Unifies both whitening accelerator and LED curing light ? Strong optical output power, maximum to 1800mW/cm2. ? Five treatment modes: Turbo, Normal, Soft start, Pulse, Pulse soft start ? Time setting: 0~60s for LED curing light, and 0~30 mins for whitening ? Full color LCD display ? Interchangeable battery pack, with both seat charger and direct charger ? LED cold light output can treat all dental tissue ? Alarm for low voltage ? Discontinuous operation: in the mode of whitening, the time-gap should be over 3 mins between two operations