I have portable chicken pens with an old calf hutches for shelter. During winter, I place them in a convenient location and stop moving them, and they work well. But I'd like to start lighting the pen with the laying hens at night in order to keep them laying through the winter. Does anyone have experience with using a battery or solar powered light for this? What kind do you use? I have used the solar powered lights they sell, you stick them into the ground, I tied them to the chain-link gate of the pen, just to have illumination for doing chores in the evening. Not sure if it's bright enough to help with egg production. I also have a battery powered lantern (the "old Brooklyn lantern") which is quite bright. Not sure how long it will last. When I kept the flock in a barn, I had a light on all night for them, it didn't seem to do any harm as far as keeping them awake and it kept them laying longer.