LED flood lights, mainly used for architectural lighting purposes, as well as commercial space lighting, decorative element heavier, its appearance is also a well-rounded, as generally have to consider the heat sink, the shape are quite different with the traditional flood lights. LED Floodlight according to their output beam intensity distribution into rotational symmetry symmetrical, two symmetrical planar, a planar symmetrical and asymmetrical shape four kinds.
1 rotationally symmetric shape. LED floodlight reflector using rotational symmetry and rotational symmetry of the source light distribution along the symmetry axis of the reflector axis installation. Such lamps isocandela curve concentric circles. This form of cast light lamp in the single lamp lighting, affected by the oval-shaped illuminantion uneven; but in the multi-lamp lightings, they superimposed on each other, you can produce satisfactory lighting effects. If the stadium on hundreds of commonly used rotationally symmetric shape Spotlights installed in the stadium around the tower to get high illumination, high uniformity of lighting effects.
2 two symmetrical planar shape. Such Flood Light curve has two symmetry planes. Lumination mostly uses symmetrical cylindrical reflector, and will the straight-line like light source along the cylindrical surface axis of the installation.
3 a symmetry plane shape. Lamps curve is only one plane of symmetry. Lamps using the cylindrical reflector asymmetrical or symmetrical cylindrical reflector grid sheet plus limited light. The most typical is the sharp cut-off block retraction shaped light distribution. Such single light intensity distribution can be obtained more satisfactory illumination distribution.
4 asymmetric shape. Such lamp curve has no symmetry plane. Main difference is the use of a larger light intensity distribution of the light mixing different types of light fixtures and the use of premises under specific lighting requirements and design of special lamps.
Although LED lights are still 2 times expensive than high pressure sodium lamps, but the overall power consumption and maintenance costs and other factors, the use of two years after, LED lights and high pressure sodium lamp is almost equal to the total cost. Therefore, in the long term, LED lights will be better than the current cost of using high-pressure sodium lamps. With the falling prices of LED lights, its competitive advantages will be more apparent. But the longer the economic recovery cycle to the development of mass-market LED lights bring some obstacles. However, the choice of good quality LED lights is very important.
LED Street Lights
1, LED street lights own characteristics – unidirectional light, no light diffusion, to ensure the efficiency of light.
2, LED street lights have a unique optical design, the LED street light shines area lighting required to further improve the light efficiency in order to save energy.
3, LED street light source efficiency reached 110-130lm / W, but there is still much room for development, theoretical value of 250lm / W. The high-pressure sodium lamp luminous efficiency is increased with the increase in power have, therefore, the overall efficiency LED light stronger than high pressure sodium lamps; (this overall light efficiency is theoretical, in fact, more than 250W HPS light efficiency than LED) .
4, LED street light color than high pressure sodium much higher, high pressure sodium lamp color rendering index of only 23, while the LED lights color rendering index of 75 or more, from the visual psychological point of view, to achieve the same brightness, LED lights for illumination average of than high pressure sodium reduced by 20% or more, (see British road lighting standards).
5, light is small, light decline a year less than 3% for 10 years still to road illumination requirements, and high-pressure sodium lights big decline, about a year has fallen more than 30%, therefore, LED lights in the use of power design can be lower than the high-pressure sodium lamps.
6, LED lights with automatic control of energy-saving devices, to achieve different times to meet the lighting requirements in the case of the maximum possible reduction in power and save energy. Spark intelligent LED lights dimming can be achieved by computer, sub-time control, lighting control, temperature control, remote control, automatic inspection and other user-friendly features.
7, LED is a low-voltage devices, drive single LED voltage is safe voltage, the series are single LED power 1 watt, so it is a more secure than using a high voltage power supply, especially for public spaces (such as: street lighting, factories lighting, automotive lighting, commercial lighting, etc.).
8, Each unit LED die only a small volume, it can be prepared into various shapes of devices, and for the environment variable.
9, Long life: more than 50,000 hours can be used to provide three years of quality assurance. Inadequacy is the power of life can not be guaranteed.
10, High luminous efficiency: ≥ 100LM above using chips, as opposed to traditional high pressure sodium lamp energy saving more than 75%.
11, Easy to install: no need rectifiers cable directly to the street light poles connected to or installed in the original light source nested shells.
12, Excellent thermal control: Summer temperature at 45 degrees, and the use of passive cooling in the summer heat inadequate protection.
13, Reliable: the power circuit all high-quality components, each LED has a separate over current protection, without fear of damage.
14, Light color uniform: without lens, not to increase the brightness at the expense of uniform light color, thus ensuring no aperture light color uniform.
15, LED does not contain toxic metals mercury, unlike high pressure sodium or metal halide lamps at end of life damage to the environment.
LED lamps Low maintenance costs: Compared with traditional lamps, LED street light maintenance costs low, by comparison, less than six years to recover the full cost of inputs. led light bulbs。
LED lights with conventional high-pressure sodium lamps is different, high power LED street light with low voltage DC power supply, the power-type GaN-based blue LED with yellow phosphor synthesized efficient white light diodes, high efficiency, safety, energy saving, environmental protection, long life fast response, high CRI unique advantages, can be widely used in urban road lighting. Housing available PC pipe production, high temperature of 135 degrees, low temperature of -45 degrees. So how to buy LED lights?
1. Luminous efficiency
LED lighting technology matures, the power LED light source is required to meet the general street light flux. General high pressure sodium lamp luminous flux is 100LM / W, the commonly used high-power LED is 50-60LM / W, with the best LED chip abroad can reach 80LM / W, luminous efficiency is higher, which means better energy efficiency, which is Select the LED lights of the most important indicators. However, LED’s standards this has not been clearly defined, so when purchasing LED lights must be carefully confirmed. 2. LED street light failure
Now some businesses, in order to reduce costs, on the use of hundreds of small 0.5W power LED. However, this low-power LED light failure is very serious, the light fades to 80% of the life of only 1000 hours. So, as long-term use of the street needs is absolutely not allowed to use such small power LED, the choice of powerful LED (30W or more generally refers to), it would be much better light fades. 3. LED lights weight problem
LED lights, due to technical content, complex composition and other reasons, some of the high-power lamp will far exceed the weight of ordinary high-pressure sodium, so the corresponding support material requirements more higher. However, some manufacturers have LED lights LED lamp as much as possible to reduce the weight from the original single lamp about 30 kilograms, down more than 10 kg, weight reduction there is further downward trend. 4. LED lights heat
Because LED is a semiconductor components, and its chips affected by the temperature decreased to 30% of the initial luminous flux, illumination will lose significance, that is the end of life, in theory, high power LED street life of 3-5 million hours, but which is an important prerequisite for good heat dissipation. It is worth mentioning that the country has adopted the world’s leading manufacturers of needle cooling technology.
ENELTEC Ultra Slim LED Panel Light adopts qualified super bright LED as light source, which is stable, long life and no UV & IR emission. The anodized aluminum frame is stylish and fashionable with everlasting color. It is powered by low voltage constant current driver, which is safety, energy saving and long life.
LED Panel light is the ideal replacement for traditional grid lights and fluorescent tubes. Moreover, ENELTECLED Panel light creates extremely harmonious and uniform lights, which conventional light never achieved.
Street lighting is an important part of the city, the conventional high-pressure sodium lamp is often used, high pressure sodium 360 degree light, light loss caused major shortcomings huge waste of energy. Currently, the global environment is deteriorating, countries are developing clean energy. With the rapid growth of the national economy, China’s energy supply and demand have become increasingly prominent, there is a serious power supply began to shortages of energy is urgently needed to solve the problem. Therefore, the development of new high efficiency, long life, high CRI, environmentally friendly energy saving LED street lighting of the city has a very important significance.
LED street lamp suppliers rank
LED street lights with conventional high-pressure sodium lamps is different, high power LED street light with low voltage DC power supply, the power-type GaN-based blue LED with yellow phosphor synthesized efficient white light diodes, high efficiency, safety, energy saving, environmental protection, long life fast response, high CRI unique advantages, can be widely used in urban road lighting. Housing available PC pipe production, high temperature of 135 degrees, low temperature of -45 degrees.
As the world’s most high-profile of the new generation of light, LED because of its high brightness, low heat, short-lived life, non-toxic, recyclable applications, etc., are known to be carried out in the 21st century’s most promising green lighting.
From 1962 the first red light only since the birth of the semiconductor light-emitting diodes, people continue to develop orange, yellow, green and other color LED, and for a variety of signal indication, logos, digital display, and gradually developed into a small LED display, etc. . It uses solid semiconductor chip as light-emitting materials, when the release of excess energy, causing the photon emission, can be applied to produce a semiconductor light source PN junction is made of the LED, came in the early 1960s, in 1964 successfully developed the first red light-emitting diode, yellow LED appears.
America is currently estimated that about 36 million lights, the end of last year, the United States LED lights penetration rate of about 6%, from around the United States government released tenders situation, this year’s estimated market size of the amplified standard case 40 to 45 % this year, before the end of the LED street light penetration is expected to grow to 10 percent, the company outlook with the market performance this year will also be expanded and stable growth of 40 to 45%, the future still has much room for growth.
Compared to Taiwan and mainland China, in fact, higher tariffs in Europe and America, and in the high tariff environment, both the Government and the people for saving products is relatively felt, especially in the United States every continent the high cost of public electricity costs, not Central Government to promote, local governments will actively carry out street lights replaced less multilayer barriers hinder government, the U.S. replacement market development speed street representing Taiwan and China will be more rapid.
In addition to the U.S. market, the industry is also optimistic about the development of the European lamp replacement market, especially in Europe, the government is limited by the current poor economic conditions, the real opportunities not replace fermentation, now is the layout and each industry to prepare in advance a good time, once the European economy improved, replacing the huge business opportunity ensued, Taiwan LED industry can replace the opportunity to compete for the lights of the battlefield, it is no longer only the Chinese mainland.
