This mirror is adorable! I love that it has 21 dimmable LED lights. To power on the mirror you can use either the USB plug that connects to your computer or any phone plug that has a USB outlet. To dim the light just press and hold the circle button on the front till the desired dim light. If you want it brighter you just repeat the process by pressing the circle button again. It has three different magnification mirrors, two are attached and are 3X and 2X. The third is a bonus 10X with suction cups to attach where ever you would like. If you would like to check out the product here is a link to where I got mine.
http://www.amazon.com/gp/product/B06Y...