The VIKING 2450, the latest evolution in our mid-priced auto-darkening helmet line, provides the best optical clarity available in a welding helmet today. The 2450 Series offers an improved headgear for greater comfort and flexibility.The new 4C ADF Technology improves the performance of the lens in the 4 most important categories to the welder: Clarity - Optical Clarity 1/1/1/1 Color - Real Color View Carat - Light Weight Cut - Even Shade From Any Angle The 4C Lens Technology upgrade to Lincoln Electric’s VIKING welding helmets improves visibility and reduces eye strain by minimizing the traditional lime green coloring in the helmet view screen. 4C technology is ideal for a range of industries such as general fabrication, power generation, shipbuilding, structural, offshore and pipeline that use multiple welding processes, including Stick, MIG and TIG. Whatever the task at hand, 4C technology gives you a clear view to productivity and quality.Better Clarity, Real Color View Now you can make a good view even better. Upgrading with 4C technology preserves the existing 1-1-1-1 optical clarity rating, but improves visibility by reducing the lime green tint. Easy On The Eyes Improved visibility and less eye strain means greater comfort for the welder. This combined with an improved view of the weld puddle adds up to better welds. Wide-Screen View 4C technology enables you to not only see better, but also see more. The large viewing area gives you a full range of vision in relation to the welding area, which enhances operator control. Increased Battery Life The longer you can see clearly, the more you can weld. And more welds mean higher productivity. Improvements to the ADF’s circuitry enables more performance from the battery. Now you can keep welding, increase your productivity and get more from your helmet lens.