Why constant current is required?
Lighting Emitting Diodes need to work in strict working conditions. This is determined by their properties. LED Li [Read More…]
Tasters of LED current
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Small LED manufacturers brings chaos to LED lighting market
With the rapid development of LED lighting industry, the competition becomes more and more fierce. Almost every day, there will be a new born small LE [Read More…]
Analysis for light intensity of Light Emitting Diode
There three units can be used to present light intensity: Lux (unit of illuminance: the illuminace of 1L light within one cubic centimeter), Lumen (un [Read More…]
How Light Emitting Diode send out lights with different colors
Light Emitting Diode (LED) is a type of electronic components that convert electric energy into optical energy. Most LED Projects can send out lights [Read More…]
How to measure the temperature of LED PN junction? (2)
Some people suggest that the temperature span should be larger than 50 degrees when measure the PN junction temperature by using voltage method. The v [Read More…]
How to measure the temperature of LED PN junction? (1)
More and more people realize that estimating the specific temperature of LED chips by measuring LED lamps covers temperature is inaccurate. However, h [Read More…]
Temperature influence for LED PN junction
As we all know, light color of LED can be determined by materials used in n-type region and p-type region, and light intensity is determined by the nu [Read More…]
Why heat is generated within LED PN junction? (2)
3. Electrons in the edge of p-type section. Electrons pass LED PN junction and finally reach the edge of p-type section. Most of them will be capture [Read More…]
Why heat is generated within LED PN junction? (1)
LED (light-emitting diode) is a kind of one-way conductive electronic component. Generally, diode is a PN junction composed by a p-type semiconductor [Read More…]
The global duration of bright sunshine push up the plant lights led factory
At this stage, the global climate change intensely, and the extreme weather are more frequent than in modern times. From 2011,2012 Northern Hemisphere [Read More…]