Iwatani CB-TC-PRO2 Butane Torch Burner features an adjustable flame shape controller, super high heat up to 2700F (1500C), anti-flare, push-n-twist fuel attachment and a piezo electric ignition. The flame shape adjustment knob adapts to various cooking applications. When rotated to the right (clockwise), a concentrated and pointed flame is produced while rotating the knob to the left (counterclockwise) , produces a gentler and more spread out flame. Includes stabilitizing stand that attaches to the butane canister for more stable and safer operation. Approximate burn time is 1 hour and 40 minutes with an 8oz. can of butane fuel.