Basic definition of LED lamps and light engines
At present, the manufacture of LED lighting industry groups to understand basic knowledge and requirement of lighting is still inadequate, and traditional lighting production groups also tend to lack the broad and deep understanding of the characteristics of the LED lighting, not in the design and application of fully advantage of the characteristics of the LED, to play with the effective use of foster strengths and circumvent weaknesses, so in lighting LED is applied to the lighting device, caused a lot of unreasonable and even wrong design. For this reason, it is necessary to connect the two by the basic definition, and this paper extracts reference documents [3][4] as the basis for the discussion.

Definition of lamps, lamps and LED modules:
Lamp (LAMP) A light source made to produce light radiation (usually visible). (Note: This term is also sometimes used for certain types of illuminators)
-- LED array or module: An LED package or chip component on a printed circuit board or substrate, which may have optical components, additional heat, machinery, and electrical interfaces intended to be connected to the load side of the LED driver. The device does not contain a power supply and a standard lamp holder. The device cannot be directly connected to the branch circuit, as shown in FIG. 1. L LED module types include: Integral frozen LED module, integral LED Module, integral ballasted LED module, built-in LED module, built-in frozen LED module Module), independent LED module, independent ballasted LED module, etc. All the above LED modules belong to the light source.

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