Solar-powered calculators are devices that use sunlight or artificial light to generate energy for their operation. They typically have a small solar panel on the front, which captures light and converts it into electrical energy. This allows the calculator to function without the need for batteries, making it an eco-friendly option. These calculators are commonly used in schools, offices, and homes due to their convenience and sustainability. They are available in various models, ranging from basic arithmetic calculators to more advanced scientific ones. The use of solar energy helps reduce waste and promotes the use of renewable resources, aligning with global efforts to combat climate change.