I had purchased a pair and the first time I used t...

I had purchased a pair and the first time I used them the light stopped working after 1 hour of use. I tried multiple things to try and get it to work. I called and got a new light sent and I used that new one three times and the light again stopped working. When I used it for those three times, it would not keep its charge. The light also got burning hot. I m so disappointed that I even purchased these.