We order these lights towards the end of the season, so haven't gotten a ton of use out of them yet. The quality is great - I was pleasantly surprised by how heavy-duty they are. We have these at our lake house. We are in a heavily wooded area and the mosquitoes are thick. The lights didn't completely get rid of the mosquitoes, but they definitely help. We also have them hung in a straight line. We may have to figure out a way for next season to crisscross our patio to create zones of coverage, as suggested in the installation instructions. Overall, we are satisfied with our Bitefighter lights and would recommend them.