LED low temperature lighting system to replace the traditional fluorescent tube

By the trend of environmental protection and energy saving and emission efficiency and lighting quality influence factors such as attention, because the LED low temperature lighting system can maintain a good luminous efficiency at low temperature, and by itself has light directivity, and design in the bottom of the rack plate, the illumination in the cabinet is more uniform, in recent years has expanded to replace the traditional fluorescent lamp. Is applied to the refrigerator / freezer temperature lighting system potential, the existing appliance manufacturers in 2008 launched a household refrigerator preservation technology by LED. At present, Taiwan including LED packaging Dachang billion light and Lite branch, have launched LED lighting products at low temperature.

LED used in low temperature lighting, began in 2002 with the United States LRC GELCORE Institute of lighting research and development of low temperature lighting system, and the LED low temperature lighting system is set in Price Chopper supermarket freezer. Later, Wal-Mart invested $13 million in 2006, will be located in the United States in more than and 500 cities to introduce GELCORE's LED refrigeration lighting system. Because of the data show that these LED refrigerator lighting system power consumption, not only compared to the traditional fluorescent lamp reduces energy consumption by 66%, a year to save more than $2 million 600 thousand of electricity bills. At present, Wal-Mart has plans to fully introduce the world's 6000 cities LED low temperature lighting system.

After the introduction of the MITSUBISHI motor in the third quarter of 2007, LED low temperature refrigeration / freezer, replace the fluorescent lamp on the display frame to improve the efficiency of fluorescent lamps at low temperatures low. 2008 home appliance manufacturers have introduced the use of LED cold preservation technology of household refrigerators, LED low temperature lighting applications are accelerating popularity.

At present, the global low temperature lighting market can be divided into two areas of refrigerator, refrigerator / freezer, in 2006 the global refrigerator shipments of 106 million units, refrigerated / frozen warehouse shipments of up to 58 million units. Commercial refrigeration / freezer in the world in order to predict the beginning of each 60 High power LED estimates, the global commercial refrigeration / freezer LED demand up to more than 3 billion. The domestic refrigerator with each backlight refrigerator estimates using 5 High power LED estimates, the global demand for up to 500 million.

The use of incandescent lamps 1-2 5-15W in the traditional refrigerator, each priced at around $1, refrigerated freezer is required to use 2-4 / 10-58W fluorescence lamps, the average price of each about $3-10 between the estimated total traditional refrigerator and refrigeration / freezer temperature of the lighting market size of about US $400 million. With environmental protection and energy saving, uniform illumination, low luminous efficiency and good power efficiency as high as 90% advantages in LED, including the LED package at present Taiwan Dachang billion light and Lite, has officially launched the LED lighting products at low temperature.

Compared with the traditional fluorescent lamp, according to the U.S. Department of energy (U.S. Department of Energy) survey, the electricity consumption of refrigeration equipment accounted for about 50% of electricity consumption in the whole general supermarkets, and the electricity consumption of refrigeration equipment, there are about 25% is consumed in low temperature lighting system. Because the fluorescent lamp used for cold light source, because mercury vapor lamp in the low pressure and makes the efficiency becomes poor, only some light on the cold surface, causing reducinglow uneven illumination, the waste of energy.

While the LED lighting system with the higher temperature, the luminous efficiency is reduced, the luminous efficiency in the low temperature is good, and the LED has light directivity, and can be designed in the bottom of the frame, so that the refrigerator is more uniform illumination. Therefore, in recent years, the research and development of the use of LED low temperature lighting system to replace the traditional fluorescent tube lighting.

As for the difference between the CCFL and the LED power supply, the first to go through CCFL DC/DC buck-boost converter will waste 10% electricity through Inverter and wasted 25% of electric energy, and finally to the Fluorescent tube power only about 70%. But LED just LED Driver will be able to direct power supply, so that the efficiency of the entire transformer circuit up to 90%.

From the perspective of the growth of the export country, China's refrigerator export growth rate of up to 40%. At present, China's refrigerator production base in Beijing, Tianjin, Anhui, Zhejiang, Jiangsu, Guangdong, Shandong and other more than ten regions, exports are concentrated in Guangdong and Qingdao. In 2007, there were 2473 export manufacturers in China, with a total export value of over $10 million in a total of 47. The Haier group in China's export refrigerator manufacturer first, followed by Taizhou and Suzhou Samsung Electronics, the annual export volume in more than 1 million 200 thousand sets.

Source: China Semiconductor Lighting Network