I replaced the dim vanity mirror light bulbs with brighter white LED bulbs. If you do this, I recommend that you use a plastic pry tool to remove the old bulbs because if you use a little metal screwdriver as I did, and if you touch the metal contacts with it as I did, you’re probably going to blow a fuse. As I did.
The little plastic covers just pop off with a little leverage, and the bulb looks like a type of fuse. Pop the old one out, and press the new one in. Orientation matters. If it doesn’t light up right away for you, turn it around.



