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HomeNewsDeson stage light Teach you how to buy L...

Deson stage light Teach you how to buy LED Waterproof Par

Made of waterproof LED lights now mostly dominated by 54, the most important when it comes to waterproof light than its stability. However, there are several ways to do waterproof lights to note:


First, of course, bear the brunt of the switching power supply. Formal practice is to use a power supply with pfc, one very important reason waterproof lights are often more than a dozen series together. In this case the power supply will expand mutual interference may directly affect the signal, according to flashing lights occasionally chaotic phenomena. Of course, you can use the software to handle it, but can not be completely eliminated. Specifically how to deal with and I can discuss it in detail. And with pfc switching power supply is generally more efficient than opening without high. So the prices are more expensive, such as a 150W switching power supply without pfc of 200 then take a pfc's going to to 300 the. However, some manufacturers in order to maximize profits certainly do not take account of these.


Second, is the lamp beads choice. Because the domestic LED price factors used by people is still relatively small. Usually only large companies use, but with the cost of production (mainly led lamp beads price) decline is also not far from the popularity. General domestic production lamp beads in my own understanding seems to belong to the best quality because of the Tien-hsin of the (and some I do not know), like there Addison Taiwan, the United States, Cree (stage lights is still relatively small), Osram osram and Korea semiconductors. This is the most important impact of a lamp cost (over 50%) luminous efficiency and lifetime of the most important aspects. A light-emitting good light beads select at least occupy more than 70%. Found that many domestic customers to buy other lights just never regardless of price. (Currently called Tianhong chip LED I know the price of 3 yuan 3W minimum), and if you do not know your price pressure is lower in fact, the more you lose, because a good lamp beads and beads because of poor light the said several times or even ten times the difference between the price of cottage version. Low luminous efficacy of the lamp beads Biyidisen Tim Xin about a quarter, half Korean Addison lower than one third (get yourself tested, there are different is not surprising). Many customers will ask me what a good price that I must say, the higher the better, does not it mainly depends on your own needs, if you just hit 15 meters that I told you Tim Xin enough, if you hit 20 Mi Aidi Sen's enough, you hit 30 meters that use like Korea and a half. If you want to make a plane down that I do not know what the better. Whatever lamp beads selected according to their actual conditions there price ah. You lit a lamp and then hit the range or where you hanging lamp than two dozen, but I scope it. You can not take the led when the laser light hit it?


Third, the process of it. Manufacturers have their own SMT placement machine lamp beads are used reflow ah, why do not say here comes a small plant will not do, a small plant equipment is certainly generally do not have these friends (but outside the processing). A lot of people do not go to outward processing in there after all prices. They are led smear below the cooling gel, such short-term use is ok, but it led a lot of heat will give you the silicone to dry up. Plus aluminum plate contact and do not belong to the kind of metal welded over direct heat derived go but through the cooling gel this medium is relatively slow due to the thermal conductivity so these manufacturers led by a half a year the question came often dead lights, and other family light a large portion of a lower than brightness. led light attenuation and thermal direct relationship with the ah, this must pay attention.


Fourth, the choice of the lens. LED lamp beads of different manufacturers generally use a different lens, and light angle about it. There is no detailed study. Anyway, manufacturers have recommended, but not that it necessarily the best recommended, take a look at your own illumination table slowly try ah. Blending what should try. Why do it led some manufacturers to play out very well-proportioned, a look at the outside of the two circles is that some manufacturers, in the middle a little dark here a little brighter there, this is what they do not understand is called "ism", brought on by the . Some people say a very simple thing brought over LED brightness on the line Well, you have to give light on the 1A current after you give me half a year you buy one. Standard 700 ~ 750ma This is the practice of manufacturers, small plants are to the customer than the brightness you to come 1A 800ma I give you my light you buy me ok, are the effects of heat and current LED lamp life of things, a lot of people bought six months or even a month or two to say a lot of dark, mostly from these two problems.


Fifth, the circuit design. Obviously manufacturers an open Gonggongzhengzheng, generally a control panel, a driver board and a display board. The control board and driver board will not do together, after all, is something of a high current one is something small current signals are separated from interference best ah. But most small factory outside he did not develop the ability to just get a professional system board's circuit board back installation (this has become a chain of), not to say the system board business without this technology, they are often some of the manufacturers the technical backbone out of business. But one thing they are very competitive, so there is no way to reduce costs to consider these factors, the degree of their surface is not at all understand the only assembly plant, under such conditions the price is the last word. Again it is important that constant, in order to reduce costs they exhausted all means, constant current power supply voltage of + 24v general way that can only be used six to nine road driving lights it. They are a hard-hearted to a + 48v voltage to a constant program to get it.


Select six, LED teeth numbers. Many people ask me do you have to do 108 more waterproof, and I said no was very depressed because of the loss of an order. Of course I am not saying 108 is bad. Why 54 into the mainstream because of a very important aspect of waterproof lamp cooling, because you do 108 waterproof lamp heat sink that much to do, ah, you go up a few people to install lift necessary? Now we are using the manufacturer first developed a method to open a mold and then find a professional to do the cutting radiator radiator manufacturers buy handy screw lock at the bottom of the lamp, the most important of the three elements of the heat I do not say it school physics:
1, the contact surface temperature (this is the outside temperature has no way you fast hardware, then you can use the fridge).

2, the air flow rate (some manufacturers use this, make a big cheese fan installed inside, and then do the heat so that the boss you do not realize the problem that is sealed inside, no matter how you turn him or to rely on the outside of the contact surface to heat ah). Three, that we used to increase the contact area, looking for professional manufacturers of heat sink fins, you would say why do not you make one thing (the problem here is not the problem of die-cast aluminum craft pressed thin heat sink) can be said your fin heat so the higher the density, the thinner the better. Of course, there are other active cooling fan in addition to the method, the heat vibration once saw a foreign done, he would then have the law of vibration speed to achieve the purpose of the heat sink and the effect is quite good, hands placed next to feel the wind out. But the price is also quite good. Hope domestic use to it, like the graphics card cooling pipe is also a good way if someone uses it.


Seven manufacturers choice. Do a little bit in order to lower the price for those who have no technical manufacturers of things, because they do not have technology so even if there is a problem can not be modified, they do not know where the problem lies. They are just part of China's largest industrial chain assembly inside a, or Maidou Fu can do stage lights Editor's Note Well. (No discrimination analogy, I believe he maybe a lot more than I do, but he is even less than you know.

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