My grandfather had one of these, so I am used to seeing the gentle blue glow of a bug zapper. However, the 1 1/2 acre model is 50 feet from the back of the house and from my family room it looks like I live on the Vegas strip some evenings because the light is so bright! However, I live in the woods and the bug zapper is just what the doctor ordered. I have this set on timer and have throughly enjoyed bug-free, chemical free evenings on my patio.