Recommendation for a 4MP turret style IP, POE camera?

Just buy the camera you want, a sheet of 220 grit sandpaper and a can of spray paint. enamel is best, in whatever color you think works best. Takes about a half hour per coat and multiple coats are best.
 
FYI - I skipped the sand paper and just used primer and latex paint to match my wall / door frame for a Dahua mini-dome wedge camera.
 
Hikvision recently came out with some 4MP turrets that use bigger sensors, so they should do better in low-light than the previous 4MP models. IPCT (the forum here) sells them rebranded under their name. Can get them on Amazon (US) or AliExpress (worldwide).

Review - IP Cam Talk 4 MP IR Fixed Turret Network Camera