A core problem: Cooling
I studied a high-power light source packaging manufacturers to provide integrated module light source efficiency issues, 20w-200w modules of different power chips used are the same, but the 20W light module efficiency of up to 94lm / w (hot luminous efficiency), 50W module light efficiency 82lm / w (hot), 100W light module efficiency of up to 70lm / w (thermo-optical effect) 200W modular light efficiency up to 57lm / w (hot), This is actually the heat at work, I tested the same module, in a good heat dissipation premise, 20W light module efficiency of up to 105lm / w (luminescence efficiency), that is, if the words of a very good thermal design , then the light 200W module efficiency of up to 105lm / w, then made into Class B energy efficiency (90lm / w) of the cost of LED lighting should be in 12RMB / w or less, how much money you want to sell a tile, to see the degree of users happy. What kind of technology used to achieve the desired cooling effect so, how to make led lights at home I suggest you go to look carefully, but the cost is not high, to be meaningful, then the energy
Second: the most intractable problems: miniaturization
As we all know, a few years ago Statistics data show that the total number of street lights nationwide Dayong month 24 million, this figure is now 30 million, roughly the number of lights and tunnel lights rather because 1km tunnel average number of lamps roughly equivalent to an average of 10km road number of lights, this figure does not matter whether the Right, I want to say yes, so many lights are replaced with LED lamps, light aluminum can not afford this one is an astronomical figure, just press a Light 10KG calculations, so long is about 60 million tons, why can not i run such high pressure sodium twisting down, the LED lights put on go? This is a small problem, provided that: even better heat dissipation, energy saving targets can not fall, how you give it a try.
3 is not a problem of the problem: drive power how to make led lights at home
Drive power from the development perspective, efficiency and reliability have been quite good, why is it as a problem. Yes, its price is a problem. From now on the market power look, better performance, about the price of 3 yuan / w, of course, there are 2-3 million / w of, the price is about the price of light 1/2 is weak, the LED lighting become the second largest cost factor, if you use non-isolated house, the cost is down, but they could not pass safety regulations, we can not go to their own R & D and production of power, right? This is too embarrassing. Has introduced an AC-driven LED light source, a friend told me that the life of this light source is not, it is best not to consider. I have not tested this LED light source, so we can not make improper comments.
4 additional problem: continuous dimming
how to make led lights at home is a very easy-going guy, you can empty, you can also insisted on driving the current size is not critical, to eat as much current how much light on the hair, which longevity of the LED dimming control requirements. This feature adds is good, can make people more lazy, energy indicators can also improve a little, but adds this feature, the system’s reliability declined, increased cost, the owners have on the one hand shouting lamps prices too high, on the other hand have to increase the function of automatic continuous dimming, really hard life, people do LED harder, do LED good difficult.
