The main problem with getting special lighting is the lack of research. I checked with a few experts, and all say the lights do not have covers because that would block the benefit. However, they also all agreed that the lights should always be mounted overhead and not on the side of the cage because they could cause eye damage. I’ve also heard they do not cause eye damage. However, when research is lacking, if some feel that something can be a danger, I avoid it for my birds out of an abundance f caution. I do think most experts agree that any full spectrum lighting should not be the only light source, and should be limited to anywhere from 4-8 hours per day.
Thank you for asking Lafeber,