The Optimus Crux Lite is one of the world's lightest stoves; only 3 ounces. Similar to best selling crux but does not fold as flat. Powerful and stable 3000 W burner (precise simmering and fast boiling). The lightweight that boils water fast, but won't spot burn while simmering. Specifications: - Fuel: Butane, Isobutane, propane - Output: 3,000 W 10,200 BTU - Burn Time: 90 Minutes Maximum Output 8 oz. can - Boil Time: 3 Minutes / 1 Liter - Dimension: 3" x 2.2" x 2.2" - Weight: 3 oz.