I like to be in my tree and set up at least 1 hr before sunrise. Preferably 1.5 hours. If the walk is an easy one (either on a nice trail or through a field) I keep the light off. If the walk is a tough one (over logs, through ravines, brush, etc) I use a light just so I don't trip and fall. I like to use a light when I'm in the woods because I've almost stepped on porcupines and skunks a couple of times walking in the dark.