What band is electroluminescence?

Short wave. Cold light is blue light with a wavelength between 480 nm and 520 nm, which is mainly used for tooth whitening in clinic. Using bleach can remove the pigment attached to the tooth surface. The main ultraviolet band of small cold light ultraviolet lamp is short wave. Be sure to go to a regular beauty and medical institution and avoid going to a place without medical qualifications for surgery.