Before using the desk lamp, you need to adjust the base switch to the ON direction;
Charge the desk lamp for more than 3 hours before using this product;
The blue indicator light flashes when charging, and the blue light is always on when in full charged;
When the USB output is working, the red light is on;
To protect the battery, please charge it when the light is dim;
If you don't plan to use it for a long time, you'd better turn the bottom switch to the OFF direction;
It must be recharged every 2 months if you do not use it, and it will be charged for at least 3 hours each time, otherwise the battery life will be shortened.