作者：Blade

stealth led grow lights and led drivers

LED digital tube display use the drive circuit to drive the digital tube segment, which shows what we want, therefore, according to the different ways on the drive LED digital tube can be divided into static and dynamic categories .

stealth led grow lights and led drivers

A, static display driver:
Static drive, also known as the DC drive. Static drive means to each tube for each segment of code consists of a microcontroller I / O ports to drive, or use, such as BCD code – decimal decoder decoding to drive. The advantages of the static drive is programmed, the display brightness, the drawback is that takes up I / O ports and more, such as driving the 5 digit tube (stealth led grow lights)  static display, 5 × 8 = 40 I / O port to drive, be aware that a 89S51 microcontroller available the I / O port 32. Must be increased so the practical application of the decode drive to drive, increasing the complexity of the hardware circuit.

B, dynamic display driver:
Digital dynamic display interface is one of the most widely used microcontroller, a display, dynamic driving the all digital tube  (stealth led grow lights)  8 shows the stroke “a, b, c, d, e, f, g, dp” with the same name connected together, the other to increase the bit strobe control circuit for each of the tube very COM-bit strobe controlled by a separate I / O lines, when the microcontroller output glyph code, all digital tube received the same font code, but what is the digital tube will display the shape, depending on the control of the microcontroller strobe bit COM terminal circuit, so we just need to display digital tube strobe control open, the bit on the show the glyph, there is no digital strobe tube will not light.

Through time-sharing in turn control the COM side of each LED digital tube, so that in turn controlled display various digital tube, which is dynamically driven. In the rotation display process, per bit digital tube light time of 2ms, the human visual persistence of the phenomenon and the light-emitting diode (stealth led grow lights) afterglow effect, despite the fact that you number the pipe is not lit, but as long as the sweep The aim of speed is fast enough to create the impression that a stable set of display data, there will be no light flashes, the effect of dynamic display and static display is the same, can save a lot of I / O port, and lower power consumption.

Constant current driver with constant current driver on the LED digital tube is mainly the following:

1, showing the effect:
LED tube is basically a current sensitive components, the dispersion of the forward voltage drop large, and also with the temperature, you need to make it a constant current in order to ensure digital pipe has good brightness uniformity, and can not be temperature and other factors. In addition, when the temperature changes when the driver chips also can automatically adjust the size of the output current in order to achieve the temperature compensation of the color balance.
2, security:
Even short-term current overload may also cause permanent damage to the LED lights, digital tube, constant current drive circuit to prevent current fault extensive damage.
In addition, the Commission adopted VLSI characteristics of cascading delay switch to prevent reverse voltage spike damage on the light-emitting diode. VLSI also has thermal protection which automatically shuts down when any one temperature exceeds a certain value, fault indication and can be seen in the control room.

street solar lighting in LED machine

The jetting, belongs to the new led lights technology, which uses a nozzle alternative to syringes, to solve many problems. Jetting nozzles needed to fill the bottom of the device above the dispensing need to reach their location below the top (street solar lighting). Jetting nozzles in the entire circuit board side along the x and y directions, without the need for vertical movement.

street solar lighting in LED machine

And dispensing syringe, the nozzle does not form a continuous bottom-filling glue flow, and replaced every second jet more than 200 points after accurate measurement of the gel-point. With the move of the nozzle level, the gel-point can be the formation of linear and pattern of a variety of needs, the solid line, dotted line and a variety of other different graphics. Each jet by precise control of a jet formed by the gel-point minimum diameter of up to 0.33mm, for coating plastic patch area into the precise control of occasions is very important.

 

Injection technology is the glue from the nozzle at a faster rate, rely on glue momentum to make glue out of the nozzle. Each jet  (street solar lighting) will spray out a certain amount of glue. Common injection frequency is 100 Hz to 200 Hz, but will soon reach 1000hz. , There are several different jet dispensing needle dispensing. When the glue from the nozzle, before the glue in contact with the substrate and the separation nozzle. Each of the gel-point injection into the substrate to form points, lines, and graphics. In the dispensing position during the move, the dispensing head is not the movement of the Z-axis direction, thus saving a considerable amount of time. Needle dispensing robot in the X, Y, Z axis movement, glue flow from the needle out of contact with the substrate, relying on gravity and the substrate surface tension glue isolated from the needles. After the completion of each dispensing, a movement along the Z axis, and then move to the next dispensing position.

The LED products market is also benefiting from the spray adhesive technology. Spray adhesive process can spray a wide range of optical materials including silicone, UV curable conductive adhesive of the phosphorus doped in the high-speed dispensing position and precise dispensing and plastic volume control. The accuracy of the spray adhesive can improve the yield of high-value high-power LED street lights devices. Applied to the white light  (street solar lighting) production, phosphor powder and mixed glue dispensing, its consistency is a good improvement.

street solar lights in LED lumen

Increasing LED lights brightness can be broadly divided into two types, one is to increase chip itself, the amount of light emitted; Another method is the effective use of the light generated by the chip, increasing the exposure of the light irradiation to the expected direction.

street solar lights in LED lumen

The former is trying to improve the luminous efficiency of the chip active layer, as well as to improve the chip shape to increase the external light extraction efficiency, or chip, large-scale use of high current density to increase the amount of light emitted; the latter is the use of light wave control technology, that is, the package resin to form a special optical structure, the chip produced by light irradiation to the expected direction. If the LED (street solar lights) screen brightness of less than the expected value, you can also try using the following methods to improve the brightness after use.

(1) Changing the flow through the LED current, general LED tube  (street solar lights)  to allow continuous current at 20 mA or so, in addition to the red LED saturation phenomenon, the other LED brightness is basically proportional to the current flowing through.

(2) the use of the human visual inert gray scale control pulse width modulation method to achieve, that is, cyclical changes in the optical pulse width (duty cycle), as long as this repeated cycle of light is short enough , the human eye do not feel light-emitting pixels in jitter. LED display to provide a pulse width modulation is more suitable for digital control, so in general the use of computer content, almost all of the LED control system is usually composed from three parts of the main control box, the scanning plate and the display and control device. The main control box from the computer’s graphics card to obtain a screen pixel colors and brightness information, and then re-allocated to a number of block scanning plate, each scanning the board responsible for controlling the LED screen on the number of rows (columns), and each row (column) on the LED display and control signal with the serial transmitted. There are two serial transmission of control signals: one is to scan the board centralized control of each pixel grayscale scanning plate from the control box of each line of pixel brightness value decomposition (Pulse Width Modulation) then the opening of the line LED signal  (street solar lights)  pulses (light does not shine to 0) to the corresponding LED on the line with serial transmission, control whether the light. Used in this way the device is less, the serial transmission of data in a repeating cycle of light, each pixel requires 16 pulses in 16 gray, 256 gray scale needs 256 pulses, the device operating frequency limit, generally only the LED lights screen to do the 16 gray.

DOE: LED lighting products will be the most environmental friendly in the world

From a recent report published by Department of Energy (DOE), LED lighting products will be the most environmental friendly in the world. The most significant difference between LED lamps and traditional filament lamps is the degree of the impact on the environment. This report classified lighting industries as 5 levels in terms of environmental contamination or environmental effect. Among all kinds of lighting products, LED lights have been listed in level 5. “It is the last product that will cause damages to our environment.”

DOE: LED lighting products will be the most environmental friendly in the world

In another article named “The Manufacture and Effect of LED”, the author compared three different lamps (Filament Lamps, Compact Fluorescent Lamps and LED Lamps) in aspect of service life, production process and operation conditions. This report did a comprehensive study for the effects impacted by these bulbs during their packages, transportations, works and recycles. This is also the first report that discussed LED lighting products officially. DOE always spent a lot of energy on environment protection, especially for air and water sources, to maintain the international competition of the United States. There is another important reason: to save loads of money for families and companies.

 

“Review of the Lifecycle Energy Consumption of Incandescent, Compact Fluorescent and LED Lamps” is a conclusion mentioned in DOE’s last report. In this report, DOE continued to use this conclusion and summarized more concrete and detailed estimation.

 

This report suggested that traditional Compact Fluorescent Lamps (CFLs) was much similar with LED lamps in the aspect of energy consumption. Both of them consumed less energy compare with Filament lamps in manufacture, transportation and operation. Due to the high efficiency, 15W CFLs are equivalent to 60W Filament lamps. This report conducted totally 15 tests. 14 of them showed that LED lighting products will be the most environmental friendly among these three types of lamps.

 

In particular, LED lamps have a poor performance in recycling part. The majority of LED lamps are made of aluminum alloy, which will exert a significant effect on the earth after scrap and bury. Even so, LED lamps are still more superior than Filament Lamps and CFLs. DOE gave out several solutions for this problem and decided to improved the production process of LED lighting products to improve this situation.

 


HELLA indicated that LED technology will become the design point to automobile lighting

As a global supplier of automobile lighting and electronic led street lights system, HELLA (German) indicated that LED technology will tremendously impact the vehicle lighting design in next few years. In the interview, Dr. Herbert Wambsganss, the Engineering Director of Internal Lighting Section of HELLA suggested that LED lighting will bring a new era to internal vehicle lighting system. Drivers will find significant changes within cabs, and this LED-related improvement will give them a brand new and comfortable feeling. And also can exalt the brand popularity.

 HELLA indicated that LED technology will become the design point to automobile lighting

“LED is the most advanced lighting technology currently, not only for us but also for our customers. LED lamps emit monochromatic rays, any potentially harmful or unwanted radiation, such as ultraviolet or infra-red light, can be eliminated. Without any flickers, this light is totally harmless to user’s eyes.”

 

Although lighting design is not a primary consideration for passenger cars or commercial cars, HELLA still put this item in the first line of their development agenda for next few years. Some senior managers believed that the usage of internal LED vehicle lighting applications will increase four times within next 5 years.

 

LED technology provided internal automobile designers with a new design concept: how to improve their value in use and users’ driving experience. Data reveal that internal vehicle lamps with different colors will bring passengers different feelings. In one project carried out by HELLA and University of Hamburg, color of internal vehicle lamps will exert different impacts on users’ feelings and comfort levels. Nowadays, every driver in German will spend around 4 hours on average on their daily driving, even more for taxi drivers and lorry drivers. Long-term driving can easily causing visual fatigue and even wore traffic accidents. Over the past decade, HELLA always stressed the importance of internal automobile lighting design. However, no matter how hard they tried, automobile manufacturers were still unable to remove the hazard caused by traditional lamps, such as ultraviolet rays and flickers. It was LED technology that brought them a new life. Now internal vehicle lighting designers can have better performances with the help of LED. Compare with traditional lamps, LED lights gave them much less restrictions.


led lighting fixture end markets caused great concern

As my understanding, the professional management of led lighting fixture manufacturing companies have more than several thousand, but on the terminal market, specializing in LED products and operation of businesses but a few. Apparently, LED store in the market has not yet formed. Recently, the message on the LED store and channel construction of the terminal has caused for concern. Store model as one of the many sales channels, in waged LED on the market, it highlights the unique and innovative and functional models, then the store path of the LED lighting business, whether this kind of model can go or not?

led lighting fixture end markets caused great concern

Piloting view of companies

Wang Yuhong in Qingshang: the existing product line can completely meet the store display and consumers one-stop shopping, and the current LED market dragons and fishes jumbled together, consumers can not identify, Qingshang as LED leading enterprises, through the promotion of stores to establish a brand image, guide consumers to buy good led lighting fixture. Of course, each LED enterprise should consider themselves to determine whether it is appropriate to build LED brand shop.

Oakley Qing said: LED lighting products, class and style richness is far from reach home lighting, lantern level, features and advantages of LED lighting products also makes its choice of channel model compared to the traditional lighting narrower. As far as the LED industry development, the store has become the most viable end-channel model.

The Shengan Guang electric Guan Rui Zhong said: I think the LED store is feasible in a form shape. Although at the end of the market, specializing in led lighting fixture who runs just few business, yet the LED store in the market is relatively rare. But compared to the overall trends, this is an opportunity. LED store is not only a product sales, but more focused on her brand influence and service capabilities. Of course, the rich and high-quality product line support the LED lights stores, which is the basic conditions. However, not all the LED stores can open exclusive shop. Opening stores are the expression of the strength of a business, not having the funds. The most critical issue is that whether the enterprise and business have the soft power or not?

 

 

 

 

The fourth chapter: LED lighting industry marketing innovation “four gold strategy”

To carry out public led lights marketing

For many famous brands, with public service activities to expand the brand, the sales amount has become effective way. National large-scale township promotional activities at the fair Town. The United States in the microwave to select the part of the township primary school to carry out the giveaways of microwave campus, accompanied by activities of “sending film to the countryside”, which spiritual and enrich rural residents and cultural life.  Similarly, since 2006, Sky-worth has launched a project called “SKYWORTH new rural theater project” , a total investment of 10000000 yuan, to 600 counties of countrywide 4000 townships, about 80000000 to 100000000 rural audience film. Sky-worth also has with the vat-ti and song of the four seasons at the led projects. Sky-worth held in new rural theater project about LED lighting industry at the same time, in various parts of the marketing and brand promotion of the combination, in promoting the brand in the process of promoting sales and marketing, in order to achieve a win-win situation.

The fourth chapter: LED lighting industry marketing innovation "four gold strategy"

Lighting industry public service marketing activity first is worthy of mentioning Opple, in 2007, Opple gain a very good reputation through the “CCTV Spring Festival”.

However, this public service activities is best to be able to fall to the ground which is like Mid-ea, Sky-worth, as the middle of the depth of consumers. Last year during the Beijing Olympics, OKES held the floor of the public welfare activities and complimentary LED lighting industry products to farmers and schools in some poor and remote areas. Consistently take the invisible channels of NVC that began to emerge to strengthen the promotion of the ground. NVC initiated this year, “light action” energy-saving lamps, which carried out large-scale public activities “bright line” support the educational undertakings of the mountain villages. This event not only expanded the NVC brand influence, but also benefit for the NVC to deepen the channel construction in third and fourth degree markets.

Almost simultaneously, Op charitable activities fall to the ground in Shandong Province to carry out a “the Yimeng bright line” activities and to help cataract patients back to health. In fact, we can see that these public service activities is a way for three or four markets and rural led street lights markets.

The third chapter: LED lighting industry marketing innovation “four gold strategy”

The development of new LED Lights markets: in the countryside

With the increasing fierce market competition, many enterprises have turned to broad villages and towns and rural areas, in the construction of new countryside under the banner, townships and rural appliance and lighting products demand is increasing, the last year the “home appliances to the countryside” policy to further stimulate the demand, therefore, more and more enterprises began large-scale development in three or four levels of led tubes markets and marketing campaign.

The third chapter: LED lighting industry marketing innovation "four gold strategy"

Mid-ea microwave start to launch “fair 1000 Town Line township promotional activities, which is a popular project of the National Health advocated by the United States in the microwave cooking, organizing related activities in the 1000 township tour last year. Penetrating the “health and efficient fashion” concept into general township. The idea of Mid-ea microwave is that as a microwave oven market, in order to maintain sustainable development, must be from the industry before the vicious competition into training users to expand the market. With the helping of “home appliances”, the vast scale of the township promotion, aiming at watering trees poured root”. The only way to close to the township consumer. So that the enterprises can grasp the initiative in the future market strategy for a population of 900 million.

Mid-ea rural strategy for the LED lighting industry is undoubtedly a useful inspiration. In fact, microwave and general lighting products, led flood lights sales prices and consumer groups are almost the same. Many lighting companies stay in the city, even in the country not involved in some of the pioneer which has been making great efforts to open up three or four markets. Australia  Keshi is an important case to develop the county-level market this year. This year, Australia Keshi lighting Cultural Festival “held in the vast areas of the county, loved by the masses of entertainment and sales promotion. In fact, this is a relatively common terminal promotional activities, but OES did a lot of character, which is very effective to OKES. The sales increased significantly. The next step is to continue to push forward to the town and villages. Of course, there is a certain difficulty for lighting companies. In the township of Chinese LED lighting industry, the store is still rare.

Identification and improvement of LED lighting appliances (1)

LED is a brand new lighting technology. A complete LED product is made up by LED Lights chips, control devices and other auxiliary lighting sections, such as projectors. In this article we will do some discussion about the identification and improvement of LED lighting appliances.

A complete LED product is made up by LED chips, control devices and other auxiliary lighting sections, such as projectors.

Terms of user related to people’s lives and property:

As a type of electrical appliance, operation & safety instructions and warnings contained in owner’s manual should meet the requirement of certain international standards. In this area, Chinese products are using IEC standard. Some made-in-China standards are still referred to the relevant terms in IEC standard and ANSI standards, only some tiny differences.

 

Performance manuals for LED street lights chips, control devices and other auxiliary lighting tools:

Customers bought a product. It is the product function that they actually purchased rather than the product itself. Meanwhile, product function was normally identified by means of performance manuals. “Performance Requirements for General LED Lighting Module”, “Performance Requirements for General LED Ballasts” and “Performance Requirements for DC/AC Supplied LED Control Devices” were three most recently published performance manuals for LED lighting appliances, in which lighting efficiency, light attenuation, service life, energy efficiency and other indicators has been cleared given out. It is rather important for export products. Foreign buyers will be more concerned about product performance as well as product quality.

 

Matching requirements among LEDs, control devices and auxiliary lighting tools:

  1. Different control devices for different LED lighting sources.

Control devices served for LED lighting sources, the design of which should depend on the specific module of LED chips. In theory, safety is the most important indicator of control devices. Since the testing requirements are basically similar to other electrical appliances, it is a bit of easier for comprehend. However, the situation is much complex in matching up with LED high bay lights chips. Optical and electronic related knowledge are necessary. The working conditions of LED lighting sources are generally controlled by control devices. The matching between them is directly affect the lighting efficiency, stability of lighting sources, service life and other performance indicators which are essential for the entire system. However, it is impossible to reach 100% matching. The best matching modes currently can only make LED lighting sources perform as much as 75%-85% of original conditions.


LED bulbs will become the main stream in Japan’s LED lighting market

GFK Marketing Service Japan published a research report for LED lights sold in appliance stores in Japan last month. The result indicated that the sale of LED bulbs is around 43.5% in June this year, completely overtaking the No. 1 position of traditional filament lamps and becoming the main stream on the Japan’s LED lighting market. Meanwhile, the monthly sale of LED Ceiling Lights has taken over the traditional ceiling lamps in the form of fluorescent tubes. After the earthquake in East Japan last year, people’s energy-saving consciousness has been strengthened dramatically. This is one of the main reason for the increasingly popularity of LED lighting products in Japan. Changes are primarily showing up the stable growth of LED sales.

 GFK Marketing Service Japan published a research report for LED lamps sold in appliance stores in Japan last month.

Among all LED sales, LED bulbs took the best performance. In 2010, annual turnover of LED bulbs is only 20%, much less than 50% of filament lamps. After the East Japan Earthquake happened on 11th March 2011, the proportion of LED bulbs’ sales raised rapidly, while the sales of filament lamps dropped a lot. On May 2012, LED bulbs took over the No.1 position of filament lamps and became the best selling products among bulbs. This tendency was expected to be maintained until 2014. GFK Marketing Service Japan believed that under such circumstance, LED lighting products will not drop prices in short term. This market will remain an upswing trend until next year.

 

Same situations for LED ceiling lights, according to reports published on June 2011, LED ceiling lights shared about 15.8% ceiling lights market in Japan. This sale was increased to 42.7% on May 2012. During this period of time, the involvement of Panasonic in this area no doubt played a very important role. Since Panasonic involved in LED lighting field in 2011, the product line has been expanded. Thus in 2012, the sales of LED ceiling lights increased dramatically. The average price of LED ceiling lamps is about 38,000 yen, slipping down 9% compare with the beginning of the year. Diammable or RBG LED ceiling lights emerged in the market recently. These products are more “intelligent” and can change depending on the specific request of customers. GFK Marketing Service Japan believed that these factors are pushing users to redeem the LED ceiling.