Under the eaves is a good location, usually. To see well, we need adequate light, but not too much. Too much can ruin our adaptation to less well-lit areas at night, blinding us just when we need to see. When we go from too bright to too dark or vice versa, we have poor visibility for a while. To see well, we need to minimize any glare.
Glare never helps visibility.
To see well, we need to minimize dark areas near well-lit areas. This means good lighting design is required. Think, too, about energy savings. We should not waste light nor use inefficient light sources. Use light, don't waste it.