Glamza Hello Smile LED Mouth Tray Are you looking for brighter / whiter Teeth! The Glamza 'Hello Smile' LED Mouth Tray contains a staggeringly strong LED bulb which emits more light than any other mini LED tray. It comes with an attachable mouth tray for hands free whitening - No need to hold the light with your hand. The 'Hello Smile' Mouth Tray helps to accelerate the breakdown of whitening gel meaning a wear time of only 20 minutes per day! Usage: Can be used without gel but for best results we highly recommend using in conjunction with our non-peroxide based teeth whitening gel which can be found in the link below Without Gel: Simply place the tray in your mouth with the LED light on and wait 20 minutes, up to 3 times a day.