I came across this little oddity, a user on reddit said he experienced a bright light in the mirror however no other light source was present.
The video is 10 seconds long and it shows the light standing on the desk and the light which, allegedly, originated from the mirror.
[embedded content]Source: https://www.youtube.com/watch?v=ednbT6QY4CU&feature=youtu.be
Just for clarity ... Read even more
