How to debug the cold and warm light of LED lamp? Are there two kinds of lamp beads?

One kind of cold and warm light debugging is hierarchical color matching, the other is stepless color matching, and there are two kinds of lamp beads. It is very simple to color the lamp beads or lamps in cold and warm light. In fact, two color temperatures of white light and warm light are integrated on one lamp bead, and white light is white light when energized, warm light when energized, and neutral light when energized together. The color temperatures are divided into 3k, 4k and 6k.

Light-emitting diode (LED) is a commonly used light-emitting device, which emits energy through the recombination of electrons and holes, and it is widely used in the lighting field. Light-emitting diodes (LEDs) can efficiently convert electric energy into light energy, and have a wide range of uses in modern society, such as lighting, flat panel display, medical devices and so on.

this kind of electronic component appeared as early as 1962, which can only emit red light with low luminosity in the early stage, and then developed other versions of monochromatic light, which can emit light all over visible light, infrared light and ultraviolet light, and the luminosity has also been improved to a considerable degree. And the use is also from the beginning as an indicator light, display board and so on.

Light-emitting diodes, like ordinary diodes, are composed of a PN junction and also have unilateral conductivity. When direct voltage is added to the LED, holes injected from the P region to the N region and electrons injected from the N region to the P region.