1. According to the luminous color of the luminous tube
According to the luminous color of the luminous tube, it can be divided into red, orange, green (subdivided into yellow green, standard green and pure green), blue light and so on. In addition, some light-emitting diodes contain chips of two or three colors.
According to the light emitting diode doped or not doped with scattering agent, colored or colorless, the above-mentioned light emitting diodes of various colors can be divided into four types: colored and transparent, colorless and transparent, colored scattering and colorless scattering. Scattering light-emitting diodes and up to be used as indicator lights.
2. According to the structure of light-emitting diodes
According to the structure of light-emitting diodes, there are full epoxy encapsulation, metal base epoxy encapsulation, ceramic base epoxy encapsulation, and glass encapsulation.
3. According to luminous intensity and working current
According to the luminous intensity and working current, there are ordinary brightness LEDs (luminous intensity 100mcd); the luminous intensity between 10-100mcd is called high-brightness LED. Generally, the working current of LEDs is between ten and ten mA to tens of mA, while the working current of low-current LEDs is below 2 mA (the brightness is the same as that of ordinary light-emitting tubes).
