Power Cable: It comes with a long electrical cord (4.92ft) for added convenience and extraordinary mobility. Heat Sink: It is designed with heat dissipation vents on the back and sides, providing overheating protection and making it more comfortable and safe for you to use. Application It is a cooling light device, the light works on a teeth whitening agent(not included) which is applied on the surface of the teeth, It can be used for the yellowing and blackening of teeth caused by the deposition of coffee, tea stains, and wine stains, so as to help teeth whitening quickly. It is suitable for use in dental clinics, hospitals, and beauty salons. Suitable for both adults and children. Specification Color: White Martial: Metal, Plastic, Rubber Voltage: AC100-240V/ 50-60HZ Power: 36W, 12V/3A Number of LED Tubes: 10 Plug Type: EU Standard LED Tube Output Power: 6000 MW/CM2 Light Timing: 020 mins Sterilising Temperature: 13410/273.250 (20min) Lamp Size: 30*80 mm/1.18*3.15inch Power Instability: