The basic type of LED panel light

     Now there are LED panel lights for sale in many lighting markets, many people is not strange to it,but about the basic type of LED panel light, know people may rarely.
     LED energy saving lamp is made of cap type small power LED, power supply adopts a resistance capacitance step-down circuit. The cap type LED using package way of LED indicator, the epoxy resin package, so that the LED chip can not heat, light attenuation serious. Many white LED, after a period of use, the color temperature rises, gradually turned into bluish color, become dim. This kind of LED panel light is transitional products, the price is low, quality is poor.
     LED panel light is made of medium power LED, power supply generally use a resistance capacitance step-down circuit, some led light panel manufacturers to adopt constant current circuit, the heat dissipation capability of SMD LED is better than cap type LED, have a heat conducting substrate, with the aluminum substrate, a part of heat can be conducted away.
     LED panel light is made of high power chip LED, the power supply is generally adopts constant current isolation circuit, which has a constant current, such as 5W LED, usually by 5 pieces of 1 watt LED chip, series connection, using a constant current supply of 300mA, wide voltage power supply. When the voltage fluctuation, the current did not change, the brightness will not change. 5 pieces of SMD LED is welded on the aluminum substrate, aluminum plate combined with on the radiator, the heat can be rapidly dispersing when using, ensure the LED chip temperature is lower than LED allows temperature, so as to ensure real and effective life of LED panel light. This kind of LED panel lamp price is high, the quality is good, this is also the development direction of LED panel light.

The above article from Sourcechip official website (http://www.sc-ledlights.com/)
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