Miller® Classic Series, Liberty™ - Features ClearLight™ Lens Technology, Auto-darkening filter that allows varying shades ranging from 8 - 12 and light shade is 3. Two independent arc sensors supports 1/10000 sec lens speed. It features sensitivity and delay control. It is lightweight, comfortable and offers unsurpassed light-state clarity and exceptional battery life. It comes with magnifying lens holder, extra protective lens and a adaptable hardhat. It has a rechargeable solar cell and a TIG rating is 20 A. It extends a large viewing area of 5.15 sq.in and comes with a manual on/auto-off circuitry..