The photos/videos shown are inaccurate! They don't glow at all. I have kept them under lights, others have been in the sun (4 days) and they have never glowed at night. They're just pink.
Pros
EASY INSTALLATION: Easy installation without tools. The inner tire valve stem protection cap has a rotating thread for easy hand tightening during installation. It's also easy to remove when you want to check air pressure.