1. Please allow 1-10mm error due to manual measurement, thanks for your understanding!
2. Professional installation is required if needed!
3. Do not scratch the surface of the solar panel.
4. When c-harge with solar energy, place it upright in direct sunlight to ensure optimal charging.
5. Please do not use it as emergency c-harge when it is raining for avoiding short circuits. (The front of the solar panel is water resistance (keep the D C interfaces away from water).