It seems people like to review these zappers, but few, if any of them, report their geographic location. That makes it difficult to decide if this is right for you in your particular region. Let me say up front that I am in Houston. Where I live is heavily infested with mosquitoes. There is a duck pond a quarter mile away and the woods and soggy ground are rife with the biting buggers. Too bad none is attracted to this 80-Watt zapper. I use the Octenal, I have the zapper hanging from the first story eave 7 feet off the ground and horizontally 25 feet from my patio as instructed. At night, we zap an occasional moth or a fly or two. We get some mosquitoes but I think they simply blundered into the light. I leave the thing on all day and night and it does, essentially, nothing.