LED point light source — Taking LED as a point light source of luminous body
The concept of led light source:LED point light source is to use LED as the point light source, LED point source(led spot light) belongs to one of the artificial electric light source. LED light-emitting diode, is the use of semiconductor pn junction, the homogeneity heterogeneity PN junction, the metal semiconductor junction (MS), a metal insulator semiconductor (MIS) node of the light made of light-emitting devices. The working principle. The working principle it works on the same principle as other electrical properties of generally crystal diode, however, different crystal materials used.

At present, LED point source LED including visible light; not visible light, laser and other different types,the common light of life is visible light.
Light-emitting diode light color depends on the materials used, there are a variety of colors yellow, green, red, orange, blue, purple, blue, white, full-color, etc., can be made into various shapes such as rectangular, round and so on. LED has the advantages etc., LED has a long life (LED servier time),small volume, light weight, low power consumption (energy), low cost, and low operating voltage, high luminous efficiency, light response time is very short, wide working（operating） temperature range, color pure, firm structure (impact resistance, vibration resistance), performance is stable and reliable and so on a series of characteristics, so people favor.Because LED luminous body close to the “point light led light source”, lighting design is more convenient, however, if a large area display, current and power consumption are larger. in General LED lights can be used in electronic equipment, digital control, display boards and other display devices and opto devices, is also commonly used decorative optical communications, as well as building outlines, amusement parks, billboards, streets, and other places of the decoration stage.