pyramid switching dc power supply

Model aircraft equipment​

Electronic dictionaries​

Electric saws (mini models)​

Tablet computer​

To power amplifiers to facilitate the leader or organizer of the camping to convey information​

To power mini medical devices (such as electronic blood pressure monitors) to ensure health monitoring for campers​

To charge portable WiFi devices to enable stable internet connection during camping​

To power satellite phones to ensure communication safety in areas without mobile phone signals during camping​