LED not yet ripened to be given hope

LED as a new type of light source, energy saving, long life, clean by all the attention. In particular, China Olympics, successful use of a large number of LED technology, the effect is extraordinary, local governments have to support the LED industry, the establishment of a large number of LED demonstration unit at the same time, a large number of enterprises involved in the field, and even do the battery started the car fame BYD The company again raised the slogan LED first in the world. LEDs are really into the boom?

    Which lighting such as LED not yet mature to be high hopes, but the slow development of LED products also make too conceptual, the lack of customer base. Even now the government is trying to support the growth of the LED as a breakthrough LED street lamp, LED either civil or commercial customer base is still not formed. Then there is a danger signal: manufacturers have to reduce costs as the top priority many companies, the LED current bigger to reduce the wick to maintain the brightness of the same number in order to save costs, or compression PCB area, or to reduce Safety devices and other methods, of course, we want to believe that the inherent advantages of Chinese companies in the compression of the cost. Industry, the LED in case there are no market to enter price shuffling situation, which is detrimental to the industry as a whole.

    Now the LED industry in order to open the civilian market, multi-LED lamps designed to be replaceable, and that directly replace the existing lighting. But in the process of development in the lighting, in addition to the compact lamps directly replace incandescent, little direct replacement mode, such as T8, Ceiling is almost fluorescent, LED Why must we go to replace the road?

    The replacement lamp of this design approach have any disadvantages:

    1. Heat

    Poor heat of the LED is well known, will inevitably bring the wick life. The design of the existing LED lights tend to heat difficult to meet the requirements in the field of a heat dissipation is very demanding, but with very poor passive cooling, and is air-cooled, or even a closed air-cooled. General, the internal temperature of these lamps will have seventy to eighty degrees. And if we take into account the heat, weight problems; take into account the weight, heat dissipation is difficult to guarantee that the existing design dilemma of choice.

    2 - Life

    LED wick life was index decreased; electrolytic capacitor temperature is increased by ten degrees lower life expectancy in half; the MOS temperature, resistance increases, loss increases, the temperature will rise (constant current mode) with increasing temperature, and ultimately burned . LED life span of the bottlenecks in the system driver board, often LED wick is not damaged, the system drive has been broken. 3 Weight

    The screw interface lamps, fluorescent light weight of only one of the LED lamps, due to the heat sink, the weight of the fluorescent lamp holder who can be negligible, but the weight of the LED lamp holder is a very serious test.

    4 Price

    Temperature of 70 degrees, the LED driver board may be a life of only five years (home), far from reaching 10 years of LED wick 'concept'. So much more cost effective compared to the same brightness of the fluorescent, even if the fluorescent only 1 year of life, 1W1 fluorescent is much more than 1W10 $ LED. Damage to the LED lamps are often the wick is not bad, have the entire lamp replacement. Calculate the tenth driver board have to discard the remaining nine tenths of the lamp (wick and the heat sink accounted for most of the cost of the entire lamp), if each vendor did not do a good job recycling customers do not like the product.

    (5) of light

    Light perception, the human eye LED light visual sense - the visual experience.

    LED as a lighting product, the visual sense is very important. The LED advantage is that the spectrum of pure, but this is a very serious disadvantage in the visual above. The human eye is not a long time to observe a single chromatographic light, especially in the developmental stages of infants and children. Although there are solutions, but there are still many that need to be resolved.
non return valve, metal to metal ball valve, stainless ball valve

    The LED market, relying solely on the replacement, the imitation is not able to go. If we had fluorescent only thought to completely replace the incandescent lamp, the style of the U tube, T8 tube, I believe that the fluorescent lamp still is struggling to survive. LED does not depend on the costs and survival, requires a company to highlight the advantages of the new LED products, the company must understand the characteristics of LED and customer needs, few such companies. State of the existing blind competition, many enterprises swarm, all the same architecture, same look, LED lamps in the end how to design, but few people truly want to consider this point.