I turn it on when I put the chickens up in evening to coop area from outside tractor area. If it was a sunny day, the light stays on for about 4 hours and fades out as battery charge fades. If it was a cloudy day, the light only stays on for about 1-2 hours and fades out. It's not a very bright supplemental light, but does allow chickens to see inside the coop in the evenings.
Do you think that's enough to stimulate egg production? Currently sun rises about 6:30 am and sets at 4:30 pm (southern AL) so we are only getting about 10 hours of daylight. I don't have electricity to my chicken tractor, so if it isn't enough will my hens not lay until spring when days are longer?