[Dimmable Led Mirror]: This LED round mirror light is dimmable, controlled with power switch. Simply touch the power switch button for 3 seconds to change light intensity from normal to brightest. [Wall Switch Control]: Both buttons have the memory function. The next time the circle mirror is turned on, it will remain the same as the last time it was turned off. It is recommend to use wall switch to control the backlit mirror light and defogger ON/OFF so as to save energy. [Anti-fog...