In the news the degerminator UV sanitizer was tested in 2008 at major hospital. Tests were performed in a patient room to locate germ colonies. Next, a few seconds of germicidal UV light from the degerminator was applied to sanitize the test areas. Retesting found no active germ colonies remained, proving the degerminator works as advertised. So don't be fooled by larger wands they're all imitations of the degerminator, all made overseas and none of them, not one, can outperform the degerminator because only the degerminator uses genuine spectroline fluorescent UV tubes, recognized as the most effective and used in professional laboratory settings world-wide. The patented degerminator portable UV sanitizer is the second generation of this breakthrough technology. It operates on 4 AA alkaline or nickel cadmium rechargeable batteries and comes with an AC adapter for extended use. The patented degerminator was the first portable UV sanitizer offered anywhere in the world and it is the only portable UV sanitizer that is made in America; designed, engineered and built right here in New York. Our competitors' lamps are all mass produced overseas. The degerminator will sanitize any object or surface on which germs may be a threat around the home, office or on the road. It will sterilize toothbrushes, cooking and eating utensils, baby's toys and nursery surfaces, food preparation surfaces; even a glass of drinking water literally in seconds. To protect yourself and your family from contracting disease or illnesses, there is no faster or more effective way than by using the patented degerminator portable UV sanitizer. And for those who want to avoid or limit the use of toxic chemical cleaners and disinfectants, the degerminator is an excellent alternative. It is the ultimate green cleaning product. We say, clean with soap and water disinfect with light. Manufacturer's full 1 year warranty and the best customer service you ever had, guaranteed.