Jackson Welding Helmet, Hellfire Graphics, Variable ShadeModel Number: 47101CE Classification: 1/1/1/1Viewing Area: 3.94? x 3.64?Filter Dimension: 5.25? x 4.5?Lens Shade: 3/ 5-9 9-13Light State: 3Shade Control: SteplessSensors: 4On/Off: AutomaticPower Supply: Solar and Replaceable 2PCS CR2032Switch Time: 1/20,000 of a secondSensitivity Control: Inside Stepless Delay time (dark to light): Inside Stepless, 0.15-0.8SGrind Mode: YesLow battery indicator: YesTrue Color: YesLow TIG amps rated: ?2AOperating Temperature: -10C- 65C(14F-149F)Storing Temperature: -20C- 85C(-4F-185F)Packaging: 4 Color Retail Box with Outer Shipping BoxStandard Certifications: ANSI Z87.1, CAN/CSA Z94.3 standards. CE certifiedHeadgear: 26091 370 Headgear