作者：Blade

What are the advantages of LED downlight

LED down light has many advantages, adapted to many occasions to use, especially for office, commercial indoor lighting, taking into account the need to place the beautiful and bright environment, tend to use the lamp for lighting. LED downlight exactly what benefits become essential to use commercial decoration lamps yet. Here’s what.

led downlight
1, energy: the energy consumption of incandescent white LED 1/10, energy saving lamp 1/4.
2, long life: LED theoretical life of over 100,000 hours, for ordinary home lighting is “once.”
3, can work at high speed: energy-saving lamps if you frequently start or shut off the filament will be black soon damaged, but not downlights.
4, cold light source: LED light source lamp is cold light source type. Solid package, so it is easy to transport and install, can be installed in any micro-and closed equipment, not afraid of vibration, the main consideration is the heat lamp problem.
5, environmental protection: no mercury (Hg) and other substances harmful to the environment and will not harm the environment. LED downlight assembly parts can be very easy disassembly, easy to recycle. And the LED does not contain infrared, ultraviolet, insects do not move. To the health and hygiene of the business environment to provide a guarantee.
6, the color is good: more than traditional lamps emit light closer to white, in this light irradiation, the people it can be more accurately identify the true color of the object.
7, the corresponding speed: LED fast response, a press that is open, eliminating the traditional high pressure sodium lamp starter disadvantage of a long process.
LED down light is embedded into the ceiling light beam LED lighting. Belongs Directional LED Downlight LED lighting, only its opposite to the light, are converging beam angle, the light more focused, strong chiaroscuro. Suitable for large commercial decoration lights.

LED lighting market is growing rapidly in India

India is the world’s sixth largest consumer of energy, accounting to 3.4% of global energy consumption. In fact, by 2006 India’s per capita consumption is already very high. In 2006 the average annual growth in electricity production to 68 billion degrees, 75% of India’s consumption of electricity derived from thermoelectric power plants, 21% comes from hydroelectric power plants, 4% comes from nuclear power. Although we have introduced a lot of favorable rural electrification projects, but there are still 400 million people in India, they will be lost in a large area blackout electricity supply, 80 percent of these people have a power line.

led lighting
With India’s rapid progress of urbanization and industrialization in India for a large surge in electricity demand, while consumer consumption is also a lot of growth. Lighting power load in India accounted for 12% discount if you put it into carbon dioxide released, for thermal power, for a total energy consumption will result in 52.5 billion tons of carbon dioxide emissions is only used for lighting. Therefore, with the energy saving features of the LED demand growth, according to data, if 25% of the Indian lighting system power load into LED lighting load, carbon dioxide emissions will be able to directly reduce emissions by 25%, equivalent to a year in India, its value of about 1.3 billion euros, which is a huge market.
It is reported that India’s LED lighting market’s overall growth rate will be 41.5% until 2015. 2009 is only $ 49 million, which represents 3.1% of the lighting market, which means that market space and potential.
India’s demand for LED products mainly rely on imports, in 2004 India’s imports amounted to 6,470 LED million U.S. dollars, in 2005 imports had increased to 7,123 million U.S. dollars, in 2006 LED imports reached U.S. $ 88.5 million, annual growth rate of more than 11.93% to 2010 India is expected to more than 1 billion U.S. dollars, breaking the 12% annual growth, the global LED market in considerable development potential in emerging markets.

How to buy led bulbs for homes

Currently, led bulb has entered the home lighting, as it saves energy saving 80% than ordinary incandescent and 50% than ordinary energy-saving lamps, with low-carbon environmental protection (LED’s environmental benefits of better, no ultraviolet spectrum and infrared and recyclable waste, safe touch, no pollution, no mercury elements, belonging to a new era of energy-saving green lighting).

led light for home
led light for home

1. LED bulb price consists of:
LED bulb from the lamp housing, power supply (LED driver), plate or aluminum plate lamp beads, and lamp beads components. There is little change in the price of the first three to 3W bulb, for example, according to different materials, from 5 yuan to 20 yuan per month. LED bulb lamp beads price is the price of the main body, and choose what kind of illumination lamp beads, light decay, long life and energy level are the second. The same is 3W, 500LM brightness of the lamp can be done more, it can be 200LM even less. Light failure can be as small as 0.02% to 0.3% or even greater than 0.3%. Life can be more than 50,000 hours (14 hours a day for 10 years), it can be even less than 5000 hours (mainly light fades badly, brightness is reduced), lamp beads price difference is also a great example to 5050 , low price of 0.3 yuan per stick, high prices (U.S., Japan imported chips) 3 yuan per stick. A 3W bulb price from 10 yuan to 80 yuan, it is the truth.
Optional LED lamps should consider the following factors:
1 Appearance: LED bulb shapes a lot, you can choose at your favorite.
2 Application of space: how much interior space it was, I like a little dark, so you can choose a smaller power LED bulbs. I like a little brighter, and you can choose a bigger power LED bulbs
Generally speaking 40-watt incandescent, 220 volts, the luminous flux is 340 lumens, but 3W LED bulb can do 340 lumens or more. But now the market is generally only 3W LED bulb 240LM, some are not yet reached 240LM. Look at the original lamp power, you can find yourself a suitable LED lights.
3 Warranty: regular manufacturers generally based on standard household electrical appliances-one year warranty.

How much is LED panel lights

From green lighting design considerations, LED panel light materials, environmental protection, low power consumption, high luminous efficiency, lighting, brightness, etc. are superior to Grille, truly lanterns during the day, night lighting. Which is gradually replacing T8 fluorescent light grille. LED panel 10 times longer lifespan than fluorescent lamp. So how much do LED panel lights cost? ENELTEC would introduce you to the price structure of LED panel lights.

LED panel light
　1 bottom borders
LED panel lights and bottom borders use different materials according to their thermal performance, so the prices are different.
　2 LGP and diffuser
The quality of the light guide plate is one of the most important factors of the quality of LED panel lights. The light guide plate can make the LED panel light emitting more uniform. Does not appear dark spots, the water ripples and so on.
　3 lamp beads and chip
Good chip means not only stable, good brightness, light is small, and the color rendering index is much better.
　4 aluminum plate
LED panel lights have four sides into the light aluminum plate, there are two sides into the light aluminum plate .
　5 Power
Power also affect the price of LED panel lights the most important factor. Power is not good, a direct impact on the LED panel lamp life. UL power is good, more stable performance.
　6 Packing
Safe enough for the transportation.
7 Accessories
Materials are foam pads, cotton, tape, wire, terminals.

LED spotlight what are the advantages for the future

LED, as a new type of energy-saving, environmentally friendly, and green lighting products, it is the future trend of development. Led spotlights have the main features:

LED spot lights
The first, led spot lights are green. It does not contain lead, mercury and other pollution elements, no environmental pollution;
The second, led spot lights have solid package, and they are cold light type, easy to transport and install. Impact resistance, no ultraviolet (UV) and infrared (IR) radiation, no filament and glass enclosure, there is no fragmentation of traditional lamp to the human body without harm, no radiation;
Third, led spotlights flicker. Pure DC work, eliminating the traditional visual fatigue caused by strobe light;
Fourth, led spot lights longevity. The Life could be 100,000 hours or more, for ordinary home lighting can be described as “once.” Long life of 50,000 hours or more, is 50 times more than traditional incandescent. LED using highly reliable advanced packaging technology – Eutectic Welding, fully guaranteed the LED long life;
Fifth, energy-saving. The energy consumption of incandescent LED 1/10, energy-saving lamp 1/4 ultra bright LED light source, with high efficiency power than traditional incandescent 80% or more, the same power incandescent brightness lamp 10 times.
Meanwhile, there is a uniform light irradiation area for led spotlights, not dazzling glare, so it become on energy-efficient lighting representative in the market by many consumers.
Disabling the incandescent and LED lights and other support policy, Japan, Europe and the United States, the Chinese market will have started. 2012 Japan, the EU banned completely, the United States, China began to ban incandescent 100w power, major markets began to start, we can be started in 2012 as the first year of LED general lighting.

LED spot lighting development advantages

With the development of the market demand, LED traffic signals, and other types of specialty lighting applications market share has steadily increased, especially in recent years, smart phones, tablet PCs on the market, LED gradually enter to the diverse needs of the market shift and change the previous single new demands of the market, technical and scientific content are gradually upgrading and development, LED spotlights prices gradually lower, LED spot lights and other related industries will enter into a new development of the new phase.

LED spot lighting
In fact, the rapid changes in the global lighting market, the biggest reason for incandescent delisting is its high power consumption, less environmental protection, energy saving economy are prevalent in the present context, the only energy-saving lamps will be popular by tomorrow. LED spot prices shut down but also provide support for the development of LED spotlights.
Driven by changes in lighting products in 2007, the U.S. Congress enacted an Energy Independence and Security Act, the bill establishes energy efficiency standards for lighting equipment and determine on 1 January 2012 onwards phased. The bill requires new lighting energy consumption by at least 30%, while it is not reach to the standard incandescent lamp, so you can not use incandescent lamps.
According to statistics, the United States accounts for about 15% of total household energy consumption. According to the energy efficiency advocates say, in accordance with the unit calculating annual household electricity of $ 143, the new Act standards developed annually for the nation’s consumers to save more than 10 billion U.S. dollars, the number of new power plants will be reduced by 30. In view of this, out of incandescent, using new energy-saving lamps are imperative. The LED low prices of spotlights are the best alternative to incandescent lamps.
LED spot lighting is the use of an LED light source for lighting, the LED’s appearance is very thin, so LED spotlight is compact, it also has a great similarity appearance with incandescent lamp, in addition, it is easy to use, and LED spot price is too low, so it becomes the best choice to replace incandescent.
Compared with incandescent lamps, LED spotlights have longer life; energy consumption is also reduced by 80%. In addition, although the appearance and performance of LED lighting with incandescent are similar, yet the life is several times than the incandescent lamp, with adjustable lighting, LED spotlights, low prices, so LED lamps are more popular.
While CFL lights are cheaper than LED spot lights, but it takes longer to start, and takes a few minutes to reach full brightness level, coupled with it contains mercury pollution itself, so the outlook is not being promising.
With LED lighting technology, LED lighting upgrades and further price adjustments, LED lighting is the best alternative to incandescent lamps, and the future is bound to have better prospects.

LED lights choose advice

　　LED lamp power supply is the most important component in the LED daylight lamp, improper selection can not let LED fluorescent lamp play performance, and can’t even normal use. In cooperation with the customer process, when you found some errors, then you should give some suggestions and reference for customer selection.

LED lights
1 why must be constant: the characteristics of LED semiconductor decided their environments that are affected. For example, when the temperature increases, the LED current will be increased, the increase of the voltage, the electric current will increase LED. Long term exceeds the rated current, so the service life will be greatly reduced LED. While LED is in constant temperature and voltage variations and other environmental factors, in order to ensure the constant working current.
2 LED lamp power supply and the lamp board: some customers design the light board, then to find power. Finally, they find it very difficult to have the appropriate power supply, voltage or current is too large, too small (such as I, 350mA, V < 40V); or the current is too small, the voltage is too high (such as I 40mA, V > 180V), the result is made is a serious fever, low efficiency, or the input voltage range is not enough. In fact, choose one of the most excellent series-parallel connection mode and in each of the LED on the voltage and current are the same, but the power’s effect is to play the best performance. The best way is to communicate with power supply manufacturers to be tailored.
3 LED operating current: rated working current LED is 20 mA, some factories began to use as much as 20 mA, design, in fact this current work under the heating is very serious, after repeated experiments, designed 16-18 Ma is the ideal. The total current =17 * N parallel N;
4 LED: recommended working voltage of LED is 3.0-3.5V, after testing, most of the work in 3.125V, so according to the formula of 3.125V. The total voltage =3.125* M M lamp series Series-parallel and wide voltage

how to make led lights at home


　　5 LED lamp board: the range of AC85-265V to make the LED fluorescent lamp is wide in the input voltage range, the lamp panel LED series and parallel modes is very important. Due to the current power supply for step-down power non-isolated, at the request of wide voltage, output voltage shall not exceed 72V; the input voltage range can reach 85-265V. That is to say, the series number should be no more than 23 strings. Parallel number is not too much, otherwise the working current is too large, serious fever, recommended for 6 and /8 and /12 and. The total current does not exceed 240 Ma as well.

　　There is a wide voltage scheme. That is the first to use L6561/7527 voltage up to 400V, and then the buck, the equivalent of two switching power supply, twice times expansive, if the price is not high, there is no market.
6 the current power PFC on the market there are three situations: one is without PFC special circuit, the PFC in general is about 0.65; one with the passive PFC circuit, lamp panel was prepared, PFC in general is about 0.92; it also used one active 7527/6561 circuit, PFC can reach 0.99, but the project cost more than twice as expensive as second kinds of scheme.
For passive PFC circuit: it also called the valley-fill circuit of PFC, half of the AC input voltage peak is the working voltage range. If the input is 220V, the peak value is 220*1.414=310V, half peak voltage is 155V, minus two series capacitor divider 1/2, the maximum output is 77V, so the LED lamp series number 24 on. This is why light board on the market generally made of 23 series or 24 series. If the input is 110V, the output power is PFC: 110*1.414*1/4=38V, number of beads with the 12 string. So, in the area of 110V, with PFC is more troublesome, the number of no more than 12 strings of beads. Therefore, to get the power factor is relatively large, series number cannot too much, otherwise, and it can not reach the low voltage requirements.
7 constant current accuracy: some power supply constant current accuracy in the market is poor, like the popular PT4107/HV9910/BP2808/SMD802 scheme of constant flow scheme, error is ± 8% and ± 10%, error constant is too large. General requirements can be within ± 3%. According to the 3% errors, 6 parallel, error of each road about ± 0.5%, if 12 parallel, error of each road about is ± 0.25%, the accuracy is enough. Precision is high, the cost will increase greatly. But for LED, 16 Ma and 18 Ma has little effect.
8 isolation / non-isolated power supply such as: general isolation is 15W, in the LED tube, the volume of the transformer is very big, and it is difficult to put in. Especially for T6/T8 lamp, it is almost impossible, so in general it can only be isolated to 10W, rarely more than 10W, and the price is very expensive. So, isolation of the price is not high, the general is not isolated mainstream more, the volume can be made smaller, the minimum can be 8 mm high, in fact, safety measures and non-isolated ready, there is no problem.
9 power efficiency and power factor: power factor is the ratio of the active power and total power (PHI), wattless power the rest of the mutual transformation in power system, the electric meter can not measure the wattless power meter, the user will not have any impact, only the power supply bureau does not receive the user who has no power of money. While the efficiency (y) is the ratio of the output power and input power, output power (voltage output LED output current) / input power, this parameter is very important, which relates to the product and the interests of users, if the low efficiency means that a large part of the input power is converted to heat emitted; if it is installed in the lamp, it will be produced in a high temperature, a light efficiency of our LED plus than the heat, and it will obtain higher temperature. We all electronic parts of the life will be shortened with increasing temperature. High efficiency, conversion into light efficiency will be high, and the heating power and the tube reduction, equivalent to saving, product performance and life will improve. So that the efficiency is the most fundamental power life factor, efficiency is too low, or consumption in power on the heat is too large. It is generally above 0.8-0.9.
The power factor, the two indicators of efficiency sometimes restrict each other, and is related to the output current products, in order to improve the efficiency, output as high voltage, low current. Internal control standard of our company is generally 0.80-0.90 of power factor, efficiency is 0.82-0.90. Our existing customers in the power factor and efficiency trade-offs, they tend to improve the efficiency, and power factor is above 0.80.
10 dimensions: height is the main factor limiting, generally used for T6 /T8 size ≤ 9 mm, the height can not be too high. T10 tube high = 15 mm.
11 CE authentications: the LED fluorescent lamps exports more abroad, so they are generally required to achieve CE certification. CE includes two parts, one is the low voltage directive, it is the main insulation and pressure resistant performance, it generally can reach; another part is the electromagnetic compatibility directives, mainly refers to the EMC, electromagnetic interference and anti-interference, this part is difficult to achieve. Whether it is passed CE certification or not, just look at the power input part, the input filter capacitor and a ring of common mode inductors, may through the CE products, if there is no common mode inductors through CE, it certainly is a lie.

LED light evolutionary history

In 1907, Henry Joseph Round for the first time on a piece of silicon carbide was observed electroluminescence phenomenon. Because the light is too dim a yellow color, and not suitable for practical application; more difficulty lies in silicon carbide and electroluminescence can not adapt to the good, so the research has been abandoned.
In twenty times Bernhard Gudden and Robert Wichard in Germany used advanced from zinc sulfide and copper refining yellow phosphorus emission. Once again as the light emitting dim and stop.

led light
In 1936, George Destiau published a zinc sulfide powder emission light report. With the current application and widely recognized, culminating in the “El” this term. In twentieth Century 50, British scientist’s photoluminescence experiments using semiconductor GaAs invented the first modern led in electric, and published in the 60’s. It is said that in early trials, LED needs to be placed in liquid nitrogen, and need operation and further to efficiently work at room temperature. The first commercial LED can not only emit invisible infrared light, but quickly applied to induction and photoelectric fields. At the end of the 60’s, the use of phosphate invented the first visible red light LED on GaAs substrate. Gap changes make LED more efficient, the red light is brighter, and even produce orange light.
To 70 time metaphase, gap is used as the light source, then a pale green. LED adopts a double-layer gap chip (one red and the other one is green), which can emit yellow light. At this time, Russian scientists use emery manufacturing out of the yellow light LED. Although it is not efficient as European’ LED. But in the late 70’s, it can emit green light.
The early 80’s mid of GaAs aluminium phosphide make the birth of the first generation of high brightness LED, first red, then yellow, and then green. By the early nineteen nineties, using indium aluminum phosphate produces red, orange, yellow and green LED. The first historic Blu-ray LED also appeared in the early 90’s, the obstacles of semiconductor light source abrasives come early again. According to the technical standard current to measure, yellow LED with Russia source.
90 time metaphase, the GaN LED super bright, then create a green and blue nitrogen gallium indium Led can produce high strength. Super bright blue chip is the core of white LED, with fluorescent phosphorus in the light-emitting chip, and then the fluorescent phosphorus by absorption from the chip on the blue light into white light. Is it to use this technology to produce any visible color light? Today in the LED market let us see produced new colors, such as light green and pink. Scientific thinking readers now may be aware of the LED development experienced a long and tortuous historical process. In fact, the recent development of LED not only can emit ultraviolet light, but also can emit pure and true “black” uv. Then how far the LED development history does could last, there can make nothing of it. Perhaps one day will be able to develop to X ray LED. LED can only be applied early in the indicating lamp, calculator display early and digital watch. And now began to appear in the super bright field. It will be in the next period of time to continue.

how to buy led panel lights

LED panel light is a upscale indoor lighting, its external borders made from aluminum by anodic oxidation, the light source is LED, the entire lighting design beautiful and simple, luxurious atmosphere, both good lighting effects, but also gives brings a feeling of beauty. LED panel lights unique design, high transmittance of light through the light guide plate to form a homogeneous plane glow, illumination uniformity, light, soft, comfortable yet bright, can relieve eye fatigue. LED panel lights can also radiation, does not irritate the pregnant women, the elderly, children’s skin.

led panel light
Compared with other lighting products, LED panel lights are very prominent advantages: ultra-thin, ultra-bright, ultra energy-efficient, long life, ultra-easy peace of mind! Green. However, LED panel light quality varied widely, consumers do not know how to choose? Given the current market price of flat-panel lights fight the vicious competition, a large number of substandard products to market (professionals call it (sub-standard and poor goods, bad lot) , has violated the LED energy-saving, long life, environmental protection and other real value, contrary to the LED technology to the field of integrated ceiling meaningful and integrated ceiling seriously affected the healthy development of LED panel lights, Manufacturers for LED panel lights have the responsibility to introduce and explain how to choose LED Panel lights or LED panel lights to identify good and bad ways:
First, look at the whole “lighting power factor”: if the power factor is low, indicating that circuit design of lighting will greatly be reduced. Also, if power factor is low, the use of even the best LED lighting life is not president . Power factor level, with the “power factor meter” can be detected. General export LED panel light power factor required to achieve above 0.85. Power factor is less than 0.5, it should be said substandard products or refuse products, not only short-lived, and the actual electricity consumption to be higher than the nominal about twice, that is, compared with the ordinary energy-saving lamps, simply not saving. So, this is why LED panel light needs with high-quality, high-efficiency drive power of reason. There is no “power factor meter” is used to detect power factor LED lighting to consumers, there is a way to use the “meter” to test two a nominal power of the same similar products, the greater the current and current harmonics greater, indicating the actual electricity consumption is large, but also the less saving! Meanwhile, the current instability, and the overall life of the lamp beads adverse lighting life!
Second, look at “Lighting cooling conditions – materials, structures”: LED lighting heat is also very important, the same lighting and power factor with the quality of the lamp beads, if the conditions are not good heat dissipation, light bead work at high temperatures, the light fades will be greatly reduced. Currently, the use of the heat sink material are copper, aluminum, PC, thermal conductivity of copper than aluminum, PC better off than the thermal conductivity of aluminum, are most aluminum radiator materials in general, preferably for the insert piece, aluminum die-casting aluminum (Al profiles, extruded aluminum), followed by the worst is cast aluminum, aluminum inserts cooling effect is best.
Third, look at “light bead quality”: LED chip quality depends on the quality and packaging technologies.
Chip Brand of three camps:
The first camp to Europe, America, Japan, as the representative of manufacturers, including Cree, Osram, Nichia, Toyoda Gosei, etc.;
Second camp in the United States, South Korea, China Taiwan as the representative of manufacturers, including Bridgelux, Seoul, Epistar, etc.;
Fourth, drive power. The power of life relative to other parts of lighting, the life expectancy is much shorter, the power of life affect the overall life of lighting, lamp beads theoretical life of 5-10 million hours, and the power of life of 0.2 -3 million hours, power supply design and material selection will determine the power of life. Aluminum exterior with a good power-driven than plastic, one of its good heat dissipation, and second, transport and use can effectively protect the inside of the parts are not to be crushed and loose, lower power drive failure rate.
Fifth, luminous efficiency. Based on the same power lamp beads, light efficiency is higher, the higher the brightness, the same illumination, power consumption is smaller, more energy efficient.
Sixth, power efficiency, the higher the better power efficiency, higher, indicating that the power consumption of the power supply itself is smaller, the greater the power output.
Seventh, China’s LED lighting safety standards have been introduced, according to state regulations, please choose LED lighting safety standards.
Eighth, a good quality LED panel lights, in addition to several key aspects mentioned above, the workmanship is an external manifestation of the perfect product. In short, a good quality LED panel lights, drive power is high quality, good heat dissipation, high-quality chips, meet the safety standards of several aspects of the perfect combination! Merely emphasized that any party can not be called a qualified products !

LED lamps Lighting for traditional strengths

50 years ago, people came to understand the semiconductor material can produce light of the basic knowledge, the first commercial diode produced in 1960. LED is the light emitting diode in English abbreviation.

led light
Its basic structure is an electroluminescent semiconductor materials, placed on a wire rack, then sealed with epoxy resin around, protect the internal core lines effect, so the LED’s seismic performance.
Compared to incandescent bulbs and neon, LED is characterized by: low operating voltage (some only a few volts point); operating current is very small (some only a few tenths of mA can be light); shock and vibration good performance, high reliability, long life; by modulating the current through the strength can be easily modulated luminescence intensity.
LED use low voltage power supply, power supply voltage between the DC 3-24V, varies depending on the product, there are a few DC36V, DC40V, etc., so it is a more secure than using a high voltage power supply, especially for public places.
CREE LED lamp is used with AOD super bright white LED as light source, the shell is acrylic / aluminum alloy (customer-defined). Housing available PC pipe production, high temperature of 135 degrees. LED lamp with the traditional fluorescent lamp in the dimensions are the same caliber, length 60cm and 120cm, 150cm, the power was 10W, 16W and 20W, and 20W traditional fluorescent lamp (ballast) the actual power consumption of about 53W , 40W traditional fluorescent lamp (ballast) the actual power consumption of about 68W.
LED fluorescent lamp is up to 80% energy saving compared to incandescent lamps over lamp life, and more than 10 times in the lifespan, almost maintenance free, there should always replace the lamp, ballast, starter problems, about a year down The cost savings can exchange costs. Environment-friendly semiconductor light source, light and soft, pure spectrum in favor of workers eyesight and physical health, 6000K cool white light gives a cool visual experience and helps to focus and improve efficiency.
LED prices more and more civilians, because LED power-saving features, perhaps in the near future, people will put incandescent LED lights. In some urban roads, schools, factories and other places have been completed facelift LED lights, energy saving lamps.