... marked *View area 98x40mm *Solar cell with Lithium cells Auto-darkening Welding Filter1),Filter size: 110 x 90mm2),Viewing area:98x 40mm3),Light shade ... Lithium cells9),Replaceable Inner and Outer protective lens covers10),Auto power on/off: Full automatic 11)Suitable for ARC ... Cutters.12),Switching set for less than 20Amps TIG welding.13),Working temperature: -5degree~+55degree14),1 year guarantee15), ...