Tested it for a week and I see some improvement. It is working if you use it daily for 5 minutes. I am happy with this PRODUCT it is not a waste of MONEY, the only thing is that you need to buy batteries cos they don't last long.
Material: ABS Voltage: DC6V LED lights: 1 Light source: blue light, cold light Light intensity: 400 - 600 mcs Wavelength: 460 - 480 nm Battery: one button battery CR2016, working for 48 hours. Shipping is accompanied by two batteries
Product advantages 1) Mini household, small and easy to carry; 2) Unique LED blue light technology that filters other harmful light sources. Scope of application Various pigmented teeth such as yellow teeth, black teeth, smoked teeth, tetracycline teeth, nut teeth, dental fluorosis working principle Cold-light tooth whitening is the activation of hydrogen peroxide by high-intensity blue light through nanoparticle and photolysis properties. The free oxygen atom of the hairline is rapidly decomposed, allowing the whitening agent to pass through the dentinal tubules and the color deposited on the surface and deep layers of the teeth. The hormone produces a redox reaction to whiten the teeth.
Instructions 1) After the whitening gel is applied, the whitening lamp is turned on and placed in the entrance; 2) The blue light emitted by the whitening lamp reacts with the gel to whiten the teeth; 3) The whitening light has a light time of 10 minutes. If it needs to be irradiated for a long time, it can be extended by turning it on again after the irradiation is completed.
Dimensions and Weight
Product weight: 0.0300 kg Package weight: 0.0350 kg