Lightning Skull Auto Darkening Welding Grinding Helmet Welder Mask Mig Tig Solar Full range UV/IR protection up to shade DIN 16 all time AUTOMATIC, LIGHTNING-FAST REACTION & RECOVERY TIMES Darkness shade control (DIN) from 9-13, Clear shade 4 "Grinding" can be selective by switch in full conformity with CE and ANSI Z87 standards