MiniMAX (TM) Portable Ultraviolet Germicidal Lamp Patented 5 watt design offers state-of-the-art engineering University tested and proven to destroy over 99.9% of germs Unique, patented reflector triples the irradiance and UV output of our previous model Destroys most germs in under 5 seconds! Quickly kills germs on hard surfaces, objects and even in water...sterilizes toothbrushes, too!