Optimus Crux. Tiny, feather-light but at the same time absolutely reliable stove. The compact Optimus Crux has a folding burner head that makes it so small that it fits into the recess at the bottom of the gas cartridge. The 3.0 kW burner is powerful and stable, distributes the heat optimally and offers even simmering, fast cooking and performance without burning. Minimal pack size thanks to the foldable burner head. For optimum wind protection, there is the Optimus Clip-On windbreak, which is available separately (no. 43252).