switching vs linear power supply

Small pumps (for pumping water)​

Heat hand warmers (charging models)​

Electronic dictionaries​

Electric blankets (small, for outdoor use)​

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

To power car vacuum cleaners for cleaning dust and debris inside the vehicle or tent during camping​

To power portable routers to improve the network signal at the camping site​

To supply power to cooking machines (mini models) to make sauces or supplementary foods for camping