The light of LED flashlight is generally white ~ Can you change the color?

The color of light is related to the wavelength of light, and white light is the composite light of various monochromatic lights.

The light color of LED is determined by the energy band structure (band gap width) of semiconductor materials (direct band gap semiconductors, such as gallium arsenide, gallium phosphide and gallium phosphide) inside the LED lamp, and it is impossible to directly change the light color emitted by LED.

If you want to change the light color of the flashlight, you can consider adding a transparent color filter or replacing the color led (according to the light emitting color of the LED, it can be divided into red, orange, green (further 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).