日期：2012年8月1日

Common sense and errors in LED lights purchase

Some errors consumers may encounter in the daily LED lights purchase. Many customers may meet with such situations more or less: when they intend to buy some LED lighting products, shop keepers may give some malicious misleading, like “this lamp has three LED chips while that one only has one chip. This lamp can provide three time brightness than that one.” This is not true. LED chips from different LED manufacturers have different lumen outputs and light efficiencies due to distinguished LED technologies. LED chips on the market can be classified as high-power LEDs, mid-power LEDs, low-power LEDs, etc. For example, the normal lumen output of a mid-power LED chip is around 45lm, while a high-power LED chip can have a lumen output around 120lm. It is not surprisingly that single-LED lamps can emit brighter light than three-LED lamps. On the other hand, the production cost of high-power LED chips is normally higher than low-power LED chips.

Many customers may meet with such situations more or less: when they intend to buy some LED lighting products, shop keepers may give some malicious misleading, like “this lamp has three LED chips while that one only has one chip.

Some customers still used traditional selecting methods (40CD, 60CD), which are typically used on purchasing filament lamps, when choose LED lights. Not every high-brightness LED lamps will consume more energy. This is another misunderstanding in LED lights purchase. In fact, the brightness of lamps can be described by a technical term: luminous flux or lumen output (lm). Comparing the light intensity of two LED lamps should compare the lumen outputs rather than the power consumption. Unlike filament lighting technology, which was developing for more than 100 years, the new-born LED technology is in process of huge innovations. If a 7W LED lamp consumed less power than an 8W LED lamp, it is proved that the 7W LED lamp has a higher light efficiency. Since most of customers are not familiar with the technical term: lumen, some manufacturers may probably mark “Equivalent to 40W Filament Lamps” on their products to help understanding.

 

Compared with traditional filament lamps and energy-saving lights, LED lighting products have a lot of advantages. However, there are also some disadvantages, such like the high selling prices. Besides, LED lights cannot work in high temperatures. If the temperature of electronic components increased by 10℃, the service life of this lamp will be dropped by half. LED manufacturers have to improve their cooling technique and meanwhile control the production cost within a reasonable range.


LED Grow Lights provide sunlight for “underwater” vegetables

Viewed led lights from afar, this place has no differences with other factories, except for staffs dressed in white lab coats. When we entered inside, it is totally different: rows of shelves, bright lights, orderly infusion tubes and plants grew in the “water”. This is the first domestic IT Plant Factory – Shandong Green Dragon Ecological Agriculture Demonstration Garden (SGDEADG).

 Viewed from afar, this place has no differences with other factories, except for staffs dressed in white lab coats.

“You should never underestimate this only 616 square meters workshop. It was able to produce hundreds of tons of vegetables per year.” Introduced by Enguo Yang, the general manager of SGDEADG. Plant Factory concept was first proposed by Japan. The essence of which is using computers to control the raise (produce) vegetables. In 2010, SGDEADG started to cooperate with powernet and introduced advanced technology and equipments from Japan. With the guidance and technical supports from Tsinghua University, China Agricultural University, Shandong Academy of Agricultural Sciences, SGDEADG improved the existing IT Plant technology to realize the domestication of technology and equipments.

 

The entire plant factory is completely sealed, maintaining in a constant-temperature and constant-humidity state. Modern monitoring equipments and all kinds of measuring sensors have been installed in every corner to monitor and control the air compositions. It is noticed that 960 pieces of led grow lights uk were hanging on the ceiling, letting out red and blue rays. “These led grow lights uk can completely replace the sunlight. The average luminous flux near the ground is about 450lm, which is sufficient for our plains. Besides, these lamps maintained 24-hour red-blue alternative rays but cost only a very limited energy. This is really amazing.” Said Mr. Yang.

 

Workers there all had abundant professional knowledge or received professional trainings. They used nutrient solution instead of soil to raise plants and were joking as vegetables underwater. Insect nets and supporting isolation devices can effectively prevent the intrusion of pathogens. By the comprehensive applying of multiple sophisticated automated systems, SGDEADG has realized the accurate control of plant growth, and thus provided the best growing environment for vegetables. When asked why they chose led grow lights uk as lighting sources, Mr. Yang replied: “LED is the most advanced lighting technology currently. They can generate one-direction rays, like red rays and blue rays, which is just need by vegetables. These lamps can make our plants grow even faster.”


LED recycling has become a new topic

At present, LED lighting technology has been widely spread and gradually taken the place of traditional filament lamps. In the issue of environmental protection, LED is superior to traditional lights. It is the most advance lighting technology currently, which is not only energy-saving but also harmless to human body and environmental friendly. Since LED lights are usually reliable and can be used for a long term. Only a very few of people take their cycling into account. This article will talk about some notice points of LED recycling.

At present, LED lighting technology has been widely spread and gradually taken the place of traditional filament lamps.

LED lamps will maintain an environmental friendly condition in their service lives. Research results indicated that more than 95% LED lamps are recyclable. Recycling companies will buy these scrapped LED lighting products at low prices. LED products have no health-hazard materials, which have been classified in RoHS standard. RoHS certification was implemented in January of 2006 in England. This standard has rigid restrictions on toxic and health-hazard substances using for electrical and electronic equipments. Mercury-containing lead, cadmium and other toxic substances has been defined as toxic and restricted in selling. LED lamp bodies are usually made by aluminum alloy, which completely meet this standard and can be recovered.

 

The general process of LED recycling is crushing and lamp body separation. Glasses will be transferred into a magnetic field which can separate any non-ferrous metals. In order to remove the aluminum and lead of LED lights, non-ferrous metal separators blasted among crushed glass, leading metals into an isolated slot. The rest of glass and aluminum can be made into other products. Glass will not downgrade due to recovery. It can be repeated recycling.

 

If we can recover LED lighting products in right ways, they will become even more environmental friendly. A recent study from University of California demonstrated that most LED lights contained a high proportion of nickel. RGB LED lights contained high levels of lead and arsenic. Since LED products are mainly made by aluminum alloy, they cannot be directly discarded like bulbs. Burying will lead to a long-term damage to the earth. In view of the high demand of LED lights in recent years, the LED recycling became far more important than extend their service lives. Recycling will become a essential point for LED’s sustainable development.


LED vehicle lamps can save more bucks for drivers

LED lighting technology has become the main force on the residential lighting (led lights) market. And meanwhile it is occupying the industrial and commercial lighting market. Experts estimated that after 2015, LED vehicle lamps will widely spread all over the world. It is very important for electric vehicles. As a type of new-energy-applying transports, electric vehicles are still in an immature stage. In order to obtain a more stable working condition, designers may probably choose those internal equipments which can save more energy, such as LED lighting technology.

 LED lighting technology has become the main force on the residential lighting market. And meanwhile it is occupying the industrial and commercial lighting market.

OSRAM indicated that after 2020, the estimated occupation of LED vehicle lamps in head lights and day-time lights market will increase from 13% to 34%.

 

LED vehicle lamps is not a new words for us, a large number vehicle manufacturers has already applied LED lighting products around their head lights and tail lights as auxiliary lighting tools. “LED can generate a more soft light, which is very important for night driving. We have conducted several tests, and the results indicated that LED heat lights and LED tail lights will reduce the accident rate by 2%-5%. ” Indeed, LED lighting technology can save a lot of money for buyers, but it is also cost a lot to produce them. The sales director of OSRAM suggested that in the energy-saving aspect, LED lamps are no doubt the best choice. A 65W High Pressure Sodium Lamp (HPSL) can be replaced by a 14W LED lamps. A high-efficiency LED head light system can increased the total mileage of an electricity-using car after a charge. Thus whether it is based on saving fuel or on the aesthetics of appearance, LED will be the best choice for buyers. “We are considering a fully development of LED vehicle lighting technology. It is really a emergent and potential market. We plan to start from the external LED lamps.”

 

McKinsey predicted that this technology will continue to develop. “Maybe in the near future our customers can use intelligent LED vehicle lamps. The structure and working principle of LED lamps made all these possible. Most automobile manufacturers may probably start from intelligent head lights, which can sense the specific driving conditions and adjust the light brightness automatically. ”