Check the listing for details. KRK Auto Darkening Welding/grinding Helmet w/ sensitive & delay time control. Condition: New. Listed at 25.99 USD. 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: 3.62" x 1.66" 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 SOLAR RECHARGABLE, INTERNAL LITHIUM-ION BATTERY CELLS Function features: sensitivity knob for you to control "Grinding" can be selective by switchtime delay switch for you to control switching time from darkness to lightoutside darkness shade level knob if you need to order the extra front or inner covers, please go to our ebay storeand choose what you want, then pay them together.