Why are other industries and overseas companies so active in the field of LED lighting, why is the market so active? This is because the luminous efficiency and price that have been recognized as the subject of LED lighting have been improved, and LED lighting that exceeds fluorescent lamps in all aspects is about to come out. the result of. First, the luminous efficiency of LED chips is increasing year by year. The development blueprint released by the Japan LED Lighting Promotion Association (JLED S) in 2008 predicts that the luminous efficiency of white high-efficiency LEDs will reach 120 lm/W in 2009 and will exceed 150 lm/W by 2015. However, at the time, some manufacturers said that "150 lm/W products can be put on the market in the next 2-3 years" (Fang Tian Fan Xiu, vice president of Japan business of Philips Electronics Japan), "has reached 120~130 lm/W, and A product of 150 lm/W has also been realized" (Nikko Denki, deputy director of Nichia Chemical Industry), and the efficiency improvement rate in the past year or two has exceeded expectations. In general, LED lighting has the effects of power loss and temperature rise. Therefore, the luminous efficiency (combined efficiency) of the entire lighting fixture is mostly 3 to 50% lower than that of the LED chip, and is only about 50 to 70 lm/W. However, it is not uncommon to find products with integrated efficiencies of more than 80 lm/W. It is expected that the efficiency of inverter fluorescent lamps (90 lm/W~100 lm/W) will be exceeded before and after 2012, reaching or exceeding the level of fluorescent energy-saving lamps. In addition, the price that is considered another subject of LED lighting is also steadily declining. From the perspective of comprehensive costs (lighting of lamps and electricity), it is sometimes better than fluorescent lamps. Taking a bulb-type LED illumination equivalent to a 60W incandescent bulb as an example, the total cost is about 10,000 yen within a life of 40,000 hours. When the incandescent bulb with a life of 1000 hours is used for 40,000 hours, the overall cost is more than 50,000 yen, and even the bulb-type fluorescent lamp has to reach 16,000 yen. If the cumulative lighting time exceeds approximately 14,000 hours, the overall cost of bulb-type LED lighting is less expensive than bulb-type fluorescent lamps. Assuming that this 14,000 hours is used for 10 hours a day, in the long run, LED lighting is more advantageous. JLEDS forecasts the price of LED chips, and it is expected that the cost per unit of brightness will be lower than 1 yen/lm, which is considered to be the popular threshold before and after 2012. However, this goal is also likely to be achieved ahead of schedule. "It is decreasing at a rate of more than 20% per year. It is estimated that it will continue to fall for a long time" (Tanzaki of Nichia Chemical Industry). The production and sales of the incandescent lamp are stopped, the realization of the luminous efficiency of the LED exceeding the fluorescent lamp, and the popularization price of 1 yen/lm are achieved. From these three points, the popularity of LED lighting will be accelerated around 2012. Lighting manufacturers and new players have expanded their LED lighting business after three years of focused demand. The 4G MiFi and 5G MiFi are portable Wireless Router devices that convert 4G or 5G network signals into Wi-Fi signals, making it easy for users to connect to the Internet from anywhere. The following is a detailed description of the advantages of 4G MiFi and 5G MiFi. 4G MIFI oem,best 4G MIFI,cheap 4G MIFI,4G MIFI lg Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommiot.com
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