Lincoln Electric VIKING 1840 Black Welding Helmet with 4C Lens Technology - K3023-3 Price For: Each Includes: Helmet Bag, Bandana, Lenses and Decal Sheet Features: 4C(TM) Lens Technology, Optical Clarity, Wide Screen View ADF Controls: Knobs Number of Arc Sensors: 2 Color: Black Grind Mode: Yes Battery Type: Solar Cells Lens Shade: 9 to 13 Viewing Area: 3.74" x 1.38" Welding Helmet Material: Nylon, Polycarbonate Graphics: None Welding Helmet Light State: Not Rated Headgear: Ratchet Welding Helmet Color: Black Welding Helmet Type: Auto-Darkening Series: FE3200 Electromagnetic Sensor: No Power Source: Solar Switching Speed: 1/25, 000 sec. Item: Welding Helmet Country of Origin (subject to change): China