If you buy this torch,You will never regret. This is really good quality torch.Use high quality gasone butane gas, Turn the adjustment know to control the gas output according to different applications, For working efficiently set the inner blue flame of the burner to 1&1/2 to 2 inches in legth. Self-Igniting Piezo Igniting & Safety Adjust able Flame. Anti-Flaring Design. Temperature up to 1300 degres C. Work on Pure Butane Cylinder. Butane gas not include.