Meet the AhwaLight: a cool LED flashlight you can screw onto a water bottle to turn it into a lantern. You can use a simple solution like this to get by during power outages or outdoors. It fits many water bottles on the market. The included water bottle is reusable, 8 inches tall, and 3 inches wide. A simple idea that could get you out of trouble. You can support this project on Kickstarter.