•charge under sunlight po. it usually needs 48 hours charge before first use. Plug in the solar panel to charge and see if the indicator light will turn on. You need to press the red button auto to enter the light control state to charge. When it is connected, press the red button and the light will flash and immediately go off, indicating that the charging is normal.
•If it’s not bright or charging, you can unplug the cable and plug it in and press the light control. The light should be sufficient