No. The pictures that you see on Amazon use some creative license as they are trying to show the prospective buyer where the heating elements are located. When these vests are on, you can’t see the elements at all. In fact, even if you were looking right at them they wouldn’t be glowing.
The exception to this is the ORORO heated vest, which is a wonderful vest but it has a logo area that lights up. Some people might like the extra visibility, while others might simply consider it to be a waste of battery power.