I don't know what model of light fixture this is. I presume it is a few decades old like the house. It takes GU5.3 bulbs. The cover slips over the body (and the red o-ring) and holds the clear(ish) lens in place. The "lens cover" is very cloudy on both sides from years of exposure. The center is something that is not glass, and the perimeter has a rubberized seal integrated which is in pretty bad shape, making the lights leaky. So cleaning that lens cover, even if possible, wouldn't be enough... ideally I'd like to replace it. Any idea if this is possible?