In the LED lamps, the heat is directly related to the quality and life，the radiator’s main role is that heat generated by the LED chip is continuously exported and distributed to the environment, so that the chip temperature is maintained within the required range , thus ensuring LED lights properly work. The quality of the heat sink mainly depends on thermal resistance the radiator, the smaller the thermal resistance，the lower the junction temperature of the LED light under the same conditions , the longer the service life of the chip. Under the certain environmental conditions, the heat resistance depends on the sink area of the heat sink, the greater the area of the heat dissipation, the higher the coefficient of the radiation, the smaller the heat resistance, the better the heat dissipation. Thus, LED lamps radiator must have a certain cooling area, while the material making the radiator must have a certain degree of thermal conductivity and high thermal emissivity, the heat conduction is essentially impossible to go outside when LED work. temperature of the air inside the LED beads has reached the 101 degree, the highest temperature is the fifties degrees on the surface of the lamp, a difference of several tens of degrees.
Some lighting designers almost entirely don’t understand the material properties, parrot; because their supervisor or boss also completely don’t know. What the Boss is concern about is the inexpensive and lowest cost. However, if the heat sink material is not applicable, which can not play a real cooling effect, the end result is that the brightness and life of LED beads is reduced, beyond doubt，and thus the overall service life of LED lighting products are also damaged

the material of the Lamp shell
The transparent PVC ,acrylic is adopted for the Low-end products, the PC material is used for the slightly better.

Low-grade goods: PVC, PE, transparent or frosted acrylic.
Mid-range products: PC. Luxury goods: special polymer plastic material. As for the quality of these materials, we all know.
Now many companies do not have their own design, but there is not creativity at all. Most think that as long as the use of LED lamp fixtures, saying he is what the LED industry, especially some large companies is more so. Instead, I would think that many small exported companies pour a lot of thought on the quality and design of the LED, but having no government support, those big company combining some officials and sexy and inferior products cheat subsidies. This is Market field, many manufacturers seem to be experts no mater what lamps they do, and now those good chips, good technology are hold by the hands of all foreign manufacturers.
Chinese LED industry is generally lack of core technology, experienced excess capacity, product prices, small business failures and other problems and crisis. Today, in terms of policy support funds， may ushering in a good stage of development, but if the core technology and technological innovation do not be improved, it is likely recommit the same error, again facing the overcapacity crisis of LED industry. So many LED manufacturers are desperately looking for such LED lamps whose cost is low to manufacture, there is a reason.

However, LED lighting manufacturers deceive consumers in the way, the consequences are very serious, look, last month, the scale of a billion dollars, “Hung Kee Lighting boss on foot incident” caused many LED lighting manufacturers concerned, I believe that many LED lighting manufacturers will change from the perspective of technological innovation.

Fortunately，there are still a large number of excellent manufacturer engaging in manufacturing and researching the LED light，of which the lead lighting is just one，lead Lighting adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver convert the AC into DC so that improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is famous for energy-saving and environmental protection ，login www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

LED light lamp beads 1.LED lamp life Many LED lighting manufacturers conceal the life, even on the color page of their product catalog, at the nonsensical: casually LED lighting product life can be up to 100,000 hours, or even 150,000, 20 million hours. This is indeed a lot.

2. the light decay of LED lamp beads As the LED light up, P / N junction and the entire device is immediately aged due to high temperature, so that the luminous efficiency will be gradually reduced, which is a normal phenomenon, and there are so few the factors that affect the LED light failure: ?, the use of inferior LED lamp, the packaging process of the LED lamp beads is flawed, chip cooling can not well be exported from the PIN feet, resulting in that the excessive die temperature makes the chip attenuation is intensified. Brightness decay rapidly. ?, LED constant current driver, there are some LED voltage lead to the LED attenuation. ?, drive current is greater than the rated drive.

If the bottom glue and the white glue of LED lamp is made of poor epoxy resin and the LED lamp beads packaged by the packaging glue, the single light up at 30 degrees, after 1000 hours, the attenuation data is 70% of the light fades, while the light volume will be drastically reduced after the lamp beads is decayed 70%,. Currently the latest international standards infinite the node that the light of the LED lamps is 70%. The ordinary SMD fades of the LED tube light manufactured by the regular large brands is generally is within 5% in 1000 hours.

However,there are still a large number of excellent manufacturer engaging in manufacturing and researching the LED light,of which the lead lighting is just one,lead Lighting adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver convert the AC into DC so that improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is famous for energy-saving and environmental protection ,login www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

The using problem of the electrolytic capacitor: as far as the use of electrolytic capacitors is concerned, the manufacturers are using electrolytic capacitors as almost 99% of the power of the LED lighting products, the life of the Electrolytic capacitor is completely unable to over 30,000 hours. The aluminum electrolytic capacitors was generally 105 ? / 200 hours 10 years ago,. Which means that life is only 84 days under the conditions of the temperature at 105 ?! Even down to 85 ?, life is only 332 days, less than a year! Continue to reduce to 75 ?, the life will not exceed two years .
Relative to 100,000 hours life and the semiconductor devices and passive components of semi-permanent life, the aluminum electrolytic capacitor is mainly the key components that lead to that the life of the LED is not performing up to the mark Even if using the latest high-temperature electrolytic capacitors whose life is 8,000 hours at 105 ?, according to the estimation formula of the prevailing life of the electrolytic capacitors “temperature decreasing by 10 degrees, doubling the life,” then the working life is 16,000 hours at 95 degrees, the working life is 32,000 hours at 85 degrees, the working life is 64000 hours at 75 degrees, if the actual operating temperature is lower, then life will be longer!

The LED driver technology with no electrolytic capacitor, if from the perspective of the technology of the aluminum electrolytic capacitors ten years ago, aluminum electrolytic capacitors are not capable of LED and other life. Workaround is generally no electrolytic capacitors technology, which is the underlying causes that the technology of no electrolytic capacitors LED driver was popular in previous years,. But the question that can not be said is that what the consequence that the no consequences electrolytic capacitors is adopted is that the performance of LED driver circuit is degradation, indirectly causing the serious shortage of LED life.

Because the design of the drive and power of no electrolytic capacitor supply is to enhance the power and power efficiency, no general electronics designers can achieve. The most important consideration is cost. Currently, the Japan ruby ??capacitor aluminum electrolytic is the manufacturers of the aluminum electrolytic capacitor whose life is exceeded 10,000 hours at 105 ?temperature. Those who understand the Electronic devices all know, not for the particularly high-tech products, there are few manufacturers of LED power afford so expensive capacitors.

2 power factor and efficiency: If the power factor can not be improved to 95% and the power efficiency is more than 85%, it is meaningless that LED lighting products is used to replace the traditional lighting. Therefore, the current 99% of LED lighting products manufacturer (even including all Japanese brand) is totally not up to the so-called basic required standards of the LED lamp.

Low-grade products is purely the power supply that can convert the AC to DC, a little better is those that raises the power factor to between 70 and 85 percent, but the power efficiency is only 70% or even less than 65%. This shows the actual power consumption is that the marked value of the product watts must plus 50 to 60% of power consumption. As for the life of the LED road light even without looking up. Because of its drive,the power life is not 10,000 hours (but at the same time how its cooling effect have to be considered, or even worse ).

3 Because the bipolar power devices is cheaper than the MOSFET,which is generally about 2 cents/pcs, so some designers use the bipolar power devices in order to reduce the cost of the LED drivers, which will seriously affect the reliability of the circuit, as the temperature of the circuit board of the LED drive increases,the effective operating range of the bipolar devices will rapidly reduce, which will lead to the malfunction when the temperature of the device rises so that the reliability of LED lamps is affected, the correct approach is to use MOSFET devices, the life of the MOSFET device is much longer than bipolar devices.

However,there are still a large number of excellent manufacturer engaging in manufacturing and researching the LED light,of which the lead lighting is just one,lead Lighting adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver convert the AC into DC so that improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is famous for energy-saving and environmental protection ,login www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

What the acronym of the LED in English is Light Emitting Diode, as early as the 1960s, it has already started to been produced and has been widely used in household products in 1980, such as audio volume indicator, switch instructions. In the 1990s, the LED has been used in some of the new domestic automobile instrument, mainly used for charging instructions, and later also shows engine speed conditions, such as a combination of instruments produced in Xiangfan Hubei China, a row of LED were erected next to the odometer, When the driver stepped on the gas,the LED bar lights were bottom-up lit, when off the accelerator,LED bar lights bottom-up go out, quite eye-catching and beautiful. In 1990s, China used LED brake light to install in the car, the LED lights up quickly, so that the driver trailing the behind car know what the condition in front of the vehicle to reduce rear-end collision accidents as early as possible. The Category of LED auto-lights: mainly divided into external and internal lighting fixtures. Common lamps are: headlight, turn signals, taillights, fog lights, rear lamps and so on. The following describes what’s the main maintenance and use of the light.
Lighting repair In general, as long as not bright, it shows that the lamp has been burned, which must be replaced. But if not completely broken, but decrease in brightness, the lighting is redness and dim, it must not be taken lightly, because this could be a precursor to failure, the ability of the lighting that has been reduced also major risks of the drive safely. There are several reasons for the decrease brightness, the most common is that there is a plot of dirt on astigmatism lamp glass or the mirror, then what need to do is that use cloth or lens paper to clean the dirt. Another reason is that the capacity of battery charge is decreased, electricity shortages lead to that the bright isn’t enough, so the batteries need to be replaced. Another possibility is that the lines has aged or wires is too small, resulting in that the resistance is increased and thus affect the power supply, this situation affects not only the bulbs work, serious that even lead a fire. ?Maintenance? various lights Headlamp: Generally speaking, the friend who often burn the midnight oil should consider replacing one pair of headlights whose brightness is higher, so that the enough bright help you see all the details on the road and allows you to see farther when it comes to playing away at the dark night. If conditions permit, you can even replace one pair of LED headlamps, which not only ensure the bright, long life, but also has a feature: Color temperature is very high, the color temperature that is close to daylight is kind of protection on the driver’s eyes.

Taillights: Do not underestimate the taillights, if the taillights is broken, which can easily lead to rear-end accidents. Generally speaking, if not failure, n addition to the installation of the transparent lamp to increase the ornamental, replacing the bulbs with the led light is a good choice, led not only increase the brightness, response time has been shortened over that of the traditional light bulb, which means that when you depress the brake pedal, led brake lights can be much earlier lighted up than ordinary light bulbs, so that the trailing vehicle have more preparation time.

Fog light: Fog light is often said as the spotlights. As the name implies, the main purpose of the fog light is to ensure the driver’s view in bad weather, and to ensure that others can see you, but now for many companies, the purpose of installing fog lights is just to make the front bumper more beautiful, so the quality of the Fog light chosen is relatively poor. As the same as the headlamp, beside replace the fog lights whose bright is enough, choosing a hid xenon fog lamps are also a good choice. Rear lamps:

Reversing is really a headache at night, especially the drivers whose eyesight is not good, there is actually not much help for the faint light of the original reversing lights. Then you need a reversing lamps, which is a independent lamps that is installed in the rear protection bar or at the bottom, it automatically light up after you hang down the reverse gear, its strong brightness makes you are no longer nervously when reversing at night.

The LED light has been applied to the car,which proves that delicate appearance and practical performance of the LED light has perfectly matched with the world’s most hottest vehicle. Indeed,the LED light as the third generation of energy saving lighting, in addition to present the unique design to associates with the car , but also combine with medicine, art, agriculture and many other areas to bring us the extraordinary experience and more convenient. Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the home lighting and decorative lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, galleries, exhibition halls and other indoor environments, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness need lighting is needed to illuminate.Meanwhile,there are a large number of manufacturer engaging in manufacturing and researching the LED light,of which the lead lighting is just one,lead Lighting adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver convert the AC into DC so that improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is famous for energy-saving and environmental protection ,login www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.