... System can convert electric energy into strong blue light. The cool blue light activates the dental whitening gel and oxidizes the ... screen shows all the information to facilitate communication between the dentist and the patient.6. With an average of 10 ... 60Hz7. Output power: 12V DC, 2.2A8. Whats included: Cool Light System, Main Poles, Transformer , Machine Base Instruction Manual, Mouthguard, ...