B+W UV-PRO PremiumUV-PRO is a safe and portable sterilizing unit. It provides an easy and effective solution for protecting your cameras and lenses from molding, extending service life of your photographic equipment. UV-PRO is a unit with Deep Ultraviolet Light Emitting Diode (DUV-LED), which emits rays with wavelength shorter than 300nm(UVC). UVC protects lenses and cameras from go8ing muldy by killing bacteria on the coating, destroying their DNA & RNA thus permanently halting the reproduction. Portable, Small & Lightweight - Can be carried around for outdoor shoots or overseas travel 3 Cleaning Functions - Cleans front lens, rear lens and camera sensor Safety feature - Automatically switches off if the unit is accidentally removed during cleaning Speedy Process(Only 2 minutes per cleaning) Made in Germany