This compact 1-LED Lantern weighs only 1 ounce with batteries and stands 2 1/2" tall. It comes with a keychain and carabiner so it's easy to attach to backpack or keys. Specially designed conical relector produces evenly distributed light that's bright enough to illuminate a roon, tent or wherever you need all around light. It provides 25 hours of continuous light and over 50 hours in flashing mode. Two lithium batteries are included. Water-resistant case available in Silver & Forest Green.