I live next to a cypress swamp.  I have 3 of these positioned around the house.  They are a must have.  There is a lack of choice for acre+ bug zappers and I've been using Flowtrons for 3 years. Put simply, they do not last.  The fifth burned out today.  I'll be ordering my sixth of these in 3 years.  Three have burned out so far both BK-40s and BK80Ds.  Most die less than 1 year. The bulbs last longer!  I have 3 spare bulbs in a drawer now.  I've called the company numerous times on several failures.  They said they'd email me an RMA number which I never received.  They do not return calls.  So, Flowtron, how about instead of scr#wing customers you get a hold of our cheap Chinese suppliers and demand: thicker, more reliable PCB boards; more reliable neon ballasts; more reliable coils, etc. etc. etc.  They've all burned out in the 5 models I've gone thru.  But the manufacturer knows the quality is poor otherwise they would honor the warranty.