Before the advent of battery power, someone looking for a portable source of illumination picked up a lantern—an enclosed light source that originally used whale oil as fuel and helped define the phrase “fire hazard.”

The latest reinvention of the lantern is the BioLite SunLight, an LED-powered light square (3.35 inches by 3.39 inches) that uses solar power for energy and can last for up to 50 hours in “low” mode on a single charge. Campers or other outdoor enthusiasts can clip the SunLight to their bag during the day and forget about it. At night, it provides 100 lumens of light to brighten camping sites or visualize a path. Different colors—red, blue, green, and white—can be selected depending on your mood.

BioLite

The SunLight has a built-in kickstand for placement on the ground, but you can also buy hanging hooks if you prefer overhead illumination. If solar power isn’t your preference, the units can also be charged via USB connection in two hours. Either way, the design can free you up from relying on or having to carry batteries. BioLite’s suggested retail is $29.95. You can find them here.