Critter, I have corrugated metal on the lower 2 feet of the winter aviary for wind breaks, with only one section open wire. Light does get in thru this area, but I guess not enough to matter. If your lights are along the outside and nothing stops the light from getting in, than I would suspect that even that much solar light will effect them.
You have to remember that quail are born with a certain amount of eggs to lay and if pushed to lay nearly all year long, you are shortening not only their lives, (laying is more taxing on their bodies), but that they will quit laying much sooner than quail allowed to rest over the winter. If you keep up with the hatching however you can replace the slow or non layers.
