KP3779-1 - Lincoln Viking 2x4C Auto-Darkening Lens Fixed Shade 11

High-Performance Optics in a Compact Package

The Lincoln Electric KP3779-1 VIKING 2x4C Auto-Darkening Lens is engineered to provide superior optical performance for welders utilizing standard 2" x 4.25" helmet cartridges. This fixed Shade 11 lens is a direct replacement or upgrade for most pipeline and pancake-style welding helmets, offering a significant leap in visibility technology. At the core of this lens is Lincoln's proprietary 4C Lens Technology, which broadens the color range and eliminates color saturation. This results in a crystal-clear view of the arc and puddle, minimizing blurriness and distortion that can compromise weld integrity. With an optical clarity rating that rivals the best full-size helmets on the market, this compact cartridge ensures you never miss a detail.

Technical reliability is a key feature of the 2x4C Series. The lens is equipped with two independent arc sensors that provide consistent switching response, even in obstructed environments. It boasts a low-end TIG rating of 5 amps, making it versatile enough for precision DC TIG work as well as standard Stick and MIG applications. The unit is fully solar-powered, utilizing a combination of atmospheric light and the welding arc itself to maintain charge, removing the need for battery changes and reducing downtime.

Physical robustness has also been addressed in the design of the KP3779-1. The cartridge thickness is optimized at 0.20 inches, ensuring a secure fit in most retaining systems while allowing space for cheater lenses if required. The lens housing is manufactured from high-grade, high-temperature ABS plastic. This material choice prevents the warping and heat-related failures often seen in lesser quality cartridges when exposed to reflected heat in tight welding joints. With a fixed Shade 11 for welding and a clear Shade 3 for inspection, this lens offers the perfect balance of protection and productivity for the professional welder.