low voltage LED will fade out the future of LED general lighting market

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LED general lighting market today is tempt everyone s appetite, has attracted so much attention, because no more than the following three aspects, first, the market is large enough, the Epistar deputy general man ager of Fan Jin Yong said: LED general lighting market will be 5-10 times the LED TV market today. "Second, the end of this year or early next year, the proportion of the total lighting LED general lighting market will come to the first year, that is LED lighting over 10%.

The Epistar deputy general manager of Fan Yong said: "I think next year will it be possible to see the LED general lighting market since the sense that there are quantities of LED lighting needs." Third, incandescent, fluorescent and energy-saving lamp market is the basic by GE, Philips and OSRAM few suppliers monopoly, today these big lamps manufactured LED lighting accounts for only about 10 percent of the total lighting market, ie, LED general lighting market is not a monopoly market, we Du also have the opportunity to play on the inside.

However, today most of the led underground light chip suppliers fac e the risk of an out, because the low-voltage LED chips produced today will be increasingly difficult to sell into the LED general lighting market. Why? Because the high-voltage LED, high-voltage LED compared to the low voltage LED has two clear competitive advantages: First, in the same output power, high voltage LED drive current significantly lower than the low-voltage LED. Such as be as an example in order to the of the high-pressure Blu-ray of of the Epistar 1W LED, the it of the forward voltage drop is as high as 50V, also that is, it to only need to the 20mA drive current on the can to output the 1W power, while the ordinary forward voltage drop for the the 3V the 1W LED of, need to the 350mA drive current to output 1W power, the power dissipation of the same high-voltage LED output power at work is far lower than the low-voltage LED, which means that the cost of the heat dissipating aluminum enclosure can be greatly reduced.

Second, high-voltage LEDs can s ignificantly reduce the AC-DC conversion efficiency losses. 10W output power, for example, if the forward voltage drop of 50V, 1W high-voltage LED output can take two and four-string configuration, four series-connected LED s forward voltage drop is 200V, that is just from the City power 220V alternating current (AC) bridge rectifier and drop 20V on it. But if we use the forward voltage drop of 3V, 1W low voltage LED, even if the forward voltage drop of 10 strung together, but 30V, that is from 220V AC mains step-down to 30VDC. We know that the lower the pressure difference of the input and output AC to DC conversion efficiency is higher, visible, such as high pressure LED, the efficiency of the transformer can be greatly improved, thereby significantly reducing the power loss when the AC-DC converters, which a heat consumption to reduce but also to further reduce the cost of the cooling shell.

Therefore, if the high-voltage LED to develop LED general lighting pro ducts, the overall power consumption can be greatly reduced, thereby significantly reducing the design requirements of the thermal shell, such as we can use thinner, lighter aluminum casing can meet the cooling needs of the LED lamps an integral part of the cost of aluminum casing to reduce also means that effectively reduce the overall LED lighting costs due to the cost of the heat dissipating aluminum enclosure is the major cost of LED led lights for homes.