Specification Full range UV/IR protection up to shade DIN 16 all time Solar powered auto-darkening filter helmet Auto switching time: light to dark is 1/25,000 Seconds Darkness shade control (DIN) from 9-13, Clear shade 4 in full conformity with CE and ANSI Z87 standards Charges with exposure to welding or sunlight Operation Temperature: -5 degrees C ~ 55 degrees C Full face coverage Viewing Area: 92mm x 42mm BRAND NEW ANSI STANDARD UV & IR PROTECTION SHADE RANGE: DIN 4 / 9 - 13 AUTOMATIC, LIGHTNING-FAST REACTION & RECOVERY TIMES USE FOR ARC, MAG, MIG, MMA, STICK & TIG WELDING, OR PLASMA CUTTING ADJUSTABLE SHADE CONTROL RATCHET ADJUSTABLE HEAD-STRAP TOUGH SHELL