Panel cookers are simple solar cooking devices that use sunlight to heat and cook food. They typically consist of a flat, insulated box with reflective panels that direct sunlight into the cooking area. The design allows for efficient heat retention, making it possible to cook meals without using traditional fuels. These cookers are eco-friendly and can be used in various settings, from backyards to camping trips. They are particularly beneficial in regions with abundant sunlight, promoting sustainable cooking practices while reducing reliance on fossil fuels and minimizing carbon emissions.