How many lumens do I actually need for a floodlight camera?

Most reviewers and r/reolinkcam threads we read suggest 1,500–2,000 lumens is plenty for a typical driveway or backyard, and several Reolink owners explicitly say 3,000 lumens is more than they need and run their lights dimmed. If you're lighting a long driveway or commercial perimeter, the 3,000-lumen Reolink Elite or TrackFlex makes sense; for a standard residential install, 2,000 lumens (Ring, Eufy E340, Eufy E30) is generally cited as sufficient.