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. Choose from six unique graphic designs. With all the features of our standard 2450, the 2450D helmet gives you access to three modes - welding, cutting and grinding - with a user friendly LCD screen digital interface. Just one helmet with one cartridge produces a full spectrum shade 4-13 with variable sensitivity and delay.