How close and how bright are the lights? My next door neighbor and I both grow. The neighbor next to him has a very large yard light--it is pretty much like a street light, up on a big pole and really bright. I was worried about it the first year I was here, but it didn't seem to affect either mine or my neighbor's grows...except it seemed like they took a long time to finish. We have discussed asking her if she would turn it off this summer--I am not convinced that it didn't prolong the flowering phase somewhat. However, I had a great harvest last year, street light and all.