Teeth whitening lights, also known as LED teeth whitening lamps, work by emitting a special wavelength of blue light that activates the whitening gel used during the teeth whitening process.The whitening gel usually contains hydrogen peroxide or carbamide peroxide, which are active ingredients that break down with temperature increase and remove stains on the teeth's surface. When the LED light is shone onto the gel, it activates the peroxide, allowing it to penetrate the tooth enamel and break down the stains more effectively. Teeth whitening lights also help to speed up the chemical reaction between the peroxide and the stains, making the whitening process more efficient in a short amount of time.The blue light used in teeth whitening does not harm the teeth, gums, or any other surrounding tissues, and the entire process is generally considered safe and effective when performed by a trained dental professional. Choosing a professional teeth whitening lamp for a dentist or beauty salon requires careful consideration of several factors to ensure effectiveness, safety, and compliance with professional standards. You should take these factors into consideration inlcuding light source, power output and intensity, safety standard, ergonomics and patient comfort, and durability and warranty. If you have any question in choosing whiteing light, please feel free to contact us.