I see some folks want the lights off for best night time IR quality. And, I understand it's important to maximize quality of the recording in case something happens on your property. Call me weird but I think a more brightly lit property equals less crime. Why hit up a brightly lit house and risk being seen when you can go to a property that sits in the dark.
I'm not trying to set up a trap to record crooks in high quality rather I'd like to discourage criminals to begin with. Anyhow, it's a different way to look at it. There's probably a good balance to discourage crime yet be able to record crooks.