This is bigger than I thought it would be. But when it comes to mosquitoes-- the bigger zapper the better! It works well so far, mosquito season hasn't really ramped up yet though. It seems well made, though light in weight. I like everything about it but if I had one wish it would be that the cord is longer. I'd like to hang this up (like from a plant hook on the ceiling) and the cord will not hang down and reach an outlet near the floor. However I can't see why an extension cord could not be used. I bought it for indoors to stop stray mosquitoes from biting me at night, and for any other flying bugs that get in the house. so I do not know how it will do outdoors with swarms of insects. It is very large, though, so should stop a good number of them!