LIBERTY MANTLELESS LANTERN Brunton Patented platinum element eliminates the need for delicate mantles. Adjustable light ouput up to 80 watts. Built-in reflectors focus the light exactly where you need it. Convenient piezo ignition system. No fragile glass or plastic. No priming or pre-heating necessary. Includes durable nylon case. Runs on butane fuel canisters. Max burn time: 6 hrs on high. Size: 4"" x 2.5"" x 1.25"" Weight: 8.3 oz.