Miller # 231405 American Eagle II auto darkening welding helmet. Pro-Hobby Series Shade Type Variable shade#8 - #12(light state #3) Viewing Field 1-9/16" x 3-7/8"(40 x 97 mm) Lens Speed 1/12000 second Lens PowerControl Manual-OnAuto-Off Grind Mode No Sensitivity Control Internal Adjustment Delay Control Slow / Fast Arc Sensors 2 arc sensors TIG Rating 20-amp TIG rating Power Supply Replaceable alkaline batteries (2)2000 hrs Cover Lens Front #231411 Inside #231410 Weight 16 oz (454 g) Warranty 2 year limited[]