Coleman 635B721 is a fuel lantern with a 1-year limited warranty. It is designed to be used outdoors for lighting purposes and is not intended for use as a space heater. The lantern uses Coleman fuel and has a generator that produces light. The lantern also has a pump that is used to pressurize the fuel tank. The lantern is equipped with a bail handle and a ventilator. It also has a heat shield to protect the user from heat. The lantern can be used with a variety of mantles, and the instructions provide guidance on how to tie on a mantle and light the lantern.