1. Check whether the lights are correctly connected to the power source.
2. Check whether the hand waving is correct.
a. Hand waving: Move a hand leftward or rightward through the sensing range within 10 cm in front of the mirror to enable or disable the LED light. When waving the hand, keep all the fingers together (to avoid light leakage) and wave left and right at a uniform speed while the palm faces the mirror.
b. Sensor lights on both sides: Put a hand in a position less than 10 cm under the sensing point at the bottom of the light (the operation can be done from either side) to turn on or off the light.
3. Brightness adjustment: Put a palm in the sensing distance for some time.