Lasts up to 10 days on low setting, or up to 3 days set to its super bright 500 lumen cool white setting. It is made from impact-resistant ABS plastic and drop tested to 1m, and will survive a rain shower with its IPX4 weatherproof rating. The top rim of the lantern glows-in-the-dark, so you can still find your way about the tent or room after you turn it off.