Ideal for middle and high school students , educators , outdoor enthusiasts , campers , and emergencies responders seeking safe power solution This generator features a user friendly design , offering both A-C and D-C outputs , making it a intuitive tool for demonstrating electrical principles Crafted from robust metal and materials , this generator is designed to withstand various environment , providing a sustainable power source Whether you ' re in a physics laboratory , on a camping , or facing a power outage , this hand cranked generator ensures you have access to essential electricity the convenience of generating power any where with the hand cranked A-C and D-C Generator , perfect for electricity experiments and outdoor use, Manufacturer: HUAJINGKEJI