echnicianl Specifacation: Power requirement: AC 110-240V, 50/60HZ Working Power: 220v Wavelength: 480nm-520nm Light Mode: Continues Pulse light Working Temperature: 1-30 Work Humidity: 5-90%RP Size: 38CM*40CM*90CM Weight: 30KG Advantage: Semiconductor Light Source to Release Blue Light *increase the life of the machine *avoid the disadvantage of the halogen light source *no need to change continually and can work properly longer *remove infrared and ultraviolet light and stop the heat accumulation *achieve the safe and super-active whitening effect Intellective Operating System of Control Interface *can adjust the intensity of the light and pulse according to the need of different people *provide the more exact treatment solution for the patient. *can do the dental care at the meantime Modular Design of Machine *increase the stability of the machine *enable the faster and more effective after sales service New Type Power Supply System *suit the area with different pressure *have steady output power *can work continuously for a long time