I don\'t remember what kind it is and I\'m too lazy to walk to the bathroom.
Light? Hmmm.. I don\'t think so. I can\'t imagine enough light can shine through the screen to be able to do this and there is no light inside the razor itself.
No, I\'ve never timed it, but it\'s very obvious that an intense cleaning takes longer. It\'s pretty loud and if I make the mistake of hitting the clean button when I go to bed it\'s annoying because it runs the fluid, then sits in a bath for a few minutes, then it runs the blades to mix it up. It does it several times over at least 10 minutes.