Light-emitting principle: LED light uses solid semiconductor chip as light-emitting material, and emits photons by the excess energy released by carrier recombination in semiconductor, directly emitting red, yellow, blue and green light. On this basis, by using the principle of three primary colors and adding phosphor, light of any color can be emitted.

Current control: The light-emitting principle of LED light includes the regulation of constant current power supply and the use of linear technology to control the current. Specifically, the internal current is controlled by digital input power supply and controlling the square wave ratio; or multiple LED groups are controlled by grouping and controlled by grouping device.

Light-emitting form: LED light can form self-luminous forms of point light, line light and surface light. Linear light-emitting LED is often used for contour lighting, and products need to choose products with different tube diameters and surface brightness according to the ambient brightness and usage scenarios.