Need something weatherPROOF, 2-4MP starlight or great in low-light, 4-6mm lens or varifocal, POE, metal case if possible. Replacing a foscam FI9804W, been up there for several years, finally died. It sits on top of a grain silo about as exposed as it can get. Bullet type preferred but could do turret I suppose if weather-proofed enough. Most of my cameras are Dahuas or older Foscams, like to keep to Dahua brand or similar if possible for simplicity. What do you guys recommend? Long list of cameras, best to ask those with experience with them. 
Tnx!
-G.

Tnx!
-G.