Yes, the collector is at the top, exposed to the sun. At night they all light up and look FABulous!
My husband put one of the wide-open ones on a copper stake, and I made a cover for it with a hole in it for the light to fit in. Same thing could be done with an upside-down recycled glass plate by drilling a hole in the center with a glass drill. The plate keeps the solar light in place, and fits just over the edge to keeps rain and leaves out of the globe.
Originally I put candles in all of these, and they were incredibly messy. Now they're almost zero-maintenance, although some of the batteries have worn out and had to be replaced.
