Doctor Bright's LED Whitening System brings dentist-quality whitening technology into the home for do-it-yourself convenience and value. You can now perform your own customized, light-assisted teeth whitening treatments anytime, anywhere! The LED Whitening Light System was specifically engineered to boost the stain-fighting power of our clinically tested whitening formula. Used together, you can achieve a visibly whiter smile in just one sitting! In fact, a recent clinical study showed dramatic results whitening teeth up to seven shades in as little as two uses.