I purchased this set of lights to go around the mirror in my bathroom so I could have extra light to see how to do my beauty care routines. I love them. The lights come with 3M adhesive discs to mount them to surfaces. It is powered by a USB plug so you will need an adapter to plug it into a standard outlet. The lights have 10 bulbs and the bases of the bulbs turn to reel the extra wire in for a cleaner look. The lights have a controller built into the plug and they can be adjusted into 3 different colors with 10 levels of brightness. The light colors are cool white, warm white and daylight white so I can change it based on the look I am going for when I apply my makeup. They are fantastic and a must have beauty tool for makeup applications!