LED lighting systems architecture of choice depends on your design goals is a low-cost, high-efficiency, or the smallest PCB area. In general, less than 25W of LED lighting system does not require power correction, so you can take a simple topology architecture, such as PSR or Buck topology. 25W-100W LED lighting applications require power correction, it is generally a single-stage PFC and quasi-resonant (QR) PWM flyback topology. More than 100W LED lighting applications generally use efficient LLC topology and two-stage PFC.

Less than 25W power LED lighting solutions the PSR or Buck topology can be used, mainly because this power range for small design, the emphasis on the simplicity of the design solutions for medium power (25W-100W) suitable for single-stage PFC quasi-resonant ( QR) PWM, flyback topology. SangCheolHer said, "high power solutions (> 100W) suitable LLC, QRPWM, flyback topology design. LLC and QR better performance from the point of view of efficiency; while PSR program without secondary feedback, simple design, small size than other programs. "

Cheng Chung also said: "the main applications of less than 25W LED lamps in interior lighting, they are mainly low-cost flyback topology. Transformation of ON Semiconductor NCP1015 and NCP1027 monolithic IC integrates a built-in high-voltage MOSFET and PWM controller can effectively reduce PCB area and the volume of the lamps, 25W maximum power output (230VAC input). "

For non-isolated to less than 25WLED lighting applications, if the input to the output conversion ratio is low, so simple buck converter can be the choice of a low-cost and small size. Isolated valued efficiency topology architecture, like the British quasi-resonant flyback topology of the the Feiling CoolSETICE2QS series devices is a good choice,. "AlexanderSommer said. Infineon is the first company to offer digital quasi-resonant flyback controller IC suppliers.

25W-100W power range typical LED lighting applications, street lighting (district roads) and in public places such as parking. Power conversion efficiency, cost-effective implementation of PFC function and high color quality is the most important of the three major technical challenge. For example, commercial lighting and street lighting applications, longer service life and lower maintenance costs resulting is helping to overcome the higher initial cost of entry barriers. 25W to 100W LED lighting led products applications power factor requirements, and therefore need to increase the power factor correction circuit.

"This circuit can be used to the traditional two-stage structure, the active non-continuous mode power factor correction (PFC) circuit plus the DC-DCPWM transform circuit, such as power factor correction controller ON NCP1607, NCP1607 the external circuit is very simple and can provide a good performance. "Zheng were before", it is recommended for high efficiency, low cost and small size LED program is a single-stage PFC circuit, it can achieve low-voltage DC output of the power factor and isolation and has significant cost advantages, will become the mainstream of the medium-power LED lighting program. Semiconductor NCP1652 for the realization of a single-stage PFC circuit provides optimum control program. "

Shenzhen Secom Telecom is using SiliconLabs the C8051F3XX series of 8-bit MCU by way of software to achieve PFC. The company's assistant market manager Huang Feng Sun said: "We for the home city electric (180V-260V) input 10W-30W low power LED lighting applications to develop the all-digital LED lighting solutions, available software control mode to achieve the PFC values up to 0.95. compared with hardware PFC, the software program in the premise of ensuring the same performance, but also has a higher flexibility, adaptability and scalability The program uses LED drive maximum output current of the MIC3230 350mA, up to 12 1W LEDs can be driven well positioned to meet the needs of indoor lighting.

AlexanderSommer said: "For the 25W-100W power efficiency and performance in a very wide input and / or load range (such as dimming) LED lighting led distributor applications, it is recommended that the use of quasi-resonant flyback topology with a separate PFC stage structure. typical efficiency of up to 90% can be achieved. "

100W or more applications, including the main road and highway lighting (It should be up to 20K lumens brightness or more, and a 250W power supply input) and professional applications, such as stage lighting and architectural floodlighting. A key driving force in high-power applications using E14 led reliability and low power consumption of the low cost of ownership. For example, the system efficiency can be compared with a metal halide and low pressure sodium lamps. The initial cost is more likely to continue in the short term barriers to entry in the market.

While two years ago just 61% of lighting distributors stocked SSL, Ted Konnerth reports that the number has climbed to 91% even as lighting manufacturers and distributors struggle with the complexity of LEDs and electronic driver circuits.According to a recent survey of lighting industry executives and buyers, in less than two years the number of lighting distributors stocking LED-based products spiked by more than 50%. A March 2012 survey of the group revealed the significant jump. It indicates that 93% of electrical distributors are stocking LED-based solid-state lighting (SSL), as compared to 61% found in a June 2010 survey. Still despite the growing support for SSL, the legacy lighting industry is in the process of adapting to LED technology and a completely new approach to selling lighting products.

 

Fig. 1.

Less than three years ago, many distributors deemed SSL too expensive to justify stocking, or even selling LED-based products. As Fig.1 shows, only 61% of distributors stocked SSL back in 2010, although 82% said they sold the products.

In 2010, many distributors felt LED lighting was fraught with complex issues: warranty questions, high price points, questionable efficiency claims, varying standards of performance, and confusion within the market. Fast forward to 2012. LED lighting is now understood to be a game-changing technology, one that’s energy efficient and financially gratifying in the long-term. Further, price points have dropped because of a rapidly growing technology emphasis, a production glut of LED emitter chips, and mass acceptance in certain markets such as commercial and outdoor-lighting applications.

LED technology is revolutionizing the lighting industry as more and more commercial lighting distributors are stocking LED lamps or fixtures, anticipating demand from a growing customer base. Similarly, manufacturers are seeking ways to stay ahead of the curve, producing innovative LED-based lighting solutions for the growing market.

200 distributors surveyed

The aforementioned survey, conducted by Egret Consulting Group – a retained search firm specializing exclusively in the electrical industry – confirms this dramatic shift. Most notable is the fact that more than 93% of distributors are stocking SSL equipment, and 71.5% stock both LED-based lamps and fixtures (Fig. 2).

The survey shows a steadfast confidence in LED-based lighting. More than 900 executives from the top 200 distributor companies answered the survey. The top 200 electrical distributors represent more than 10,000 branch or distribution-center locations throughout the United States and Canada.

Ultimately, demand is driving the uptake. Large-scale consumers are buying into the benefits of LEDs. Municipalities, large building owners and other institutions seeking a short return on investment with long-term financial benefits are turning to LED-based lighting solutions.

Fig. 2.

Given that LED technology is redefining the lighting industry, some of the biggest electrical lighting companies – i.e. Philips, Cooper, Hubbell and Acuity – are striving to find ways to change and stay relevant in a sector that is quickly becoming more technological and scientific. The Big four were slow to adopt LED technology due to legacy investments in traditional lamp sources, but have emerged in the past year with complete introductions of lamps and fixtures; as well as control solutions. Simply put, the biggest lighting companies in the world have grudgingly accepted the new dynamics of technology, innovation, and research and development.

Company leadership

For lighting companies, a big step in the journey to LED success is making additions to leadership at the top of organizations. Chief Technology Officers (CTOs) are mainstays at LED-component-manufacturing companies, but at lighting fixture companies they were non-existent -- even two years ago. Moreover, intellectual property (IP) hasn’t historically been a concern of lighting companies.

Technology and IP leadership now needs to be a top priority as technology and research drives innovation in the lighting world. To this point, intellectual property attorneys are being hired at the largest lighting companies to ensure innovation is protected from patent infringements.

Top electrical and lighting distributors are making changes too, following the lead of mega retailers like Home Depot, Menards and Lowes, which now have a growing number of LED-based lighting products on the shelves. When the CEO of a leading distributor, Graybar, openly embraces changing the company’s sales philosophy from “fulfillment” to “promotion,” the clarity of the industry’s adoption becomes apparent.

LED-based lighting will require new sales techniques to be successful. Sales people need to be proficient in electronics, software, and financial ROI when presenting LED products. Such a breadth of industry knowledge is tantamount to survival in this new era of electronics.

Industry initiatives

The path to success in SSL is becoming streamlined to a degree. Programs such Energy Star, Lighting Facts, and other Department of Energy (DOE) endorsements all help lighting manufacturers to document their product claims, and distributors and buyers to make valid comparisons among hordes of products flooding the market.

It’s apparent that SSL is a gateway for lighting companies looking for the path to becoming technology-minded. This wasn’t the case as late as a few years ago, when the threat of a higher cost LED-based lighting system thwarted many distributors from carrying such solutions. But as the new Egret survey shows, most have jumped on the bandwagon and embraced the LED renaissance. The overall benefits LED technology brings in terms of lighting, colors, automation, and energy savings are tough to argue against.

Still why are 6% of distributors still not stocking led lighting? The electrical industry has historically been technology-averse. There is little direct demand for new technology from distributors’ customers, so LED lighting requires pure sales efforts rather than order taking. There are people who believe the world is flat -- they will continue to sell incandescent and CFL technology for as long as they can find demand. For the rest of the industry, the LED market is expected to grow at a 40% rate annually until at least 2015. That’s a growth market!

The electrical industry has been largely inbred for a long time. New products meant new shapes, sizes, colors or mechanical modifications. LED lighting brings a new era to the overall electrical industry. Low voltage, electronic devices require new installation techniques, and enable control devices and measurement and reporting devices that can be integrated into building, area or global communication systems. Change is already here. As Winston S. Churchill aptly put it: “To improve is to change; to be perfect is to change often.”
from:ledsmagazine
More imformation about led manufacturer and led tube light in cpbay

LED lighting is not just the coming trend, but the efficiency wave for lowering costs. And like things needed, there’re costly upfront. Therefore, it really is to your best benefit to find out exactly which of the available LED Downlights work inside application you are thinking about.
Start with deciding prefer a downlight which will dim or otherwise not. Dimmable lighting is more expensive and is probably not precisely what you expect. LED china led manufacturer dimmable lights usually do not behave like incandescent and even fluorescent lights.

They’re going to maximize the light at the very top end without difficulty. What’s different would be the low end with the dimmer switch. It’ll cut at approximately 30 percent of power. It won’t dim as much as an incandescent bulb. Now you choose to dim without being disappointed because of the limitations.

Compatibility with all your existing recessed ceiling cans is usually not a problem. LEDs demand a extra depth but most cans is usually modified to receive them. You’ll find cans that are compatible without modification. Usually you’ll find a chart that lists compatibility but do not rely on them. Only the electrician can reliably determine compatibility. Electricians could also modify cans to just accept LEDs.

The lights appear in many diameters. Most examples range from 2 inches to inches. The design of cans and the amount of surrounds to hide the cans are nearly unlimited. What this means is you will not need to compromise on style or design issues.

You can find different bulbs available in downlights. Bulbs certainly are a given. You can just replace the present bulbs led distributor with your if your bases are compatible. You can even get LEDs specifically created for ceiling cans. This could work nicely in new construction. High are puck lights available likewise.

Certainly you’ll, in the end, reduce electricity. That is why you’ll want to view LEDs being an investment. Because of their durability, you simply won’t buy LEDs at anything much like the rate you obtain incandescent as well as compact fluorescent bulbs.

Being aware of what application you desire use your LED led supplier Downlights for will help you prepare need to the questions that count. Choose from straight on/off or dimmable. Know you can find differences between new construction and replacement applications. And still have a thrilling time locating the design and style that could make you happy without worrying about limited selection.

The annual Valentine's Day is the most romantic thing tyo received roses may be accustomed to seeing a variety of rare roses, just past Valentines Day can see colorful luminous rose. With the buy led cost reduction and the popularity of LED technology, the discerning the LED manufacturers, of course not put Guoqingrenjie economic hot spots, so there is the LED the creative light emitting roses this variety of colors discoloration, petal by translucent made of green plastic, hollow built-in low-power LED lights, colorful light revealing from the petals, rendering the whole flower Smart extraordinarily beautiful, change color through the bottom o
f the switch can be controlled, can become a colorful roses, use environmentally-friendly rechargeable batteries, the first use of up to one month. Such a beautiful flower full of light, even without anyone to own used as home decoration LED Nightlight led distributor is also a good choice.

 




More imformation about MR16 LED in cpbay

Blat of lighting design companies petal chandelier, inspired by the delicate petals of the chrysanthemum, all-aluminum material, intermediate use of high-power LED lamp as the light source, the divergence lampshade with light radiating each angle can is bright lightled light bulbs lighting House had roses lights , tulip lights , but in Chinese culture, the chrysanthemum has been more affected by people love, and was given the auspicious longevity auspicious meaning, coupled with the use of amber led bulbs lights a little like it would be more.

 









More imformation about best led flashlight in cpbay

This is a set of led lights, solar, Wooden, designed to be one of the super-loungers placed in parkland scenery beautiful and elegant environment for everyone to bring a pleasant experience as the rest used for public facilities, and integrate into the concept of energy saving and environmental protection . The designer LED light chair this very humane, as a whole, such as the graceful curve shape of the water droplets, the bottom of the beautiful wood carving decorative effect. Bar top solar panels, internal LED lights with daytime absorption power stored in the battery, not only to supply LED lighting in the evening, also through the USB interface, the rest by phone mobile devices such as charging. House of led bulbs are up to try to lie down, lying above the rest Entertainment play phone is certainly very enjoyable, even if no one is using as LED decorative lighting, public environment add beautiful Kejizhiguang to.

 





More imformation about smd led and led flashlight in cpbay

In the? Forces you to infinitely happy to be staying in these types of electrical occasions -- or for all the entry into the world that face men for instance Johnson Edison, arrive at think about it.

Imagine the perils of generating during the night time from the 1800s , often thinking that your chosen truck could possibly capture fire due to their wide open fire to your headlamp, or maybe having said that lumination can be snuffed out and about with a careless strong gust from breeze as well as splash of water.

Come on, man, how can you contemplate : an empty fire in your motor vehicle? Should probably punch with a few fender peel off stickers indicating "ACCIDENT Looking Towards HAPPEN" or simply "BEGGING For doing this.In . And every one for a bit of technology that might exclusively nominally mild on your path. Be grateful for atmosphere there were certainly no page views days past. Point out the application with me at night: conflagration.

Which means that, presented those Flintstone times of automobile heritage, our company is definitely ruined modest brats meant for solution. So we tend to beings for the way rarely contemplate headlamps except when they are really ruined, or possibly several moron is keeping regarding you over the reverse lane together with supports about higher.

Acquire HID and / or high-intensity relieve (also called xenon) headlamps. All the beautiful bluish-white cross-bow supports may be troublesome and also classy subject to do you want to you may be observing it all through. Intended for nerdspeak viewers, automobile blog ridelust.web relates to HIDs as "metal halide arc illumination who make use of a couple tungsten electrodes so that you can arc an influence electrically powered fee. This unique impose communicates when using the gas inside along with vaporizes alloy salt included in all the bulb, putting together a plasma screen in which discharges a truly severe gentle."

Dizzy nevertheless? Exactly what is necessary for please note usually "contamination including filth or perhaps dry pests for the camera lens may cause a large amount of glare being guided upward and also when it comes to many other road users.Inch This means individuals who own claimed HIDs ought to be responsible for these individuals or even associated risk watching extra individuals switch these from.

Assigned all the high-tech performance of your HIDs, an innovative children on your street is certainly damaging to adopt above.

In college, part of the subjects in your classes quizzed you to create computer undertakings that entailed soldering factors right onto printed regimen panels that we all produced our selves by way of "etching" the boards around ferric chloride. A number of of those assemblies called for minimal muti-colored nubs of light which usually, we had been informed, had been called Light emitting diodes, or even light-emitting diodes. Not only have these Light emitting diodes are available a number of color styles; additionally they would not warm such as customary incandescent lighting unit.

From people heady era of juvenile generation, in ways a Brought about monster features appropriately went into a auto-grade location.

Though credit standing to the initial standby time with the Headed concerning diverse production-use headlamps is bestowed upon Rolls royce (in it really is LS600 throughout 2009), Audi (in the area made available from PGA Trucks) can be broadly considered this voracious, keen customer for the originality with it's actually units. Now it's a brand seen as an vanguard in Encouraged headlamp technology.

PGA Autos google page rank specialist together with motorsports forex broker Menchie Ramirez continues which Led lights are extremely superior to common halogens because "it can be high efficiency -- right now four times for that reason. By just 2018, most of us hope so that it is 8 instances more cost-effective. It also posseses an indefinite services living and even reacts close to 10 times more speedily as compared with traditional incandescent light."

More than that, Ramirez claims that best brought about flashlight Encouraged lights can be environment-friendly since they do not consist of mercury.

Successfully communicating in, "The creation of any Brought furthermore established incredible inventive scenarios meant for interior and exterior lamps layout car without any proportions together with content. Combining many Led lights will allow engineering connected with adventures, identified as Brought about arrays. Most are quite washboard, small in size, in addition to need to have a lesser amount of house than standard lumination places. It enables graphic designers in order to advanced light functions with tightest settings like cornering devices, to illustrate.Centimeter

Ramirez in addition indicates in which LEDs greater level of far better than HIDs due to the fact "they tend to be better at the sight as they quite simply eliminate vivid substantial beams that could be drawing attention.In

Another advantage belonging to the Driven tends to be that (as mentioned) they never produce excessive warm up ( space ) thanks to some sort of lighting products system does not need heating up core part. A couple of the complications despite the fact that are generally, in accordance with ridelust.net: needing basins for your heat that comes within the back of the lamp fixture, additionally, the heat empathy of the Light emitting diodes, so this means they will produce "different gentle ranges with several ambient temperature.Half inch

Vw, even so, "recognizes the potential for the LED modern technology. We utilize it in this manner that this provides our units their very own clear appearance not to mention identity. Many led lights are usually combined for making defined figures that can characterize a selected design. To illustrate, over the A4 together with A5, the style is established, classy and even strong. On your Q5 and Q7, a devices appear general and robust. Inside the R8, a lighting fixtures make a charging you bull' individuality full of vitality together with ego. All purchases now are famous immediately. Furthermore, it unwraps alternatives for the purpose of exterior and interior structure wherever it could actually be utilized in sections that need a great deal more freedom as a consequence allowing even more freedom with regard to design and style ideas. This provides you with individuals a position in excess of all of our challengers," narrates Ramirez.

Possibly Frd is certainly, nicely, viewing the sunlight. The new Next year Sportage SUV that will be revealed with the Filipino promote shortly functions sunny days going MR16 LED Guided headlamps. "They can be a second safeness function with the car or truck,In . shows Boying Soriano, Frd Australia promoting solutions supervisor.

Soriano goes on this Kia expects to own alot more brands applying Contributed solutions. "They present an additional way of measuring safety whilst driving a car your car in any traveling situations. Just like seatbelts, have got non-obligatory Nine years ago, I see Headed daylight running headlamps to become vital wellbeing include for everyone trucks sooner."

Like with additional technology, car outdoor guided display Led lighting today you should not arrive low-cost, however, there is justified reason to consentrate they'll always be within the headlamp assemblies (and many otherwise) more vehicles to come across far more truck brandnames inside rather, very close potential.

Today, you taste the charm of translucent origami light again. Folds the lampshades pattern, designed by the designer of Ofir Zucker, Albi Serfaty, joint origami artist Ilan Garibi this series unique pattern of lighting products can be designed into a floor lamp, designed lamps, wall lamps.

Easy to bring the lampshade design of diversity, the light transmission after rice paper-like lampshade out of the new translucent material become particularly soft. General paper lanterns are relatively simple, so delicate and beautiful lantern lights, so that you and I are a feast for the eyes.





















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