2. Long press the metal ring to adjust the brightness, and it has the brightness memory function.
3. If your hand is too dry or the temperature is too low, the light may not respond.
4. The white light will not shine when power is low.
5. Insert the DC connector into the metal ring at the bottom of the moon lamp to charge, the red light is always on during the charging.
6. The red light will automatically turn off when fully charged.