日期：2012年7月6日

Analysis for low power LED lighting industry

LED lighting technique can be divided into three levels according to the power consumption: low power LED lamps (smaller than or equal to 20W); mid power LED lamps (20W – 50W); high power LED lamps (larger than 50W).  In this article, we will discuss about low power LED lamps.

 In 2010, the selling of global low power LED lamps was around 8.9 billion dollars.

In 2010, the selling of global low power LED lamps was around 8.9 billion dollars. Experts estimated that from 2010 to 2015, the CAGR of low power LED lamps will be 39%. Low power LED lighting industry has a large potential.

 

MR11/16 lamps are low power lamps. Before the emergence of LED Lights, this area was dominated by halogens. A typical design is: 12DC / 24DC after transformers. The equivalent LED lighting technique still need transformers to convert AC to DC. Since they are more vulnerable to the variations of input voltage, transformers used on halogens are not competent. Currently the most commonly used transformer for MR16 LED lamps is high frequency electronic transformer. At present, the small LED market was mainly occupied by these two types of lamps. Both of them have advantages and disadvantages: LEDs have higher light efficiency while halogens are cheaper. 4W LED equivalent to 20W halogen.

 

The biggest challenge for LED MR11/16 lights is lacking of an identical standard, including cover, project, power factor and other electronic parameters. Different low power LED lighting manufacturers may probably have their own standards as a result of immature development. There will be no quick solution for this problem. Manufacturers should recognize the importance of a sustainable industrial development. And government also need to continuously issue support policies.

 

A new solution can embed transformers within LED drivers. As mentioned before, transformers for LED lighting products are much complex than halogens. Typically used solution is non-isolated PFC, which has been removed directly from transformers into drivers. Not only had the entire production process been improved (dramatically reduce cost), but also had the installation been simplified. The new non-isolated PFC drivers are more suitable for small sized PCB used in MR covers. PFC replaced all capacitors with transistors, saving a lot of space. It can meet the requirement of PF and THD only though certain outside components. They have a power factor as much as 80%.

 

Intelligent LED lighting systems in the underground parking lot

Intelligent LED lighting systems using in underground parking lots is a complex combination of advanced digital technique, electronic sensors, wireless technology, signal sampling, central control, LED displays and LED Lights products. It is a brand new intelligent lighting system which can provide sufficient brightness according to the position of carports. The central system will “judge” by itself at what time to switch on lamps. Electronic sensors were installed at some points in advance, covering the enter region. When sensing cars, sensors will trigger adjacent lamps to provide light for them. At the rest of time, these lamps remain in the condition of dormancy. This kind of design can dramatically reduce the energy consumption. Meanwhile, light intensity sensors installed at every carport can automatically adjust lamps for this carport by “judging the nearby brightness”. Within the entire intelligent lighting system, LED technique is just a small but very important part. In order to fully realize the green concept, designers decided to use the most environmental friendly lighting technique at the moment: LED.

 Intelligent LED lighting systems using in underground parking lots is a complex combination of advanced digital technique, electronic sensors, wireless technology, signal sampling, central control, LED displays and LED lighting products.

Intelligent LED lighting systems was composed of four main sections: central control system, data sampling sensor group, guiding system and LED lamps.

 

Central control system used the most advanced ARM9 2440 series, 400MHz frequency, having more than 130 multi-function I/O ports, 24 external interrupt resources and several popular peripheral interfaces.

 

Occupancy sensors, voice-activated sensors, microwave sensors, ultrasonic sensors and ambient illumination sensors constitute the entire data sampling sensor group. These sensors are normally installed on the top of each carport. Among them, ultrasonic sensors play an important role in sensing cars movement.

 

Guiding system is actually a series of instruction set which has been embedded into CPU in advance. After collecting enough information from data sampling sensor group, guiding system will search the nearest vacancy from built-in database and transmit the corresponding information to drivers though broadcast or other indicative marks. Guiding system is a daring design of intelligent LED lighting systems. It has nothing to do with green concept but, to a large extent, realize the complete replacement of labor with computers.

 

LED lamps are controlled by lamp triggers mounted inside of walls. This part is the terminal of the entire intelligent lighting system and also a user interface.

 

Intelligent LED lighting systems were well received after launch. Experts indicated that more and more intelligent LED lighting products applications should be and will be developed and finally into our daily lives.

 

 

sunshine systems led grow lights in LED Tubes

LED fluorescent tubes are the latest product of the led family, but also fluorescent alternatives, constitute mainly of white LED chip module (sunshine systems led grow lights) . The advantages of long life, no flicker, no radiation, energy saving, environmental protection, the advantages of combination of all the fluorescent one.

On the other hand, LED fluorescent tubes  (sunshine systems led grow lights)  installation are very simple, the installation will remove the original fluorescent starterand put LED fluorescent tubes. LED fluorescent energy-saving up to 50% more than the life expectancy of more than 10 times the ordinary lamp, almost maintenance-free. The scope of application: offices, factories, shopping malls, schools, home and other indoor lighting.

sunshine systems led grow lights in LED Tubes

LED fluorescent tube has the advantage of finishing summarized as follows:

1. Green lighting, environmental stresses
Traditional fluorescent lamps contain mercury vapor, if broken mercury vapor will evaporate into the atmosphere. LED fluorescent do not use mercury, and LED products not containing lead, has protective effects on the environment. LED lighting is recognized as the green lighting of the twenty-first century.

2. Efficient conversion
Traditional lamps will produce large amounts of heat, LED lighting is energy all is converted to light, will not cause waste of energy. And file, the clothing will not fade phenomenon.

3. Quiet and comfortable, no noise
LED lighting does not produce noise, the occasion for the use of sophisticated electronic equipment for a good choice. Suitable for the library, the office and the like occasions.

4. Soft light, no flash
Traditional fluorescent lamp use is alternating current, so per second will produce 100-120 times the strobe. LED lamps, AC power directly converted to DC, and will not produce flicker, eye protection.

5 UV, less mosquito
LED lamps do not produce ultraviolet light, it will not be as traditional lamps, there are a lot of mosquitoes around the light source side. The room will become more clean and tidy.

6. Adjustable voltage and a wide range of
Traditional fluorescent lamp is lit by high-voltage rectifier release, can not be lit when the voltage drops. LED lamps  (sunshine systems led grow lights) can be lit within a certain range (80V-245V) voltage, but also adjust the brightness.

7. Longevity, energy-saving and low cost
LED fluorescent lamp power consumption is 10 times below one-third of the traditional fluorescent lamp life is also a traditional fluorescent lamp, the long-term use without the need to replace, reduce labor costs. More suited to the occasion difficult to replace.

8. Sturdy solid, very safe
LED lamp used in epoxy resin rather than glass, more robust solid, and even hit the floor LED will not easily damaged, you can safely use.