I'm a Dahua fan and would suggest looking at the IPC-HFW4231E. It's a 2mp, Starlight, 3.6mm fixed lens, mini bullet with PoE. I have an earlier, similar, model which serves as my weathercam, among other duties, and I can "force" a color picture at night because there is a street light about 200 feet behind it. I don't run color at night, though, because I also use it for security purposes and the color picture is a little noisy for that. Mounting it to a balcony railing shouldn't take much more than a couple of stainless steel hose clamps.