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The reason why the LED general lighting market has attracted so many peoples attention is as follows: first, it has a large 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 proportion of LED lighting will exceed 10% of the total lighting; thirdly, with incandescent lamps, fluorescent lamps and energy-saving lamps market. The market is basically monopolized by GE, Philips, OSRAM and a few other suppliers. Today, these large lighting suppliers only produce about 10% of the total lighting market. That is to say, the LED general lighting market is not a monopoly market, and everyone has the opportunity to play in it.

Today, however, most LED chip suppliers are in danger of going out, because the low-voltage LED chips they produce today will be increasingly difficult to sell in the LED general lighting market. Why? Because of the emergence of high-voltage LED, high-voltage LED has two obvious competitive advantages over low-voltage LED.

First, under the same output power, the driving current of high-voltage LED is much lower than that of low-voltage LED. For example, high voltage blue-light 1W LED with chip optoelectronics, whose forward voltage drop is as high as 50V, that is to say, it can output 1W power only by 20mA driving current, while the normal forward voltage drop is 3V 1WLED, which needs 350mA driving current to output 1W power, so the power dissipated by high voltage LED with the same output power is much lower than that of low voltage LED, which means that the cost of cooling aluminium shell can be greatly reduced. Lower.

Secondly, high voltage LED can greatly reduce the loss of AC-DC conversion efficiency. Taking 10W output power as an example, if the 1W high voltage LED with a forward voltage drop of 50V is used, the output can be configured in two parallel and four series, and # the forward voltage drop of four series LEDs is 200V. That is to say, it is only necessary to use bridge rectification and 20V reduction from 220V AC of municipal power. But if we use a 1W low-voltage LED with a forward voltage drop of 3V, even if 10 of them are connected in series, the forward voltage drop is no more than 30V, that is to say, it needs to be reduced from 220VAC to 30VDC. We know that the lower the voltage difference between input and output, the higher the conversion efficiency between AC and DC. It can be seen that if high-voltage LED is used, the efficiency of transformer can be greatly improved, thus greatly reducing the power loss during AC-DC conversion. This reduction in heat consumption can further reduce the cost of LED Wall Lights Suppliers heat dissipation housing.

Therefore, if we use high-voltage LED to develop LED general lighting products, the overall power consumption can be greatly reduced, thus greatly reducing the design requirements for heat dissipation housing. If we use thinner and lighter aluminum shell, we can meet the heat dissipation requirements of LED lamps. Because the cost of heat dissipation aluminum shell is one of the main cost components of LED lighting, the effective reduction of the cost of aluminum shell also means that the cost of heat dissipation aluminum shell can be effectively reduced. Effective cost reduction of integrated LED lighting fixtures.

It can be seen that high-voltage LED can effectively reduce the cost and weight of LED lighting, but its more important significance is to significantly reduce the design requirements of heat dissipation system, thus effectively clearing the biggest technical barriers for LED lighting to enter the indoor lighting market. Therefore, high-voltage LED will dominate the future LED general lighting market.