light fixtures

I have 7 of these for sale, all working. Full specs: https://thinlite.com/product/163c-weather-proof/ PM me if you're interested

Many of our recessed light fixtures that operate on battery power have grown old and cracked or been damaged. I have been informed that the company that made these fixtures is no longer in business. Does anyone have a suggestion as to where I can get replacement lights or how I might upgrade...