP) assembly line where a long row of factory workers add one component at a time. DIP refers to the two parallel rows of leads projecting from the sides of the package. led panel light home depot components include all integrated chips and chip sockets.

The aluminum PCB used in led flat panel light is coated

The aluminum PCB used in led flat panel light is coated with a non-conducting material and conductive copper trace lines to form the circuit board. Solder paste is then applied in the right places and then Surface Mount Technology (SMT) machines place the tiny LED elements, driver ICs, and other components onto the board at ultra high speeds.

The round shape of a traditional light bulb means that most led panel light Manufacturer printed circuit boards are circular, so for ease of handling several of the smaller circular PCBs are combined into one larger rectangular PCB that automated SMT machinery can handle. Think of it like a cupcake tray moving from one machine to the next along a conveyor belt, then at the end the individual cupcakes are snapped free from the tray.

supply energy to led panel light

So what else is available in state-of-the-art LED controls? It seems what we really need is a sort of closed-loop device that looks at the incoming voltage and maintains the constant current feeding the LEDs even as the voltage fluctuates, all of that while keeping minimum heat. And, you guessed it, the device exists! It's called a DC/DC Buck Power Converter. It is an expensive way to supply energy to led panel light, but it has all the advantages that we are looking for.

The Buck Power Converter is a complex little device, but its function is somewhat simple. To describe it in layman's terms, it basically takes an energy source and switches it on and off. During the "on" state, the energy is stored in an inductor and during the "off" state, the inductor releases the energy to the LED. The ratio of "on" and "off" time is called the duty-cycle. For example, a 25% duty-cycle would pass to the LED only 3V from a 12V source. All we need to do is control the duty-cycle according to the input voltage and we get constant current feeding our LED. The Buck Power Converter controller does this by monitoring the current to the LEDs through a current-sense resistor and adjusts the duty cycle either up or down to correct the current in order to match the led flat panel light optimal current requirement. This way we can push the envelope on the brightness of the LEDs without worrying that the source voltage fluctuations will take us past the maximum rated current of the LED and end up with a fried LED cluster.

it is used by many panel lights led cluster manufacturers

What if we had a type of resistor which could accommodate the changing voltage? There is such a device, and it is used by many panel lights led cluster manufacturers. The device is called a Linear Regulator, and it is a small step up in control technology from the primitive ballast resistor. A Linear Regulator is a low-cost control method which can be thought of as a variable resistor that varies the resistance according to the load in order to provide a constant output voltage to the LEDs. Because it is still a resistive device, it controls excess energy (above that required by the LEDs) by turning it into heat. But wait a minute, isn't HEAT the great enemy of LEDs? That's right! Of course, with proper design one could dissipate some of the heat, but overall, Linear Regulator can only work for small voltage variations, which is fine for some applications, but again, not suitable for the full of battery banks, solar panels and generators and inverters of our electrically hostile marine world.

Hopefully the above makes it very clear why ballast resistor bulbs and cheap bulbs have no place on a boat. From what you have read in the previous paragraphs, you are now considerably better informed than the average person looking for led panels. Not only that, you are most probably better informed than most of the uninformed merchants out there selling LED bulbs to the unsuspecting boater.

This makes automotive led light panels inexpensive

Most automotive and inexpensive led lighting panel are based on the ballast resistor model. They work fine in automotive because the voltage variations are smaller than those found in the marine environment and also to the fact that most LEDs in the automotive world are used for turn signals or brake lights. These signals are not on for a long period of time so heat is not a problem. One can also use a resistor that will handle 14V while maintaining an acceptable current level for the LED generate enough light. This makes automotive led light panels inexpensive, but unsuitable for the marine environment.

Now that we know that a ballast resistor is not suitable for our environment, what do we do next? Let's start with what we have learned so far. We know that a resistor is a passive device that can't maintain an even current with a changing voltage. So, what are our other options?

Before long these LED Displays were producing brighter light

Before long these LED Displays were producing brighter light and even orange-colored electroluminescence when Gallium Phosphide (GaP) substrates were used. By the mid 1970s, Gallium Phoshide (GaP) itself along with dual Gallium Phosphide (GaP) substrates were being used to produce red, green, and yellow light. This ushered in the trend “towards [LED use in] more practical applications” such as calculators, digital watches and test equipment, since these expanded colors addressed the fact that “the human eye is most responsive to yellow-green light.”[4]

Conventional LEDs have been used for indication and display applications for several decades. The inherent benefits of led flat panel light technology are well-known and documented, and include, maintenance and power savings, as well as performance features that are taken for granted by electronics-savvy consumers such as durability, reliability, longer life span, and consistent color and brightness levels. These benefits, combined with society's growing environmental concerns and subsequent demand for green, energy-efficient products, have continued to drive the development of LEDs for challenging new industries and markets, such as general illumination for commercial and residential buildings. 

concept for LED Sign first arose in 1907

Although considered relatively novel, the concept for LED Sign first arose in 1907 when Henry Joseph Round used a piece of Silicone Carbide (SiC) to emit a dim, yellow light. This was followed by experiments conducted by Bernhard Gudden and Robert Wichard Pohl in Germany during the late 1920s, in which they used “phosphor materials made from Zinc Sulphide (ZnS) [treated] with Copper (Cu)” to produce dim light.[3] However, during this time, a major obstacle existed, in that many of these early LEDs could not function efficiently at room temperature. Instead, they needed to be submerged in liquid nitrogen (N) for optimal performance.

This led to British and American experiments in the 1950s that used Gallium Arsenide (GaAs) as a substitute for Zinc Sulphide (ZnS) and the creation of led panel light that produced invisible, infrared light at room temperature. These LEDs immediately found use in photoelectric, sensing applications. The first “visible spectrum” LED, producing “red” light was created in 1962 by Nick Holonyak, Jr. (b. 1928) of the General Electric Company who used Gallium Arsenide Phosphide (GaAsP) in place of Gallium Arsenide (GaAs). Once in existence, they were quickly adopted for use as indicator lights.

using two charcoal strips to produce LED outdoor signs light

Light Emitting Diodes (LEDs), “semiconductors that emit light when zapped with [positive polarity] electricity,”[1] are on the verge of taking over the commercial and consumer sectors of the lighting industry. With greater efficiency, longer useful lives, and their “clean” nature, LEDs are the future of light, pushing traditional incandescent and fluorescent bulbs toward extinction. Only the higher production costs for led display have extended the existence of traditional bulbs.

When viewing the history of traditional bulbs, the higher costs associated with producing LEDs is not an insurmountable hurdle to overcome. The incandescent bulb lingered for about 70 years before supplanting “candles, oil lanterns, and gas lamps” as the main source of lighting.[2] When the first crude incandescent bulb was created in 1809 by Humphrey Davy, an English chemist, using two charcoal strips to produce LED outdoor signs light, it remained impractical. Later when the first true incandescent bulb was created by Warren De la Rue in 1820, utilizing a platinum filament to produce light, it was too expensive for commercial use. Only when Thomas Edison created an incandescent bulb utilizing a carbonized filament within a vacuum in 1879, did the incandescent bulb become practical and affordable for consumer use.