Window tinting refers to applying a thin film of laminate to a car's glass to make it darker. There are many reasons people might choose to do this, which we already covered before, but some people like the way it looks.
One of the great things about window tinting is that it doesn't actually make anything darker inside your vehicle, so you're still able to see clearly what is happening outside.
The tint is created with a special film that lets in certain light rays, but not others. Different levels of light will be visible depending on the tint level you have.
Tinting your windows is different from wearing sunglasses. When you wear sunglasses at nighttime, you can't see anything. When you drive at night with tinted windows, you're still able to see all your outside surroundings clearly.