LED lighting product prices affect several key factors:
1, the domestic enterprises without core technology
LED upstream industry lies in the vast majority of core patents in the hands of foreigners , have not mastered the core technology of our country , although we LED application products manufacturing capacity in the world accounted for 50 % share to 50% , but it does at least part of the profits of a ring .
The main cost of LED lighting in LED chip , as long as chip prices down , LED lumen unit can be reduced considerably with energy-saving lamps stage . Because the LED chip with the process , the number grew larger wafers using the production process, will continue to reduce costs, lower rate of 20% annually in recent years , LED chip prices factor in enhancing the efficiency of light you want to reduce the price also included , the same price to buy a better product , so the LED chip is still a great price cut.
2, LED application products Cooling difficult
Cooling to maintain the 5% cost , effective cooling design is very simple , always has two directions: First , LED chip and the heat sink element outside the path as short as possible , the shorter the better thermal design you ; Second , heat resistance , is to have enough heat spread path must also have sufficient " cooling path ." this is the main part of the cost structure , the structural design in the luminaire about 20% for cooling costs not much. The biggest problem now is how to do more creative , more reasonable structure design .
3, LED power supply applications
Power is led lighting weakest link , restricting the development of LED lighting . Design now account for about 20% LED lighting costs, some high , as the technology development of power in about 5-10 % of the most reasonable.
