Be careful with these UV light companies.
A LOT of them have just recently popped up on the web, since COVID.
I suggest digging deep, for reviews/info on the company, before purchasing.
Another, similar company that I saw, had an identical product, for only $79.00.
It was exposed - in reviews - to be only 3 months old and to have virtually no customer service.
I’m not recommending anything and posted this only for comments. I also looked to see if there is a parent company we might have heard of. But I think it is true that UV lights have been used for sterilization and it would be good to learn of some reputable seller with a good product.
Maybe someone knows of such.