Certification:CE/ISO/RoSH... Feature:Acne Treatment,Skin Tightening,Wrinkle Remover,Pigment Removal,Skin Rejuvenation,Blood Vessels Removal Product name:Led Light Therapy Mask Color light:Red, blue, green, yellow LED quantity:275 pcs Light color:red/blue/green/yellow Red light wavelength:640nm Blue light wavelength:423nm Green light wavelength:532nm Yellow light wavelength:583nm Power:32W principle:Photodynamic Therapy Show More