We've had this product for over a year and although the range works properly, we've had problems with the installation of the 2 little halogen lights. These are not your typical screw in lights.  Each light has 2 "pins" that fit into sockets.  It's easy enough to get them into the socket, but then you have to turn them slightly so they sit in a  narrower part of the socket.  It takes some effort to do and it's hard to know if you got it tight enough or not.  I feel like I'm going to break the lights or socket when installing.   I've had two instances in the last year in which I've suddenly had a light drop into a big pot of food.  I've felt like I had to dump the food in both instances because glass from the light has chipped off into my food!  What a waste.