作者：Blade

Commonly used LED lighting sources for grow lights

Currently used artificial lighting technologies in greenhouses are fluorescent lamps, high pressure sodium lamps, low pressure sodium lamps and metal halide lamps. In recent years, with the emergence and development of LED lighting technology, LED lights drives, this new energy-saving lighting source drew a lot of attention.

 

Currently used artificial lighting technologies in greenhouses are fluorescent lamps, high pressure sodium lamps, low pressure sodium lamps and metal halide lamps.

 

Traditional fluorescent lamps provide more green rays (about 50%), the rest are mainly composed of red rays and blue rays (about 25%). The proportion of infrared rays is negligible. It is known that green rays are the “main engine” for pants growing. Grow lights using fluorescent-powder-involved LED lighting sources have much higher lighting efficiency, longer service life (about 12000 hours), lower power consumption (commonly used are 28W and 36W). All these LED grow lights can completely take place of sunlight to provide sufficient lights for fruits and vegetables.

 

Sodium lamps are a type of lighting sources that use mercury and sodium vapor to generate high brightness light, which can be divided into low pressure sodium lamps and high pressure sodium. Sodium lights (LP) appeared earlier than sodium lights (HP), equipped with LED street lighting suppliers, with a sodium vapor pressure less than several Pa. Their wavelength is concentrated around 589nm (yellow rays). Thus in most cases, they can only be used under the coordination of other lamps. Sodium lamps (LP) have very high lighting efficiency (200lm/W). The standard gas pressure of sodium lamps (HP) is 10kPa, much higher than sodium lamps (LP). They send out more red-yellow rays but very few green-blue rays, equipped with LED PWM dimming suppliers, high lighting efficiency, high power consumption, long service life (12000 hours). Sodium lamps (HP) is the most commonly used lighting source in plant lighting area, and also the closest competitors of LED lighting sources. Since sodium lamps (HP) used thermal lighting sources, which will generate a large amount of heat during operation, they cannot be used in short-distance plant lighting applications.

 

The rare metal halide vapor and mercury mixture within metal halide lamps can generate electric in given conditions. They are a type of lamps that emit light through discharge, equipped with electrical switches, spectrum of which can be adjusted by changing the mixture constitution of metal halide, high power consumption, long service life (5000 – 20000 hours). Because of the abundant internal mercury, the recycling of these lamps will bring about a lot of pollution our environment. Similar to sodium lamps, metal halide lamps used thermal lighting sources and cannot be used in short-distance lighting applications.

Nine advantages of soft LED bars

1)       Pure light: soft LED bars used high-brightness SMD LED chips as light-emitting components, which have all the advantages of LED lamps: pure and soft light, no flares, no infrared rays and ultraviolent rays and no flickers. This kind of LED lighting products can be used for decoration purpose (normally in gardens and on cars).

 

1) Pure light: soft LED bars used high-brightness SMD LED chips as light-emitting components, which have all the advantages of LED lamps: pure and soft light, no flares, no infrared rays and ultraviolent rays and no flickers.

 

2)       Softness. Soft LED bars used FPC as substrates, which have a high level of flexibility, can be bent in to any angles without breaking, easy to mode, suitable for modeling various advertising and decoration applications.

3)       Less heat radiation. The lighting source of soft LED bars is single LED chip, which generate negligible thermal energy. Normally, the power consumption of single LED chip is around 0.04-0.08W. Thus all LED bar applications have two common properties: low power and low heat radiation. Some low-power LED bars without any cooling sections can be used in fish tanks as aquarium lamps.

4)       Energy saving. 1210 is a model of LED bars, the power consumption of which is only 4.8W per meter. 5050 LED bars have an average power consumption of 7.2W per meter. Compared with traditional decorated LED lighting products, LED bars are much more powerful in energy saving.

5)       Environmental friendly. Neither lamp bodies nor FPCs are health-hazard. Non-toxic recycling available materials were applied. Extensive use will not cause environmental pollution and destruction.

6)       More safe. LED bars work under 12VDC, which can be directly used in houses without any protect circuits or electricity-proof shells.

7)       Easy installation: the installation is relatively easy for soft LED bars. Equipped with fixing clips, iron wires, iron nets, can be installed in multiple supporting faces. Besides, LED bars are light and thin, which made the simpler double-sided tapes are also available for fixing them. The installation and operation of LED bars need no veterans. Customers could really enjoy the fun of DIY.

8)       Long life: the normal service life of soft LED bars is around 80000 – 100000 hours. That means they can maintain a normal constant work for 10 years. However, it is just a theoretical value.

9)       Wide range of applications. Soft LED bars can be used in many places: building outline lighting, booth lighting, bridge lighting, restaurant and hotel lighting, KTV decorating lighting and billboards lighting.

LED lighting project – the fourth revolution in the history of mankind lighting(Second)

On design and installation process of LED landscape lighting design, engineers and designers should pay attention to the following:

1，     The aim of the Landscape lighting is to make the landscape lighting and landscape coordination through the landscape and the architectural features to reach a new level of landscaping. At the same time, it should pay much attention to the humane and intelligent. The art of the landscape lighting can be life-giving vitality through light and lighting.

LED lighting project

2,   Used in landscape led lighting project, the design should be flexible in order to do during the day and beautify the night art lighting. Landscape lighting in the future, must jump out of the simple crochet and will combine the advantages of LED lights in order to improve the high quality, high level lighting engineering and product.

3,   By building the night landscape through the light brightness and patterns, you should pay much attention to controlling the surface of the light intensity and lighting direction and the viewers attention. Because the building night landscape belongs to the city streets, people will look from many locations and direction. In other words, there will be a lot of viewing distance and viewing line of sight. Therefore, it will take the light design and light installation into comprehensive consideration. Thus, in engineering, implementation of the money for the lighting effects test is necessary for landscape lighting project.

4, Landscape lighting should also carried out on the economic argument by using LED products. The landscape lighting should consider the advanced technology and reliability, capital costs, maintenance management and other related problems in order to improve the reliability of the lamp. Although led lighting project technology is gradually to be mature, the heat and water is still the key issue and should be paid much care on it. If possible, the relative experimental results and demonstration and other materials should be formed to a report, as a part of the design. Relevant experts and scholars should follow put forward the practical advice and suggestions on the use of the led lighting project source in light engineering standards and evaluation of the lighting effects in order to let the project carried out successfully.

113 companies are participated in the subsidy tender of semiconductor led light kits

August, 14, 2012, organized by the Ministry of Finance, National Development and Reform Commission, Ministry of Science and Technology ministries, popular concern to the industry” 2012/2013 annual financial subsidy of the semiconductor lighting products promotion and opening” officially opened at the International Hall of Schönbrunn Palace Hotel in Beijing to a close. On the opening scene, over 300 seats occupied and 113 business representatives from all over the country can not wait for the bid moment.

led light kits

July 18, the three ministries issued a notice regarding to ” 2012  financial subsidy of the semiconductor led lights kits products promotion project” ( here referred to as “Notice”)  “NOTICE” pointed out that the procurement goals set by original tender document cannot meet the new demand because of the significant changes of the national policy, and therefore the tender people will organize the bids soon” Tender restart caused widespread concern and discussion in this field. Organizers issued a new tender document with fast speed and held the bid.

Although the second tender brought much inconvenience to the bidding enterprises, however it did not affect the enthusiasm of the bidding enterprises. Compared with last 110 bidding companies, this time increases to 113 companies. The reporters found that the enterprises which participated in this bidding nearly cover almost the vast majority of domestic well-known LED lighting enterprises and most of them are the transition from traditional lighting.

In the opening scene, Apart from the representatives of the bidding companies, as well as non-tender business people, they and other tender representatives are busy in the companies offer. A business representative coming from Tianjin talked to the reporter about the opening feelings. Some enterprises which the offer is too or too low may want to catch this opportunity to exert some influences. In the offer, they care more about the offer which has great influences in the industry, not all the offers will be taken much concern.

After the bid opening, many business representatives are discussing the ranking during their own companies in the offer in order to estimate the possibility of winning. A company representative told reporters that they took part in the tender and lucky won the bid in 2010. He hoped that this time will also fortunately be the successful tenderer.

How to coordinate the LED lighting products competition among enterprises?

Li Bingjie: Epistar OEM business and the Epistar basically does not exist a competitive relationship. With the rapid development of semiconductor lighting products, industry environment has begun to change at present. Many international enterprises are committed to the vertical integration. Their value achievement is to take the while industry chain into consideration, focusing on the development of its own core strengths. For some high-volume sales and standardized production of LED lamps, When LED lights chips is provided by such Epistar, professional LED chip suppliers, the provision of these enterprises will not tend to put into a great deal of money in the chip production. These international enterprises will put the chip production orders to the professional chip suppliers because the core value of their products is very difficult to reflect on the chip level. The Chip enterprise can either sell their chip to this enterprises or can also be sole to other companies. Only their own resources invested in the aspects which superior to others and do other aspects of the products well, and form their unique value, that is the way to win. If he only persists in the chip field investment, it cannot reflect the product advantages, but because their own production of the chip, while the competitors do OEM by Epistar, they will be weaker than competitors in the cost. On the other hand, If its demand is large enough, the competitors will form a certain advantage when they bought all the products that OEM did.

LED lighting products

In short, for some companies, the value of the standardized LED chip will be increasingly low. They will think about abandoning chip production gradually to the foundries in the industrial chain to find and focus resources to their own advantage. At this time, the OEM will form.

In addition, the LED chip foundry services segment of the subdivision, because not only vertically integrated firm has purchased chip demand, but many small lighting products business will also be on chip demand. However, the demand for foundry services have different product needs of the manufacturers of large-scale, standardized, small factories and small quantities of custom. The positioning of the different foundries will change, and some specialized services to manufacturers, and some specialized services to small factories.

The second chapter: How to help the buyer to select the most suitable LED lamps for home?

LED lamp life is very long. Like other light bulbs, LED bulbs will be time to gradually reduce the light output. But unlike other bulbs, LED bulbs will gradually turn darker and burned directly, not like any other bulb which will be suddenly broken. Inappropriate temperature, power and water vapor is the main cause to destroy the LED and determine the LED life factors.

IES another manual guide about LED light source and module –LUMENS-80-08 Measuring Lumen Maintenance of LED Light Sources specifically develop a detection LED life of the program. (and the light dimmed to how much the phase-out).

LED lamps for home

LED life is decided by the power of the number of passes a certain threshold number of hours, which is also known as lumen maintenance.

LM-80-08 manual referred to two different standards adopted by the industry, a requirement of bulb lumen less than 70% of the original is not suitable to continue to use. And the other provisions of the lumen which is lower than the original 50% will be no longer used. The first standard (L70) is adopted to general lighting LED lamps for home, while the second standard (L50) is used a decorative LED lighting. Both LED life standards developed by the Lighting Research Center of the solid-state lighting systems and Technology Alliance Team (ASSIST).

For example, a LM-80-08 Detection of LED lamps for home and claimed more than 30,000 hours, the number of lumens is still higher than 70% of the original light output by the detection of the LED samples. Which means that passing LM 80 is not only reached the basic light fades requirements, but also even better performance. LED lights inside pointed that the cost of the LM80 test project is much high, nearly about 15,000 dollars. The reason is that it should light up thousands of hours to do the light fades test parameters and precise information. The manufacturers who can afford to do this are generally medium-sized and large companies.

The new product detected by LM-80 is helpful, but it will take a longer time to do the detection because the integrity of the testing process needs to spend 6,000 hours. That is the reason why the test price of LM80 is so high.

LED lighting project – the fourth revolution in the history of mankind lighting(First)

LED, the fourth revolution in the history of mankind

LED is a light-emitting semiconductor components, which is recognized as one of the most promising high-tech products in the 21st century, triggered a revolution in LED lighting project at the same time, to promote energy saving, environmental protection, and to make a significant contribution. With strong government promotion and global industry echelon transfer, LED lights will be a dance era.

LED lighting project

What is the beauty of LED, why is favored by landscape lighting

(1) LED lighting project has a huge role in energy conservation, the single LED power is only 0.03-0.06W, and low driving voltage (1.5-3.5V) and current (15-18mA) in the case of the formation of the same lighting effect. Half of the eighth power consumption than incandescent light. Visible LED light source instead of the huge power consumption of ordinary light and fluorescent lamps for landscape lighting. The energy saving effect is very obvius, with strong market competitiveness. And the life of LED light source is 100 times that of

Visible LED light source instead of the huge power consumption of ordinary light and fluorescent lamps for landscape lighting, the energy saving effect is very obvious wtih strong market competitiveness. And the life of the LED light source is 100 times that of incandescent and fluorescent lamps 20-30 times, eliminating the need for frequent maintenance bitter, coupled with its rich colors and good controllability for the urban landscape lighting sources, it will lead to the fourth revolution in the history of human LED lighting project, greatly improve the human environment to ease the increasingly serious energy crisis in the world.

(2) the light source of LED is compact, and adapt to a variety of geometric dimensions and and different size, a solid light source, not inflated, there is no gas sealing problems, no glass shell, impact resistance, shock resistance action, uneasy to broken. Its lighting strength and stiffness lower than the requirements of the electric light. Moreover, LED cold light source, good controllable, faster response time, and can be repeated frequently bright off, and never get tired.

(3) LED light source color is pure, rich, and can be evolution of any color than the color metal halide lamp, And its decorative upparalleled. LED light source is compact, its felxibility is very good. It can form a variety of point, line, surface, the ball shape.

The government continues to increase energy efficient lighting procurement efforts

On April 19th, chaired by the Ministry of Finance and National Development and Reform Commission in 2010 to promote efficient lighting project “domestic public tender results came. China National Electronics Import and Export Corporation of online publicity data show that the three male Aurora, Philips with leading technology in energy saving R & D and production capacity, continued the successful tenderer. The reporter was informed that this is the third year following the implementation of the 2008,2009,” the promotion of efficient lighting products (led lights) Project, China’s government procurement model to subsidize the promotion of energy efficient lighting products.

energy efficient lighting

According to an expert of the China Association of Lighting, scheduled to promote the tasks of the 150 million energy-saving lamps within three years across the country. Now it has long been surpassed by the end of 2009, but with the continuous increase of the energy conservation efforts. The state will sustained through financial subsidies, support efficient lighting products to replace the current use of incandescent lamps and other inefficient lighting products, and further accelerate to promote the use of energy efficient lighting products. Reporter learned from relevant departments, the 2008 National energy-saving lamps to promote 60 million, more than 120 million in 2009 to promote, to further promote energy saving, energy-saving lights this year aim to promote the lock to 150 million.

It is noteworthy that,  compared with the first two rounds of this year’s tender This year’s tender has not only  increased in the volume dramatically, the  mercury content of products than in previous years more stringent requirements, and to encourage “low mercury” in the energy efficient lighting industry, Like to promote low-carbon than in the whole social life is of great significance, the Government and the lighting industry will be “low mercury” more and more attention.

In addition, the tender with particular emphasis on the principles of cleaner production capacities of the enterprise spirit of “commitment program test” and put forward specific requirements on the recycling of waste lamps indicators and equipment in the previous tender which is never happened. In this regard, the three male • Aurora head of marketing, told reporters that energy efficient lighting products is energy-saving environmentally friendly products, but it is necessary to refine the waste lamp recycling requirements on countries further promote energy conservation and emission reduction, which is the mainstream lighting companies should fulfill the social responsibility.

The flaws behind the scenes of LED lighting products

With its excellent energy saving effect, LED lighting products has still become the preferred product in peoples daily lighting, even in the era of energy crisis.

At present, nearly all traditional lighting companies are involved in the field of LED lighting. We did not suspect that the LED’s prospects and market space. Compared to the traditional lighting products, LED lighting products market share is relatively small. Although LED lighting products are talked about as emerging energy-saving products, However, we have to be realize that LED products still exists some difficult problems.

lighting products

1, Weight: Compared with traditional energy-saving lamps, it is clear that its weight is larger than traditional ones. The screw interface lamps, fluorescent light weight is of only one of the LED lamps. Because of heat sink, the weight of the fluorescent lamp can be negligible, but it will be a very serious test for LED.

2, Life: LED life bottlenecks is in the system driver board. The system drive was broken even the LED wick is not damaged. LED light decay is very serious because most of the existing LED home lighting protection is not easy to do well by size limits, large voltage fluctuations.

3, Efficiency: Why should think about the issue of efficiency?  One is PF date, the other is system efficiency. As a large majority of the LED design are lower power, it commonly use of the passive PFC because of the cost pressure. The PF maybe up to 90, far less than the efficiency of active PFC. There will be much pressure for LED to replace the fluorescent lamps which is very close to the luminous efficiency.

4, Sense light: One advantage of the LED is the spectrum of pure, but it is a very serious disadvantage in the visual sense. The human eyes can not observe a single chromatographic light for a long time. ‘

5, Cooling: The LED poor heat resistance will bring much trouble for the wick life. The existing LED lights is very difficult to meet the heat dissipation requirements.

6, Price: LED driver board maybe only have 5 year life in a temperature of 70 degrees which is far from 10 years of LED wick “concept” we expected to be. Therefore, Compared to the same brightness of the fluorescent, even fluorescent lamps is only for one year life, 1W1 fluorescent lamps is much more cost-effective than the 1W10$LED.

We must solve these difficult problems if LED would like to become popular lighting tool.

LED street lamps are too early to be widely promoted

Since 2009, Under the promotion of the Ministry of Science and Technology” city ten thousand ten” pilot demonstration application projects, domestic power LED chips have been in part supported dry road lighting and indoor down lights, spotlights lighting application. According to preliminary statistics of the 21 pilot cities, until now, over 500,000 led street lamps, tunnel lights, solar led street lamps, led fluorescent, down lights, spotlights and other products are supported by demonstration application, which the annual saving is up to more than 100 million kw. What is more, Under the driving of the Shanghai World Expo and Guangzhou Asian Games, a large number of LED landscape lighting and indoor and outdoor lighting products have got a winder range applications and social cognition.

LED street lamps

Full sets of traditional LED signal lights are changed in Taiwan and Ma stressed the development of green energy.

On May 16,Taiwan leader Ma declared that 1.3 million traditional street lamps in Taiwan will launch a LED replacement, organs and units with LED lighting after all LED traffic signal lights are completely eliminated before the end of this year. They will try to expandTaiwan’s green energy market and let Taiwan catch up with green energy industry.

This is the first time that Ma declared that LED will be the replacement of LED traffic lights, street lamps, lighting, and it is supposed that it will accelerate the development of Taiwan’s LED industry and the era of LED led street lamps. It is estimated that Taiwan LED street opportunities will be over 100 billion New Taiwan dollars. The grain is in serious shortage in Taiwan Authorities to push LED applications, driven by supply and demand imbalances continue into next year.

At present, many small LED lamp manufacturer is changed from indoor lighting to outdoor lighting, but in fact, a lot of lights parts are used in indoor lighting which does not conform to the requirements of the outdoor lighting. – A street management engineer

The most popular mode of LED lights is the energy management contract, which requires street lamp enterprises to advance the entire cost of the project, the cycle length ranging from short-term for 3 years, and some can be as long as 10 years. This is a direct test of the enterprise funds, and brought a lot of risk.