FeaturesWireless use available.When fully recharged, the machine can be used for 1 hour for wireless use. Dual-purpose availableThe system can be used as standing light moved freely, or a desk light to save space. Emission time: 2m, 5m, 10m, 15m, 20m, by modesHigh quality pipe design for you to adjust the angle randomly. The 3-LED in the leftcenterright side are divided into 3 grades: High, Medium and Low.Patients canine and pre-molar can also enjoy perfect whitening with the equal source of light. 6 powerful LED tubes emit a high intensive cold blue light.LCD screen shows all the information for better communication between the dentist and the patientWith an average of 8 shades , you can finish the full teeth whitening at 30 minutes. Technical Information Packing Size(inner): 82*35*16cm N.W.: 8kg, G.W.: 11kgInterface: color LCDLight source: LED cooling blue lightOutput wavelength: 410-490nmInput power: 100-240v, 5060Hz