The LN-25 is powered across the arc by the welding current. What this means is that no control cables are needed. To operate, simply connect the weld cable, attach the work clip, and the LN-25 is ready to weld. This portable unit is designed for MIG or flux-cored wire feeding. The totally enclosed case accepts 10-44 lb. wire packages for welding versatility. The LN-25 features a tool-less quick release mechanism for easy changing of the electrode or gun.