2012年5月30日星期三
types of led bulbs in LED Signal Lights
With the wide application of LED Lights in our lives, the more traffic lights, railway signals, electronic equipment signal lights are high power rates, using high power LED sources. High Power, as the name meaning, heat generated is much larger than ordinary LEDs, which is much brighter. High-power LED used in the signal light has very strict requirements, can not just ordinary LED for the LED lights, differenttypes of led bulbs. For the following reasons:An ordinary LED general use epoxy resin as a mounting plate, high-power LED aluminum circuit boards (MCPCB).Ordinary LED using the wave soldering machine or manual welding can be high-power LED SMD welder, it’s very important for LED productsHigh-power LED chip technology, highly integrated electronic components, the lightboard and power supply are all done very little, while the ordinary LED and its supporting components are difficult to achieve. Although the ordinary LED power is small, single LED, low fever, but its heat resistance and thermal effects are poor, while the high-power LED in all types of led bulbs is relatively concentrated, but also use chip technology installed in the aluminum panel, so you can easily design some of theradiator. Relatively normal LED glow, high-power LED in all types of led bulbs is relatively concentrated in the light distribution approximately as a concentrated light source, to avoid dark spots caused due to dead lights; high-power LED service life is longer and to better use as a concentrated light source. In summary, high-power LED High Bay lights in the universal application or due to the number of tubes, less slip, easy to use slip constant current power supply, to ensure that each LED has the same power supply. Even if individual failure will not affect the other LED supply current; and the cooling effect of high-power LED junction temperature will be relatively lower, so life will be extended; a bit more important, high-power LED allows the operating current of more than 10 times of general LED current control fluctuations in a few milliamps (ma), and will not impact on the high-power LED, but relatively common LED products, but may cause damage to the phenomenon, caution.
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