eatures: Touch Switch: When you do not need it, pls turn off to save electricity. Brightness is adjustable: Touch sensor switch, long press to dim the light. Smart Touch Button: Long press the touch button to adjust the brightness freely, turn on/off the light. Low power consumption: powered by 4 x AA batteries (Not included), low power consumped so that the 22 LED can work continuously for super long, no frequent battery replacement. 22leds (white light),high brightness, very visible to make up. Two ways to rotate,180 degree rotation by the holder;180 degree rotation by the plate on the back of the mirror. Compact & Portable: Versatile Portable Design,you can take it anywhere. How to Operate Move the switch in the mirror back to the "ON" position firstly. Touch the smart button in the bottom of face side, and light on. Press and hold the smart button to increase the brightness, and long press again to dim the light. Press the smart button again to turn light off. When not in use, move the button in mirror back to "OFF" position, then standby power consumption can be saved.