... oxidizes 16 or more teeth.3. 8 time presetting programs and 3 different light intensity outputs ... . Specification:1. Wavelength: 410nm-520nm2. Light resource: 6pcs large power LED light tube3. Emission time: 1m, 2m, ... Light System, Main Poles, Transformer , Machine Base Instruction Manual, Mouthguard, electronic cord9. Silver and white color available cool LED light teeth whitening beauty equipment ...