The Lincoln Electric Lincoln Invertec V155 Stick Welder is a compact, inverter-based Stick (SMAW) welder designed for professional maintenance, repair, and light fabrication work. Delivering reliable DC output for electrode welding on structural steel, carbon steel pipe, and common alloys, the Invertec V155-S provides the arc stability and portability that field technicians, maintenance welders, and hobbyists depend on.
Lincoln Electric's Invertec line employs advanced inverter technology to deliver smooth, consistent arc performance at a fraction of the weight of traditional transformer-based machines. The V155-S supports a range of stick electrodes including E6010, E6011, E6013, E7018, and E7024, making it versatile across maintenance, repair, and light structural applications. The U2605-1 is a low-hour factory demo unit carrying Lincoln Electric's performance certification at a substantially reduced price.
- K2605-1 – Invertec V155-S Stick Welder
- U2605-1 – Invertec V155-S Stick Welder, Low Hour Factory Demo Model
- Inverter-based DC Stick (SMAW) output for smooth, stable arc performance
- Lightweight, portable design suited for field maintenance and shop work
- Compatible with a broad range of AWS-classified electrodes: E6010, E6011, E6013, E7018
- Single-phase input power for shop, garage, and light industrial deployment
- Simple, intuitive controls minimize setup time and operator error
- Rugged construction withstands the demands of daily maintenance environments
- Factory demo unit inspected and certified to Lincoln Electric quality standards
- Structural and carbon steel maintenance repair with E7018 low-hydrogen electrodes
- Farm and heavy equipment repair in garage and field settings
- Light pipe fitting and plumbing repairs with E6010 or E6011 cellulosic electrodes
- Technical training and vocational welding education programs
- Fabrication shop backup or portable field Stick welding capability
The Lincoln Invertec V155-S delivers professional inverter Stick welding performance in a package small enough to carry to the job and capable enough to handle daily maintenance demands. For welders who need a reliable, lightweight DC Stick machine without the overhead of a heavy transformer unit, the Invertec V155-S — whether new or factory demo — provides the arc quality and operational simplicity that Lincoln Electric is known for.
Electrode size compatibility depends on the output amperage range of the specific model. Lincoln Electric stick welders in this class typically support 1/16" through 5/32" electrodes (E6010, E6011, E6013, E7018, E7014, and others). Refer to the spec sheet for the minimum and maximum output amperage and corresponding electrode size range.
This depends on the specific model. Lincoln Electric inverter-based stick welders (Invertec series) output DC, while transformer-based machines (AC-225 series) output AC. DC output allows use of a wider range of electrodes including E6010. AC output is primarily used for E6011 and E6013 electrodes. Refer to the spec sheet for output type.
Some Lincoln Electric stick welders also support DC TIG (lift-arc start) welding. This varies by model — check the spec sheet for listed processes. A TIG torch and argon gas supply would be required for TIG welding applications.
Duty cycle at rated amperage is listed in the spec sheet. Lincoln Electric inverter stick welders are designed for efficient, high-duty-cycle operation. Transformer-based machines like the AC-225 are rated for continuous output at rated amperage. Refer to the spec sheet for the duty cycle curve.
Yes — this is a factory demo or low-hour unit sourced directly from Lincoln Electric. Units are mechanically sound and may show light cosmetic marks from display use. Contact WeldingMart for information on remaining manufacturer warranty for your specific unit number.