In Lumio, 75 mm lens offering a magnification of 2x power of 40 bright white LEDs ,. It cross polarization, Lumio is a great tool for a assortment of dermatological exams Varicose veins, pigmented skin lesions, hair follicles. It much more. Lumio is the optimal device for general skin exams where an in depth, glare free image of the skin is essential. Lumio is powered by AA batteries that grant for a minimum of 250 exams at 30 seconds each. Model No. LUM is supplied with one Lumio, four AA batteries and one protective neoprene pouch.