The reason why the LED general-purpose lighting market pays attention to everyone's appetite today attracts so many people's attention. The reasons are nothing more than the following three aspects. First, its market is large enough. Fan Jintao, vice general manager of Epistar, said: "The LED general lighting market will be 5-10 times that of today's LED TV market." Secondly, at the end of this year or early next year, the first year of the LED general lighting market will come, that is, the ratio of LED lighting fixtures to the total number of lighting fixtures will be More than 10%.
Fan Jinyu, general manager of Epistar’s optoelectronics, said: “I think it will be possible to see the LED general-purpose lighting market starting next year, that is, the demand for batch LED lighting fixtures.†Third, the market for incandescent lamps, fluorescent lamps and energy-saving lamps is basically It is monopolized by a few suppliers such as GE, Philips, and OSRAM. Today, the LED lighting fixtures produced by these big lighting suppliers only account for about 10% of the total lighting market. That is, the LED general lighting market is not yet a monopoly market. There are still opportunities to play inside.
However, most LED chip suppliers today are in danger of going out of business because the low-voltage LED chips they produce today will be increasingly difficult to sell into the LED general lighting market. why? Since high-voltage LEDs emerge, high-voltage LEDs have two distinct competitive advantages over low-voltage LEDs: First, at the same output power, high-voltage LEDs require much lower drive current than low-voltage LEDs. For example, Epistar's high-voltage, blue light 1W LED has a forward voltage drop of up to 50V, which means that it can output 1W with only 20mA of drive current, while a 1W LED with a normal forward voltage drop of 3V requires 350mA. The drive current can only output 1W power, so the high-power LED with the same output power dissipates much less power during operation than the low-voltage LED, which means that the cost of the heat-dissipation aluminum housing can be greatly reduced.
Second, high-voltage LEDs can significantly reduce the loss of AC-DC conversion efficiency. Taking 10W output power as an example, if a 1W high voltage LED with a forward voltage drop of 50V is used, the output can be configured with 2 and 4 strings, and the forward voltage drop of 4 series LEDs is 200V, which means that only from the city Electric 220V alternating current (AC) using bridge rectifier and drop 20V on it. However, if we use a 1W low-voltage LED with a forward voltage drop of 3V, even if the forward voltage drop of 10 strings is not more than 30V, it means that we need to step down from 220V AC to 30VDC. We know that the lower the differential pressure between input and output, the higher the conversion efficiency from AC to DC. It can be seen that if a high voltage LED is used, the efficiency of the transformer can be greatly improved, which can greatly reduce the power loss during AC-DC conversion. A reduction in heat consumption can further reduce the cost of the heat sink.
Therefore, if high-voltage LEDs are used to develop LED general lighting products, the overall power consumption can be greatly reduced, thereby greatly reducing the design requirements for heat-dissipating housings. For example, we can meet the heat dissipation requirements of LED lamps with a thinner, lighter aluminum housing. Since the cost of the heat-dissipating aluminum housing is one of the major cost components of the LED lighting, the cost reduction of the aluminum housing also means that the overall cost of the LED lighting is effectively reduced.
It can be seen that high-voltage LEDs can bring about an effective reduction in the cost and weight of LED lighting fixtures, but its more important significance is to significantly reduce the design requirements of the cooling system, which effectively clears the largest LED lighting fixtures into the indoor lighting market. Technical obstacles. Therefore, high-voltage LEDs will dominate the future of the LED general lighting market.
Fan Jinyi, general manager of Epistar, said: “In the second half of 2010, leading international LED suppliers such as Cree, Nichia and Lumileds announced the development of high-voltage LEDs, and we have successfully developed 50V blue 1W LEDs in early 2010. 35V red 0.7W LED."
On the last day of 2010, Epistar announced that its research and development center (EPISTAR LAB) succeeded in developing high-voltage technology after succeeding in raising the efficiency of cold-white LED dies to 162 lumens/watt with high-voltage technology last month. A red LED with an efficiency of 174 lm/W (at a wavelength of 610 nm) and a warm white LED in series of four 50 V high voltage blue 1 W LEDs and two 35 V high voltage red 0.7 W LEDs (color temperature approx. 2800 K ) The efficiency has also been increased to 170 lumens/watt (88 for color rendering).
Epistar believes that high-voltage DC integrated array-type LED die can meet the needs of environmental protection such as energy saving and efficiency improvement, and will become the mainstream of general-purpose lighting applications in the future. Compared with traditional LEDs, due to advanced and stable high-voltage chip designs, high-voltage LED die can exhibit low energy consumption and high efficiency. With flexible voltage and current adjustments and simplified LED package and drive line design, the overall light output efficiency is also improved.
Jingyuan Optoelectronics is currently the most competitive LED crystal supplier in Taiwan. Last year, the sales amount of LED chips produced by Jingdian Electronics Co., Ltd. accounted for more than 40% of the total LED chip sales in Taiwan. The sales ratio in China is about 20-25%. Epistar now offers the brightest red LED in the world, accounting for 50% of the total global red LED market share.
Fan Jinxi said: "In 2009, more than half of LED TVs from South Korea and South Korea were from Jingdian. Last year, about half of Jingdian LED's production capacity was mainly supplied to the LED TV market. We will also be working with system vendors in the upcoming larger LED general lighting market. Promote it together."
Although Nichia and Cree's LED products still have some advantages in luminous efficiency, Fan Jinmin pointed out: "We have closer to their performance in this area, and we have a price advantage."
Jingyuan Optoelectronics' current research and development plan is even more radical than the US Department of Energy (DOE) plan. Fan Jinxi revealed that the brightness of the 2700K LED will increase to 150lm per watt next year, and the luminous flux of the 5700K white LED can be obtained for one US dollar. It will also increase to 500 lm, which means that the luminous flux that the user gets for each dollar spent from the LED will exceed the incandescent lamp for the first time.
Fan Jinyu, general manager of Epistar’s optoelectronics, said: “I think it will be possible to see the LED general-purpose lighting market starting next year, that is, the demand for batch LED lighting fixtures.†Third, the market for incandescent lamps, fluorescent lamps and energy-saving lamps is basically It is monopolized by a few suppliers such as GE, Philips, and OSRAM. Today, the LED lighting fixtures produced by these big lighting suppliers only account for about 10% of the total lighting market. That is, the LED general lighting market is not yet a monopoly market. There are still opportunities to play inside.
However, most LED chip suppliers today are in danger of going out of business because the low-voltage LED chips they produce today will be increasingly difficult to sell into the LED general lighting market. why? Since high-voltage LEDs emerge, high-voltage LEDs have two distinct competitive advantages over low-voltage LEDs: First, at the same output power, high-voltage LEDs require much lower drive current than low-voltage LEDs. For example, Epistar's high-voltage, blue light 1W LED has a forward voltage drop of up to 50V, which means that it can output 1W with only 20mA of drive current, while a 1W LED with a normal forward voltage drop of 3V requires 350mA. The drive current can only output 1W power, so the high-power LED with the same output power dissipates much less power during operation than the low-voltage LED, which means that the cost of the heat-dissipation aluminum housing can be greatly reduced.
Second, high-voltage LEDs can significantly reduce the loss of AC-DC conversion efficiency. Taking 10W output power as an example, if a 1W high voltage LED with a forward voltage drop of 50V is used, the output can be configured with 2 and 4 strings, and the forward voltage drop of 4 series LEDs is 200V, which means that only from the city Electric 220V alternating current (AC) using bridge rectifier and drop 20V on it. However, if we use a 1W low-voltage LED with a forward voltage drop of 3V, even if the forward voltage drop of 10 strings is not more than 30V, it means that we need to step down from 220V AC to 30VDC. We know that the lower the differential pressure between input and output, the higher the conversion efficiency from AC to DC. It can be seen that if a high voltage LED is used, the efficiency of the transformer can be greatly improved, which can greatly reduce the power loss during AC-DC conversion. A reduction in heat consumption can further reduce the cost of the heat sink.
Therefore, if high-voltage LEDs are used to develop LED general lighting products, the overall power consumption can be greatly reduced, thereby greatly reducing the design requirements for heat-dissipating housings. For example, we can meet the heat dissipation requirements of LED lamps with a thinner, lighter aluminum housing. Since the cost of the heat-dissipating aluminum housing is one of the major cost components of the LED lighting, the cost reduction of the aluminum housing also means that the overall cost of the LED lighting is effectively reduced.
It can be seen that high-voltage LEDs can bring about an effective reduction in the cost and weight of LED lighting fixtures, but its more important significance is to significantly reduce the design requirements of the cooling system, which effectively clears the largest LED lighting fixtures into the indoor lighting market. Technical obstacles. Therefore, high-voltage LEDs will dominate the future of the LED general lighting market.
Fan Jinyi, general manager of Epistar, said: “In the second half of 2010, leading international LED suppliers such as Cree, Nichia and Lumileds announced the development of high-voltage LEDs, and we have successfully developed 50V blue 1W LEDs in early 2010. 35V red 0.7W LED."
On the last day of 2010, Epistar announced that its research and development center (EPISTAR LAB) succeeded in developing high-voltage technology after succeeding in raising the efficiency of cold-white LED dies to 162 lumens/watt with high-voltage technology last month. A red LED with an efficiency of 174 lm/W (at a wavelength of 610 nm) and a warm white LED in series of four 50 V high voltage blue 1 W LEDs and two 35 V high voltage red 0.7 W LEDs (color temperature approx. 2800 K ) The efficiency has also been increased to 170 lumens/watt (88 for color rendering).
Epistar believes that high-voltage DC integrated array-type LED die can meet the needs of environmental protection such as energy saving and efficiency improvement, and will become the mainstream of general-purpose lighting applications in the future. Compared with traditional LEDs, due to advanced and stable high-voltage chip designs, high-voltage LED die can exhibit low energy consumption and high efficiency. With flexible voltage and current adjustments and simplified LED package and drive line design, the overall light output efficiency is also improved.
Jingyuan Optoelectronics is currently the most competitive LED crystal supplier in Taiwan. Last year, the sales amount of LED chips produced by Jingdian Electronics Co., Ltd. accounted for more than 40% of the total LED chip sales in Taiwan. The sales ratio in China is about 20-25%. Epistar now offers the brightest red LED in the world, accounting for 50% of the total global red LED market share.
Fan Jinxi said: "In 2009, more than half of LED TVs from South Korea and South Korea were from Jingdian. Last year, about half of Jingdian LED's production capacity was mainly supplied to the LED TV market. We will also be working with system vendors in the upcoming larger LED general lighting market. Promote it together."
Although Nichia and Cree's LED products still have some advantages in luminous efficiency, Fan Jinmin pointed out: "We have closer to their performance in this area, and we have a price advantage."
Jingyuan Optoelectronics' current research and development plan is even more radical than the US Department of Energy (DOE) plan. Fan Jinxi revealed that the brightness of the 2700K LED will increase to 150lm per watt next year, and the luminous flux of the 5700K white LED can be obtained for one US dollar. It will also increase to 500 lm, which means that the luminous flux that the user gets for each dollar spent from the LED will exceed the incandescent lamp for the first time.
Guangzhou Lufeng Electronic Technology Co. , Ltd. , https://www.lufengelectronics.com