seems to work with good batteries
Verified Buyer Reviewed by utah john from utah on Monday, May 9, 2016
bought this as an experiment- first attempt with new alkaline batteries went well- then stepped back to using some slightly older batteries and the UV light went on but off quickly- it appears that complaints about the performance are related to a set of batteries that are overall weak or mis-matched weak ones with a couple of strong ones. So, the verdict is that this is a good system provided you have a strong set of 4 AA batteries. I will keep a set of strong new Li batteries for my prepper needs. The 4 star rating will be up graded when i complete the experiments with my Ni/NiH rechargables- I like the compact structure of the unit and it appears to be sturdy.
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