Solar-powered devices offer a sustainable and reliable source of energy in various situations. Here are some solar-powered devices that can be useful no matter what:

1. Solar-Powered Flashlights: Solar flashlights are handy in emergencies and outdoor activities. They charge during the day and provide light at night without the need for batteries or electricity.
2. Solar-Powered Power Banks: These devices have built-in solar panels to recharge their batteries using sunlight. They can charge smartphones and other small electronic devices, ensuring you stay connected during power outages or when off-grid.
3. Solar Water Purifiers: Solar water purifiers use sunlight to disinfect and purify water, making it safe to drink in areas with limited access to clean water sources.
4. Solar-Powered Radios: Solar radios keep you informed and entertained even when there is no electricity available. They often come with additional features like flashlight and phone charging capabilities.
5. Solar Cookers: Solar ovens use sunlight to cook food without the need for traditional fuels. They are ideal for camping, outdoor cooking, and during emergencies when other fuel sources may be limited.
6. Solar-Powered Ventilation Fans: Solar fans can help ventilate spaces like attics, greenhouses, and sheds, reducing heat buildup and improving air circulation.
7. Solar Water Heaters: Solar water heaters use sunlight to heat water for domestic use, reducing energy consumption and lowering utility bills.
8. Solar-Powered Backpacks: These backpacks have integrated solar panels to charge small devices like phones, cameras, or GPS units while you’re on the move.
9. Solar-Powered Security Cameras: Solar security cameras offer surveillance without the need for constant electricity supply or frequent battery changes.
10. Solar-Powered Desalination Units: In areas with limited freshwater resources, solar-powered desalination units can help convert seawater or brackish water into drinkable water using solar energy.
11. Solar-Powered Wi-Fi Extenders: These devices use solar energy to extend the range of Wi-Fi signals, particularly useful in remote areas with limited internet connectivity.
12. Solar-Powered Refrigerators: Solar fridges are beneficial in off-grid or remote locations where access to electricity is limited. They can preserve food and medical supplies using renewable energy.

By utilizing solar energy, these devices can provide crucial services and convenience regardless of the availability of grid electricity, making them useful in various situations and environments.