In fact, the structure of led high bay is very simple, which is just to pack a quadrate diode chip into a special epoxy layer and the base is plastic, resin or ceramic. The electron, located in the center of semiconductor, is able to convert into light by sensing material, while the microchip that is sealed in the epoxy layer has the ability to reflect the light. Typical LED has two plug feet and the length of the feet is a little different. The long one is anode or positive pole and the short one is cathode or negative pole.
There are many factors that decide the observed angle of light, including different size and shape of LED base, the distance between size of LED chip and epoxy lens, shape of reflector, and so on.
The chemical elements that produce diode chip combine together and cooperate with energy aspects are able to extend to generate photon to determine wave length and the color of light. At the beginning, LED approaches the red of infrared and then approaches ultraviolet light. Now it is able to generate full spectrum of light.
Generally speaking, when use single chip, the light of LED is monochromatic. If pack two or more color of chip into the same epoxy layer, it is able to create multicolor LED. The multi-chip technology with three layers is capable of coming into being while light. That is to say, when red, green and blue are combined together in a right proportion, it could create white light.