• Keep the device dry, do not use it at any wet place.
• This product can only work in DC condition. It can not work while charging.
• When use the battery power supply, you need to charge in time if brightness of the light significantly weakened.
• Turn off the power when you do not use or charging.
• You can not use liquid cleaners to clean the product.
• You need to recharge in time when the battery power is not full, or the battery will be scrapped.