LED is now replacing the traditional lighting industry is the wrong direction

LED as a new type of light source, energy saving, long life, no pollution and concern. Especially Chinese Olympic Games successfully used a large number of LED technology, the effect is remarkable, the local governments have to support the LED industry, built a demonstration unit, a large number of LED at the same time, a large number of enterprises are also involved in the field, even the car battery started, famous BYD company put forward the slogan of the world's first LED again. LED really entered the period of prosperity?

I personally think that this is just a direction of unknown war period.

In human history, from which no lighting equipment such as LED is not mature was high hopes, but the slow development, also make LED products too conceptual and lack of customer base. Even now the government is trying to support the growth of the LED street lamp as a breakthrough, but LED is still not formed for both civil and commercial customer base, LED. At this time there is a dangerous signal: LED manufacturers have compressed costs as a top priority! Many companies will expand to the current LED constant in maintaining brightness to reduce the number of wick to save costs, or PCB compression area, or reduce safety devices, of course, we have to believe that the inherent advantages of Companies in Chinese compression in terms of cost. Don't say the effects of product safety, industry group, LED entered the price reshuffle situation in the market is not the case, which is detrimental to the entire industry, the bulk of the funds into the decline will aggravate the small and medium sized enterprises.

This is a dangerous situation, technology development on the one hand, LED will stagnate or even degradation, on the other hand, the cost of compression, or that much attention costs to ensure that the final product quality, will a great extent cannot show the advantage of LED. So I think this is bold, LED industry development in the wrong direction.

Now LED industry in order to open the civilian market, is designed to replace LED lamps, which directly replace existing lamps. But in the process of development of lamps, in addition to the compact tube directly replace incandescent lamps, few direct replacement models, such as T8, ceiling lamps is almost a fluorescent lamp and chandelier is still patent, tungsten lamp of the world, why LED must go replace the road?

To replace the existing lighting the way what are the disadvantages?

1 radiation

LED heat resistance is poor is evident to anyone, will bring the problem of the service life of the wick. The existing design of the LED lamp is often difficult to meet the requirements of heat dissipation, in a very demanding field of heat dissipation, but the use of very poor passive heat dissipation, and mostly air-cooled, and even closed air cooling. Like some lamps between the drive plate and the aluminum radiator to add plastic casing to increase the reliability of the insulation, but also need to heat the silica gel to improve heat dissipation. The T8 lamp tube is closed, wick can only rely on air convection heat transfer to the back of the tube on the aluminum tube for heat dissipation. In general, the internal temperature of the lamp will be seventy or eighty degrees. And if you take into account the heat, weight is a problem; take into account the weight, heat is difficult to ensure that this is a dilemma in the existing design options, there is no feasible standard.

2 life

LED lamp life with increasing temperature decrease exponentially; electrolytic capacitor temperature rise every ten degrees lower half life; MOS temperature increased, the increase of the internal resistance, loss increase, temperature will rise (constant current mode), eventually burn. Of course, the domestic manufacturers did not give a specific LED lamp life, publicity time just mentioned LED wick life one hundred thousand hours, but the life bottleneck of LED driver board in the system, often LED wick is not damaged, driving system is destroyed.

Also LED attenuation is very serious, so the life of lamps should be considered in visual perception, after long time is reduced to the lamp brightness visual feel dark, can think of life, the customer will consider replacing the lamp, the life of manufacturers are not give out (or not this is very important, but also). Again speaking, LED home lighting most of the existing volume restriction, protection is difficult to do well in the voltage fluctuations, the interference area, the design of low power current is a test.

And most importantly, the life of LED and the company's life span is proportional to the LED lamp if publicity for 10 years 2 years on the bad, and half a year ago the company has put up the shutters, whether the user will take the risk?

3 weight

The lamp screw interface, one of several fluorescent lamps weighs only LED lamps, due to the absence of the heat sink, the weight of the lamp holder for fluorescent lamp is negligible, but the weight of LED is a serious challenge to the holder, especially the screw interface LED lamp 7.8W the weight is very dangerous, this point and what businesses consider?

Price 4

General LED driver board at a temperature of 70 degrees may be only 5 years of life (home), far from the concept of LED wick 10 years "". Therefore, compared to the same brightness of the fluorescent lamp, even if the fluorescent lamp is only 1 years of life, 1W1 yuan fluorescent lamp is much more cost-effective than 1W10 yuan LED. In particular, the LED lamp is often damaged wick is not bad, but the whole lamp replacement. Because 1/10 of the driver board is to throw away the remaining 9/10 of the lamp (wick and heat sink accounted for the vast majority of the entire lamp