Dental Whitening Light 3 Colors 8 LED Light Chips Light Teeth Brightening Cold Light 110‑240V EU Plug Item Type: Teeth Whitening Light Material: ABS Wavelength: 460 to 490nm Whitening Time: Each course of treatment 2 to 3 times, 10 to 15 minutes each time. Application: Adhesion of external pigments (tobacco, coffee, cola, etc.) Endogenous pigmentation (mild tetracycline teeth etc.) Dental fluorosis Congenital uneven tooth color Suitable for unknown cause of the black and yellow tooth surfaces Method of using 3 color cold light whitening instrument with whitening agent: Purple light (Cleaning) Red light (desensitization) Blue light (whitening). 1. Teeth must be cleaned (ultrasonic cleaning) with purple light for 3 minutes. 2. It takes 1 to 2 minutes to apply gingival protection gel and apply blue light to cure. 3. After curing, apply desensitization agent (on the tooth surfaces) and leave for 5 minutes (without light) to wipe directly. 4. Apply the whitening gel and wipe off after 10 minutes of blue light irradiation, and then use blue light irradiation for 10 minutes (3 times of 10 minutes) or blue light irradiation for 15 minutes and then use blue light irradiation for 15 minutes (2 times of 15 minutes). 5. Use red light for 3 to 5 minutes and purple light for 3 to 5 minutes before gargling. How e: 1. Before using the whitening machine, you need to put the whitening equipment together. Please open the whitening machine packing case, remove the parts from the packing case, and take off the protective film. Assemble the equipment according to the installation diagram in the instructions and check whether the wiring is correct. 3. Press the "TIME (Time)" button, the display time will flash, then, you can adjust it by (V) button, each time you press to increase or decrease 1 minute, the maximum adjustment time is 30 minutes, you can set the whitening time as required, then press the "TIME (Time)" button to determine the setting time. 4. Press the "POWER" button, and the output POWER value is flashing. At this time, you can adjust the set value through the (A) down (V) button. Then press "POWER" to extend the selected power. 5. Press "Start" to start, A, B mode can be adjusted, A is red light, B is blue light, A B is mixed light. 5. Temperature protection device is set in the control circuit of the whitening device. When the temperature of the blue LED lamp exceeds 60℃, the whitening device will automatically stop working.