Teeth Whitening Light LED Bleaching Teeth Accelerator For Whitening Tooth Cosmetic Laser Beauty Health Description: Power supply: 2 button batteries (included) Rated voltage: 6V Blue wavelength: 460 ~ 470nM Function: whiteningVoltage: DC6V LED lights: 1 star Blue light intensity: 400-600 mcs Blue wavelength: 460-465 nm Product color: blue Light color: blue Specifications: Fast and Convenient Simple To Use Easy to maintain Convenient to carry Sustainable work for 48 hours Teeth Whitening Light 1. Due to different monitors and lighting effects, the actual color may be slightly different from the image 2. Due to manual measurement, please allow 1-3cm deviation Size: all size Shipping color: blue Quantity shipped: 1