I'm still looking for more information on the UV systems, but they don't appear to be cheap. They're not just the standard UV bulb that you buy for a few dollars. These use specific light wavelengths to kill pathogens (bacteria and protozoa). I need to make a phone call to see if the UV bulb in the link, below, includes the wand (similar to a flashlight). There are other sources, so I might be able to find a viable alternative. I'll keep you posted.
Rick
VWR.COM - Product Page