Our visitors love it. People dress up in old Guernsey costumes to sell their wares. One of the vendors is a seafood merchant. At this time of year flies can be a problem.
Flies seem to love the seafood more than the UV light hanging high up behind the display.
Other than enclosing the display in a transparent cabinet is there any way of preventing the flies landing on and flying around the seafood. Advice and opinions would be appreciated. I have inspected very many fish retail outlets of all types and am of the view that there is little to be done in an open air situation. The best you will achieve is still going to be a relatively poor prevention. In the situation you describe UV is of little use as the sun, fluorescent lights and reflective objects supply it in quantity and the electric version is only one other element.