An animation demonstrating the arc length of a welding type tool emitting heat.  A demonstration of the tool emitting heat in real time.  A graph illustrating the Long Arc of the tool documenting Voltage and Amperage.  The tool is shown in real time emitting heat with a photo of a welded material.  A graph illustrates Short Arc with the Voltage and Amperage documented.  A man in a blue coat and orange gloves uses the arc tool.