Description : <br>  <br> Solar Auto Darkening Welding Helmet Mask TIG\/MIG\/ARC Welder Machine  Viewing Area : 98 x 55mm Size of Cartridge : 110 x 10 x 9mm Arc Sensor : 2 Light State : DIN4 Dark State : Variable shade 9-13 Shade Control : Internal ， variable Power ON\/OFF : Fully automatic UV\/IR Protection : DIN16 Power Supply : Solar cells， re-chargeable battery， no battery change required.  Switching Time : 1\/15，000s from light to dark Dark to Light : 0.25-0.45s at fast position， 0.65 - 0.85s at slow position Operating Temperature : -5 C to +55 C Helmet Material : PP (fireproof)<br>  <br>   <br>   <br> Package includes :  <br>  1 x Auto Darkening Welding Helmet 1 x User's Manual  <br> Details pictures :