Ideal device for general skin exams where in-depth, glare-free images of skin are essential. With its 75-mm lens that offers 2X magnification, the power of 40 bright-white LEDs, and cross polarization, this is a great tool for a variety of dermatological exams: varicose veins, pigmented skin lesions, hair follicles, and much more. Powered by 4 AA batteries that allow for a minimum of 250 exams at 30 seconds each.