There are approximately 10 billion incandescent lighting, they consume about one-fifth of the world’s energy. With the current “go green” ecological trends, in order to save energy, many people are looking for ways to save our planet. Consumers from incandescent to energy-saving lamps is converted in the late 1990s, to the cities and towns where people offer discounts mechanisms induced conversion. Attract consumers who are “going green” to achieve cost savings on the bill.
LED lights for lighting trends
However, for many people, this is not always a positive experience, for example, they want the light dimmed, and energy-saving lamps can not pass damper to adjust light and dark, energy-saving lamps contain small amounts of mercury, require proper handling of hazardous substances. Many bulbs will be recycled and properly handled, but most were buried to the garbage dump, which will result in groundwater contamination. Energy saving lamp low adoption rate in the U.S. is estimated that only about 11% of households use. In the past five years, energy-saving lamp technology has greatly improved, but still not the best solution. Kaiou ho Lighting LED energy saving lamp technology for commercial and residential markets LED lighting devices is increasing rapidly. Promises long life, light better, and more energy efficient, these are the LED energy-saving lamps to replace incandescent and a major factor. LED consumes its predecessors only one-third of the energy incandescent. It can make full use of smart sensors and microcontrollers, to really bring additional energy savings and economic benefits are truly “green” technology. Some experts expect that in the future less than a year’s time, most consumers are willing to use LED lighting.
In the next few years, LED ceiling lamp, LED downlight LED lighting in the lighting industry will usher in a crucial moment in the history of the EU countries, Canada, Brazil and the United States, many states will gradually take measures to make incandescent bulbs from the market on exit. U.S. local utilities have begun to introduce LED lamps incentive plan, which will accelerate the LED bulb lighting with speed. These stimulus measures will make consumers buy the high cost of new light, which is about five times the cost of energy-saving lamps.
LED bulb is designed to replace incandescent spherical energy-saving products, such products currently on the market, mostly in less than 10 watts (1 watt to 10 watts specifications), to replace the bulb wattage at 60 watts and below .
LED lights sold commercially integrated optical efficiency of 60 — 100 lm / W, CRI 60 — between 90, 2700 — 6500k color temperature between life 20,000 — 50,000 hours, each manufacturers of LED light indicators are not the same, for the species, many brands of LED lighting products, how do we choose the LED lamps do they need? General customers may not understand some of LED lamps expertise in order to make the average person to understand the performance of LED lamps, the following will make some brief.
1, LED lights integrated light efficiency means a finished luminous efficiency of LED lights, which at the rated voltage, the LED lights emit a total luminous flux divided by the total power consumption of the LED lights, the resulting value that is this LED integrated luminous efficiency, with lumens / watt that higher values ??indicate that the light energy better. The more power, you should select lumens / watt high LED lamps.
2, the color index is set to 100, generally considered :80-100, the color is good, 50-60 —- 79 CRI general, <50, the color is poor. Should be selected high CRI LED lamps.
3, Color temperature is measured in Kelvin (K), the red light source color temperature of about 800 — 900K, yellow-white color temperature of about 3000K or so, about a white light source color temperature of about 5500K, the color temperature of the light source in a light blue 8000 — 12000K . Color temperature selection according to individual preferences, some people like to warm, then the color temperature of about 3000K lights on for him, like daylight people 5000K — 6500K color temperature of light can meet his requirements. Like the cool colors of the election 8000 — 12000K LED lights.
4, LED lamp life is the luminous flux of emitted light was 100%, after a period of use, the light emitting efficiency is decreased, the current dropped to 70% of the initial luminous flux, the number of hours of the lamp life, Select the number of hours lamp life course, the longer the better.
5, LED temperature rise, the General License 25 ℃ — 30 ℃, specific to the LED light heat sink temperature: ambient temperature plus temperature rise is permitted on the heat sink temperature. When the ambient temperature is 37 ℃, LED lamp heat sink temperature of 37 +30 = 67 ℃, if you exceed this temperature, the temperature rise permitted this lamp is substandard. LED lamp operating temperature is the enemy, of course, the smaller the better heating, indicating a high luminous efficiency of LED lights, LED lights in the selection of the same lamp power can be lit simultaneously for comparison. The other is the LED light heat sink temperature warming faster Description LED light thermal conductivity, high efficiency, low thermal resistance.
6, such as their conditional, it can also be used to measure the illumination LED illumination table, choose a level, all the LED lights are tested at this height, LED lights just lit measure illuminance, 30 minutes or 60 minutes after the then measuring illumination, constant or variable illumination light is preferably small, variation in the description of the lamp heat is not good, a large resistance, the chip temperature rises, the luminous efficiency drop caused illuminance becomes small, this light can not be used.
7, with the LED fluorescent tube lamp replacement time to note that the current domestic production of LED lamps are without heat sink, this LED lamp cooling condition is not good, ordinary 30-watt fluorescent lamp LED lamp length power is only 17 dig around the light emitting element is assembled with a small straw hat LED strip PCB printed circuit board via electronic potting glue in a transparent plastic tube. I believe that this LED lamp life may be less than the required number of hours of life, the best selection of LED lamps with radiator, using them more reliable, abroad with aluminum heat sink LED tube products. Believe will develop such domestic radiator with LED Tubes, to meet the various needs of users.
8, in addition to the above indicators, choose LED lights should be selected on the eyes no glare, soft lighting some, that the eye will not feel uncomfortable to see the light, it is best to have its milky lampshade LED lights emit light softer. LED lights in use switching power supply will not have any impact on light, light switch does not affect the number of life, which is the biggest difference with the fluorescent lamps, LED lights are also an advantage.
The effects of different wavelengths of light for photosynthesis in plants are different, the photosynthesis of plants need light, the wavelength is about 400-700nm. 400-500nm (light blue) and 610-720nm (red) are the biggest contribution for photosynthesis.
Blue (470nm) and red (630nm) led, just can provide the desired plant light, therefore, LED street lamps, an ideal choice is to use these two kinds of color combinations. In the visual effect, plant light red and blue combine the pink color.
Blue light can promote the growth of leaves; red light helps to blossom the fruit and prolong the florescence!
LED grow light the proportion of red and blue LED is general 4:1–9:1, usually optional 4-7:1.
Plant lamp for plant growth, leaf height distance is 0.5 meters; every continuous irradiation of 12-16 hours can completely replace the sun.
Semiconductor lighting configurations are most suitable for light source for plant growth.
According to the proportion of settings, Light color can make strawberry, tomato taste sweeter, and more rich nutrition. Irradiation with light Ilex seedlings is the imitation of plants in the outdoor photosynthesis. Through the green plant chloroplast photosynthesis, use the solar energy, carbon dioxide and water into the storage of organic energy, and release oxygen process. The light from the sun is composed of different colors of light; different colors of light growth can produce different effects on plant.
LED light source is also called semiconductor light source, the light source wavelength is narrow, so it can control the color of the light. Separate irradiation on plant use, and improved plant varieties.
Through the experiment to the purple light Ilex seedling, but the blade is very small, the root is also shallow, a pair of malnutrition. Partial yellow light not only small seedlings, leaves seemed lifeless. But Holly growth in red, the blue light is the best, not only strong, but also very well-developed root. The LED street light red lighting and blue light bulb is configured according to the ratio of 9:1.
Results show that, the 9:1 red and blue is most favorable for plant growth, after the light irradiation, strawberry and tomato fruit, sugar and vitamin C content increased significantly, hollow phenomenon will not occur. Continued irradiation for 12 – 16 hours a day, and grow in the light environment, the strawberry, tomato are more delicious than ordinary greenhouse fruit.
LED high power flood light high power LED as the light source is an energy-saving lamps for light. LED Flood light can produce a variety of colors, the resulting color chasing effect applied to the building and decoration, lamp body is made ??of aluminum alloy, fully sealed and reliable, waterproof grade IP65, to cast light angle can be adjusted to achieve the most satisfactory lighting effects.
LED flood light
LED Flood light can be remote or DMX control, push button switches, can be achieved through the use of color chase DMX channel effect, and also by lighting designer scene control, if you do not want to use the DMX controller, the controller can be programmed using the internal , so that the installation more convenient.
Frist, LED flood light with imported chips, high brightness, low power consumption, low heat, long life to 100000H, can be divided into monochrome, color two kinds.
As production workshop to work long hours, while traditional energy-saving lamps, although energy saving, but power consumption is very large, so the LED High Bay Light is bound to replace the traditional energy-saving lamps,Become the preferred workshop industrial lighting. In the ordinary course of the production process, the production workshop and other places have certain requirements for illumination, but improper lighting solutions, been able to Meet the lighting brightness, but a waste of energy, will increase the production cost of the workshop, which also affects the effectiveness of the company’s profits. Traditional 6.7-meter workshop, tend to use 150 watts of energy-saving lamps, and the brightness is not enough. LED high bay light with high power LED light source is equipped with imported high-efficiency power supply, and sodium compared to 70% energy saving; led mining lamp looks very strong, usually dressed in aluminum alloy shell, dressed in a housing made of high efficiency lens , leaving the subject of pro-gaze is its eye-catching heart – ultra bright led white as the light source.
LED High Bay Light
Therefore, LED mining lamp is widely used in workshops, factories, warehouses, highway toll stations, gas stations, supermarkets, exhibition halls, stadiums and other places of lighting required.
ENELTEC introduce LED high bay light construction should note the following:
A reasonable distribution of the lamp position to achieve a reasonable distribution of the light source, which are not high brightness, can make people feel larger space, on the contrary it is easy to feel depressed piranha.
2, in order to enrich the atmosphere of the illumination area, should reduce the lighting level called waste of energy, where the construction area should be carried out on the LED mining lamp power distribution and rational choice.
3, the construction is completed investigations on the premises, there is no lighting dead, to ensure the normal operation of the construction.
4, with the battery pack installed LED high bay light to do gently, rigorous fall short circuit and chaos phenomena
5, do not touch the battery positive and negative at the same time, to prevent the risk of electric shock.
Currently, the consumer end is still more to talk about LED lighting to replace incandescent lamps, but in recent years governments enacted incandescent exit policy and did not give the LED lighting brings significant market positive, but did not bring the expected market demand for a large outbreak . The reason is mainly limited by the LED lighting itself, there are still some technical and cost bottlenecks, such as incandescent light angle is large, the cost of LED under the same conditions still high, the user is still difficult to accept.
Meanwhile, despite the LED lighting technology in the past few years has made great breakthrough, but many manufacturers of LED lighting and LED lighting is not concerned about the impact on human comfort. For example, people working long hours in LED lights, the eyes will feel very tired. “Over the years, we have been concerned about the LED life, ignoring the LED on the human body injury.” Po recognized as, it is only in natural light or electromagnetic radiation of artificial lighting conditions under which it will feel comfortable. Germany Lipu have launched a variety of “flicker” LED power supply for LED lighting to provide high quality power output.
Currently, LED lighting companys are using plus yellow phosphor blue chip packaging technology, or through remote phosphor technology and adding fluorescent hood and other ways to get white light. Although the LED has been able to achieve energy savings, but the LED is still difficult to reconcile with the whole lighting effect rivaling traditional lamp.
We all know that LED light efficiency and CRI is inversely proportional to how to find the most suitable body’s balance point is the focus of follow-up research and development of LED lighting. Domestic, regardless of the industry or relevant regulatory authorities are still not introduced strict LED lighting attenuation scrapped standards, such as in accordance with international practice as scrap attenuated by more than 50%, but even LED decay to 10% it can still be lit.
We judged the quality of the LED lighting more to stay in the lighting product life. Germany Lipu light LED drive technology has been concerned about the change through different specifications of LED power drivers, LED lights are the ultimate light efficiency obviously different. Optics, power and thermal structure of the LED luminous efficiency of the whole lamp has a great impact. But most of the domestic market for LED lamps cost 30% -50% of the application can just stay in the lighted stage.
“We have been concerned about the development of the LED light source, for a variety of light sources, LED power supply design the best solution.” Through the power of the LED lamp beads inspire the greatest degree of brightness, and then through the unique dynamic control technology, can achieve the maximum LED brightness technology and the power electrical performance in full compliance with the International Electrotechnical Commission related technical indicators.
LED power supply LED High Bay Light is one of the core components, LED power supply technically belong to the traditional electronics industry, China’s electronics industry already has a strong manufacturing capabilities. But the rise of the industry did not take long, the price war has begun, especially small power fields. Small power LED power prices have been very transparent, high power LED power is still in profit highlands, one reason is the relatively high technical threshold, large capital investment. Another reason is that high-power LED power supply is mainly used in street lights, tunnel lights, the current government of these lamps is mainly used for demonstration projects. LED lamp manufacturers in order to demonstrate a good effect, using the best parts, resulting in a power plant manufacturers to put forward higher requirements, but also raise the cost.
So many businesses in pursuit of profit, choose not normal factory produced LED power supply, LED High Bay Light led quality greatly affected.
I know that some of the LED High Bay Light power quality is very unstable, ten of which will be a period of time after twelve flicker phenomenon. LED power threshold is certainly not high, but not easy to do, to do good research, good incoming materials and production is good, sometimes the sample is no problem, but the large bulk of the problems that may arise later. According to incomplete statistics, today’s LED High Bay Light failure arising from supply about 80%, over last few years LED lighting products, packaging technology continues to improve and cooling technology continues to evolve, the stability of the light source has reached a good level, direct necrosis situation has very little power is relatively more serious problems to a problem is the direct or dead lights flashing, but there is a relatively high frequency.
LED High Bay Light LED High Bay Light power directly affect the quality of life, and, therefore, LED power supply is essential. ENLETEC mining lamp with professional power, a three-year warranty period, so you buy the rest assured that with the peace of mind.
Many enterprises are more favor of application of LED street lamp, but there are some problems in the structure design, lighting and creative, design, which caused confusion for the owners of the use and selection LED street lamp. This article discusses the five existing LED lamp structure and design problems and proposes corresponding solutions, the following main problems existing in the current market, a single LED lamp:
LED street lamp design difficulties
First, bring the maintenance difficulty overall design. The overall design refers to the light source lamp cavity that cannot be designed as a whole, so it cannot be maintained, or the light source cavity and a power supply chamber is designed as a whole, so it also can not be maintained. The practice in recent years shows that LED street lamp can not do without maintenance. The integral lamp is impossible to maintain, the general road after failure in the elevated, the car couldn’t finish the maintenance task, the whole lamp should change back to the manufacturer for repair. This will force both manufacturers and service providers changing the role from a manufacturer, but it needs to pay a heavy price.
Second, sharp edges and corners of the naked cooling block, so it does not meet safety standards for lamps. Sharp edges and corners is a lamp body of some metal parts that appear many sharp corners. The sharp corners of the existence of at least three cons. First, it is difficult to protect processing and handling process, because it is easy to curl. Second, surface treatment, either electro-plating or spray, the work piece itself must be charged, and prone to “in the corner Judian” phenomenon, or cause the damage, or cause the coating (plating) too thick. Third, it easily hurt workers, some manufactures’ corners of lamps are too sharp, so it is often cut assembly workers’ hand, more dangerous is that if workers were scratches on the elevated car, and it may be due to instinct loosen hands, the consequences will be unbearable to contemplate.
Third, material surface treatment (including power supply), erosion can stand long time in harsh environments. The so-called “naked” street lamp is generally radiator directly exposed outside the LED street lamp. Some manufacturers think it is more conducive to heat, but the premise is that lamps must be installed in a relatively clean, free from outside influence of environment conditions, and the lamps in practical application are directly installed in the outdoor, otherwise it may suffer from acid rain, sandstorm, Blizzard, exposure and other harsh environment.
Secondly, the aluminum alloy is smaller, the capability of heat dissipation is superior, so the radiator of LED street lamp are mostly made of aluminum alloy, but the chemical properties of aluminum alloy is very active, easy and acid-base reaction, exposed in the air is also very easy to oxidation. Although after anodic oxidation treatment on the corrosion resistance, which has greatly improved, yet there still can not guarantee the lighting installation oxide film from being destroyed, when the oxide film is damaged, aluminum alloy will be actively show chemical properties. Acid rain is prone to pollution in some relatively large areas, acid water will accumulate in the lights of the certain gap and groove, after raining, the sky looks blue. After the acid water gap or the groove on the volatile corrosion of lamp body, lamp body will affect the appearance, cooling, and more effect on Mechanical properties. In addition, the “naked” type lamps, due to structural characteristics of the radiator, it is easy to accumulate dust and snow itself. The dust cover on the radiator will make cooling performance down, and it greatly reduced aluminum alloy. The snow on the surface look more conducive to heat, but in fact the lamps in the cold weather of the heat is enough, a lot of snow will cause the enormous pressure.
LED street lamp
Fourth, rectangular shape design does not meet the requirements of wind resistance. Rectangular shape what is said here refers to the nearly square shape, surface area in each. This plane is much better, when the wind from a plane perpendicular to its plane, that will not blow, the wind differentiation, thereby causing pressure to the lamp and lamp fixing structure. The pressure is not obvious in general, but when the lamp suffers aging and corrosion of long time later, if hitting in the coastal areas of the typhoon, there may be poles tilt or bending or lamp falling risk.
Fifth, the heat island effects caused the high failure rate of LED street lamp. Heat island effect is mainly refers to the city air temperature, which is said that the suburb is high, like a warm island located in rural cooler “marine”, this phenomenon is known as the urban heat island effect. In fact, this phenomenon exists in the LED street lamp radiator, especially when only by natural convection. Cooling process of LED lamp is mostly depends on the radiator and air convection heat transfer, in the exclusion of external wind influence mainly by natural convection. Natural convection is cold air by contact and radiators are raising natural radiator heating, cold air continue to add in, through such constant cycle to heat away. If the radiator is too large, the middle part of the hot air rising after the cold air can not have enough supplement (or near a light source in the heating, the air is relatively hot), this will lead to a decline in the middle part of the heat radiating efficiency, temperature rise, thus form the urban heat Island effect. The urban heat islands of LED aging are higher fault rate than the surrounding LED.
For road lighting lamps, known as street lighting. LED as light source lighting the road, then known as LED lights. LED street light is composed of many high-power white LED connected together via a hybrid approach. In addition to LED module LED street lamps, but also contains the power supply, optical components and cooling devices.
The foundation is intended to illuminate the road for drivers and pedestrians that supply excellent visual conditions, the guidelines they trek to advance transportation power, down nighttime traffic accidents and violations, along with the surrounding environment to help pedestrians to see, the distinction between orientation. Followed by the commencement of the socio-economic level and the continuous advancement of people’s livelihoods, everyone in the night to outdoor recreation, shopping, visits and other activities more and more, also played a distinguished road lighting lucrative livelihoods, economic prosperity, and promoted the role of the city’s image.
In accordance with the concept of lighting, the road can be divided into four categories: automotive-specific road, usually Avenue, Commercial Street and sidewalk. Often speak of the road lighting, represents the vehicle for road lighting. Many of intent on the road lighting, in order to secure a comfortable supply of motor vehicle drivers is the first one of the visual conditions.
LED street lights
Road street lighting was first, then successively presents high-pressure mercury lamp, high pressure sodium (HPS) lamps and metal halide lamps, energy efficient lamps, lamp and LED lights. In the current match seasoned road lights source, HPS lamp light-efficient, often reaching 100 ~ 120lm / W, in the current Chinese road lighting throughout the mall (has about 15 million), the high-pressure sodium occupies more than 60% ratio. In some communities and villages on the road lighting foremost is the electronic energy-saving lamps (CFL), accounting for about 20% of the mall road lighting ratio.
In road lighting, high pressure sodium because of its light efficiency can reach 120lm / W for the dominant position. However, along with the continuous progress of LED luminous efficiency, high pressure sodium lamps exclusive location at stake. Currently in use on the secondary roads 150W LED street below, has demonstrated significant energy advantage.
Direct impact on life expectancy street lighting maintenance costs throughout the journey. Current high pressure sodium lamp life expectancy is usually around 20,000 hours, high pressure sodium lighting road use life expectancy of only about 5000 hours, while the power LED’s life expectancy is usually up to 5 ~ 70,000 hours.
In fact, LCD always on, just put on a new layer vest, it becomes a LED. But with LCD and LED is the difference between, LED has a great advantage over LCD.
LCD = Liquid Crystal Display, LCD displays, LCD is structured on two parallel glass sideways placing the liquid crystal, two pieces of glass center has many straight and level of fine wires, or to manipulate the rod through the energized crystal molecular changes direction of the light reflecting occurred screen.
LED = Light Emitting Diode, light-emitting diode, is a way to convert electrical energy into visible light, solid-state semiconductor devices, which can be converted directly into electricity to light.
These two English names, explanations, and can be seen: LCD, refers to the liquid crystal display; LED, refers to the selection of LED backlit LCD display. Therefore, a direct comparison between the two is not appropriate, however, Xiao Bian also wrote the title why do compare it? This was extended talk about, LCD primary divided into two categories, one category is selected traditional CCFL backlit LCD display, and the other is an optional LED-backlit LCD monitor. Shopping on the masses, many consumers directly to the first class monitors called LCD, second display called LED.
Two kinds of backlight type, CCFL and LED, are cold-cathode fluorescent tubes and light-emitting diodes, during which of course is LED (light emitting diodes) function is very good, energy saving, environmental protection, small size, high brightness, stylish. CCFL (cold cathode fluorescent tube) will not elaborate, that is to say the people called LCD, LCD TV now use the backlight are now available throughout the LED (light emitting diode).
LED TV, strict sense should be called “LED-backlit LCD TV”, the imaging principle and there is no essential difference between CCFL method, except that the backlight varieties make changes, replaced by a cold cathode fluorescent tube light-emitting diodes, and can not technical innovation is the foundation said.
Therefore, simple speaking, LED, and the difference lies only in the LCD backlight, a liquid crystal panel itself does not require any modification. That both panels are the same, the operating principle of the biggest differences is that some of the backlight.
Conventional LCD TVs (optional CCFL backlight TV) screen brightness deficiency, face painting will be dark, today’s technology, LED TV is definitely an advantage: the screen effect is very good, significantly improved brightness, the screen reflects the enhanced shading, highlighting layering, contrast, bright colors can be useful degree of advancement; addition, the screen will not dim yellow, and energy saving and environmental protection, the screen can be made even more slim.
LED life expectancy is very long, the use of the usual life expectancy is also up to 100,000 hours, if the boot 5 hours per day accounting, a selection of LED backlighting LCD TV can use for nearly 55 years.
