Different Types of LED Lights

The Development of LED Lights

In recently, LED lights have come into thousands of households, however LED lighting market at the present stage is not mature enough. Especially the market of led spot lights China is not mature. Different manufacturers have different standards toward LED Lights. And no national LED lighting standard has been published, so it should also limit the healthy development of LED lighting market.

Large Power Chip LED

There are many types of LED lights. The first type is made of large power chip LED by LED energy-saving lights. The power generally adopts constant current circuit, which has a constant current, such as 5W LED, usually adopts 5 1 watt LED chip, 300mA series, with constant current source power supply, wide voltage power supply, so that the power fluctuations. The luminous flux to maintain a constant luminance with 5 patch of LED welding on aluminum substrate, and the aluminum plate combined on the radiator, the use of heat can be quickly dispersed to ensure LED chip temperature of less than LED allowable junction temperature, so as to ensure the LED energy-saving lights in the real life. Some manufacturers by virtue of its good quality, producing recessed led ceiling lights, become led underwater light suppliers. This type of LED lights is in high prices, good quality, but also the development direction of LED energy saving lights. It is a straw hat type small LED efficient light made from LED energy-saving lights, power supply using a resistance-capacity pressure reducing circuit.

3528 or 5050 Patch Power LED

Second category is the 5050 patch, from 3528 or 5050 patch in the power LED made from LED energy-saving lights, power supply is also generally use a resistance-capacity pressure reducing circuit. Some manufacturers use a constant current circuit compared with straw hat type LED, patch LED cooling slightly better as it has a heat conducting substrate. In conjunction with aluminum substrate, there can be part of heat. But as a result of or ignored LED heat, a lot of power chip LED lights have no radiator, they still use plastic shell. By means of resistance and capacitance voltage to have low power, due to voltage instability, current fluctuations, brightness is also fluctuating. A lot of LED lawn Lights are the same as these types. The third type is Straw hat type LED used indicator LED's form of encapsulation, epoxy resin package, makes the LED chip to heat dissipation. A lot of white LED, after being used for a period of time, the color temperature will become higher and then become the color of bluish and dim. There are also manufacturers committed to the development of low light straw hat type LED, but with no any change in encapsulated form, the light still did not change much. This type of LED energy-saving lights products is a transitional product whose price is low, and the quality is also poorer.

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