Been trying to find a way to easily put lights in a remote sheep barn. Came up with a good way yesterday. I have some old solar walkway lights - the kind you can just put around a sidewalk without electricty. I cut a hole just larger than the lens in the metal roof and dropped the light through and caulked around the light. I cut about half the lens off to open up the bottom to full size and it lets much more light come through. The amount of light is amazing and since the light is yellow it doesn't attract bugs. Gives enough light to work by, to keep me from tripping and replenishes itself daily. I may put 5-6 of them in the roof before I am done.