This mirror has 3 touch buttons,the leftmost button is to adjust the brightness,the middle is dimming,the rest is defogging. This mirror is 0.2in copper-free glasses,easy to Installation in 2 ways:1.Use the power plug directly and plug it into the wall socket. 2.Directly connect the power cord and reserved cord on the back of the mirror. The light of this mirror can be adjusted to white light (6000-6500K), warm light (3000K) and neutral light (4000K) according to your preferences or environmental needs,before each switch, you can press the switch quickly.You can also hold down the switch for a longer time to adjust the brightness of the light. Color: Silver.