Viking 1840 Series The Viking 1840 Series, our mid-range auto-darkening helmet tier, offers superior 4C optics with a versatile user interface and premium external controls to increase productivity. This helmet includes our exclusive 4C lens technology and 1/1/1/1 optical clarity for industry leading optics and provides an expanded variable 7-13 shade range and low profile external grind control. The digital user interface has moisture and abrasion resistant push button LED UI controls that allow for intuitive adjustments for precise performance. The upgraded 4-point pivot headgear features a soft, padded headband to help eliminate pressure points, while two top head straps evenly distribute weight for all-day comfort. 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. A Vision For Better Welds 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. Features: Enhanced Safety New optic test functionality and UV/IR DIN 16 lens safeguard5 Year Warranty Protects your investment for 60 months from date of purchaseExternal low profile grind control that makes switching between weld and grind modes easy, which increases productivity, prevents accidental activation and provides enhanced application versatility4-point pivot headgear combines two adjustable top head support, soft front headband, polymer backpad, orientation adjustment pin and simple ratchet tightening mechanism for a personalized, secure fit.7.0 sq. inch (3-3/4" x 1-7/8") wide viewing areaReplaceable CR2450 batteries ensure increased battery lifeWelding helmet is hard hat and cheater lens compatible and provides enhanced outdoor performanceWelding Helmets Headgear Type: PivotWelding Helmets Cartridge Size: 5-1/4" x 4-1/2"Welding Helmets Cheater Lens Compatible: YesWelding Helmets Hard Hat Capable: YesWelding Helmets Light to Dark Switch Time: 1/25,000sWelding Helmets Magnifying Lens Holder: YesWelding Helmets Number of Sensors: 4Welding Helmets Quick Adjust Ratchet: YesWelding Helmets TIG Rating: 2-5 Amps Included: (1) Helmet(1) Helmet Bag(1) Bandana(5) KP3043-1 Outside Cover Lenses(2) KP2897-1 Inside Cover Lenses(1) Decal Sheet.