We've been using bug zappers for decades, have learned to repair them, change UV lamps to different styles, put them on timers in buildings to extend life and still get the job done.
In the past year or so, I've posted about imported zappers like the picture below.
We've bought a lot now and use them everywhere. Outside to kill moths that may become Pine Beetle Borers, and draw general nuisance bugs away from coming into the container at night, and inside the container and barn room to clear them when flying bugs come in.
For example, sometimes annoying big fly's come into my barn lab, zoom around and all I do is turn all the lights out and
ZAP!
Problem solved.
Power requirements are minimal and we run typically 4 on solar much of the time.
Millions of ways to creatively use them, like zap bears' noses when they snoop around.
Best $$ are on ebay. There are 2 similar models, I like the one posted best. Cost ~ $35 or so. A hell of a bargain for what they solve!
[Does anyone need a small vibrant pet bear...]