Affected by environmental protection and energy saving trends and luminous efficiency and lighting quality, LED low-temperature lighting system can maintain good luminous efficiency at low temperature, and because of its own light directivity, it can be designed under the shelf plate to make the refrigerator The internal illumination is more uniform. In recent years, it has expanded to replace traditional fluorescent tubes and has been applied to the low-temperature lighting system of refrigeration/freezers. In 2008, home appliance manufacturers have introduced household refrigerators using LED preservation technology. At present, Taiwan, including LED packaging manufacturers Yiguang and Guangbao, have launched LED low-temperature lighting products.
LED is used in low-temperature lighting. It started in 2002 with GELCORE and the LRC Lighting Research Institute of the United States to develop a low-temperature lighting system, and the LED low-temperature lighting system is set in the price cabinet of the PriceChopper supermarket. Wal-Mart later invested $13 million in 2006 to bring GELCORE's LED refrigerated lighting systems to more than 500 stores in the United States. As the data shows, the power consumption of these LED refrigerated cabinet lighting systems not only reduces energy consumption by 66% compared with traditional fluorescent tubes, but also saves $2.6 million in electricity bills a year. Wal-Mart has plans to introduce LED low-temperature lighting systems to 6,000 stores worldwide.
Later, in the third quarter of 2007, Mitsubishi Electric introduced LED low-temperature refrigerating/freezers to replace the fluorescent lamps on the display racks to improve the low luminous efficiency of fluorescent lamps at low temperatures. In 2008, home appliance manufacturers have introduced household refrigerators that use LED fresh-keeping refrigeration technology, and the application of LED low-temperature lighting is accelerating.
At present, the global low-temperature lighting market can be divided into two major areas: refrigerators and refrigeration/freezers. In 2006, global refrigerator shipments were 106 million units, and refrigeration/freezer shipments were 58 million units. Among them, commercial refrigerating/freezers are estimated to use 60 HighpowerLEDs per door, and the global demand for commercial refrigerators/freezers is over 3 billion. The domestic refrigerator is estimated to use 5 HighpowerLEDs per backlight, and the global demand is estimated to be 500 million.
Use traditional 1-2 refrigerators with 5-15W incandescent lamps, each unit price is about 1 US dollar, and chilled/freezers need to use 2-4 10-58W fluorescent lamps, each with an average unit price of about 3-10 US dollars. It is estimated that the market for low-temperature lighting, which combines traditional refrigerators and refrigerated/freezers, is about $400 million. Under the advantages of environmental protection, energy saving, uniform illumination, good luminous efficiency at low temperature and power supply efficiency of up to 90%, Taiwan's LED packaging manufacturers, Everlight and Guangbao, have officially launched LED low-temperature lighting products.
Compared with traditional fluorescent lamps, according to the US Department of Energy (USDepartmentofEnergy) survey, the electricity consumption of refrigeration equipment accounts for about 50% of the total electricity consumption of general supermarkets, and about 25% of the electricity consumption of refrigeration equipment. It is consumed in low temperature lighting systems. Since the fluorescent tube is used for refrigerating the light source, the luminous efficiency is deteriorated because the mercury vapor pressure in the tube is low, and only part of the light is irradiated on the surface of the refrigerating object, resulting in uneven illumination of the object and waste of energy.
However, the LED lighting system has a lower luminous efficiency with higher temperature, and the luminous efficiency is good at low temperatures, and the LED has light directivity, and can be designed under the shelf plate to make the illumination in the refrigerator more uniform. Therefore, in recent years, research and development have adopted the LED low-temperature lighting system to replace the low-temperature illumination of traditional fluorescent tubes.
As for the difference between CCFL and LED power supply, CCFL first needs to go through the buck-boost DC/DC converter, it will consume 10% of the power, and then consume 25% of the power through the Inverter. Finally, the power supplied to the Fluorescenttube is only about The remaining 70%. However, LEDs can be powered directly via LEDDriver, allowing the entire transformer circuit to be as efficient as 90%.
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A power cord, line cord, or mains cable is an electrical cable that temporarily connects an appliance to the mains electricity supply via a wall socket or extension cord. The terms are generally used for cables using a power plug to connect to a single-phase alternating current power source at the local line voltage-(generally 100 to 240 volts, depending on the location). The terms power cable, mains lead, flex or kettle lead are also used. A lamp cord (also known as a zip cord) is a light-weight, ungrounded, single-insulated two-wire cord used for small loads such as a table or floor lamp.
Power Cord,Home Appliance Power Cord,Power Cable Cord
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