... and good effect. 2.Convenient for use. 3.Good Price. Teeth whitening light is characterized by rapid, simple, practical, safe, you just ... then oxidize the pigment in teeth.Item specificsteeth whitening home use lightavailable for logo print 1, Fixed Voltage:DC6V(CR2025 3V*2 ... .(blue,white,purple,black,silver, etc.) hot teeth whitening light for home use, teeth whitening kit light