Was very surprised to see this attracting and killing large numbers of south Texas mosquitos.  I figured without the bait it would be of little use in that area.  With the bait I did some counts (kill rate over 10 minutes) and estimate I am killing 10-12,000 mosquitos a night. This does not include all the moths and other pests that are being zapped.  There is a carpet of mosquito corpses under the unit every morning. I live near a swamp so I will never be able to eradicate them but I can now enjoy the pool which was impossible at dusk previously.  I am very happy with this purchase.