Ok, so this is a bit of a brag. For my birthday my DH gave me solar powered lights for the INSIDE of the coop. It's a solar panel that mounts on the outside to charge 4 batteries, with an 8ft cord to a flourescent light that mounts inside the coop. For me it's a perfect gift! He even knows I love assembling and putting up my own stuff. If anyone is interested in these lights he got them at Harbor Freight tools.