Suitable for most kinds of welding mode.When arc is struck， Auto- darkening Filter will turn from clear state to dark state， response time is less than 1/10000S.With non-grade adjustable shade number from DIN9-DIN13The high performance of Auto-darkening Filter provides to the user’s eyes and face a full protection against UV and IR radiation during the entire welding process，even in the clear state.Delay time fast or slow can be selective.Sensitivity adjustment : you can according your working conditions，adjusting sensitivity(low or high) of the darkening filter.at the MIG welding or other small electric ARC welding can choose high sensitivity.Specification : Filter cassette size : 110 x 90 x 8.5mm (4.33" x 3.54" x 0.33")View window size : 93 x 43mm.(3.62" x 1.65")UV/IR protection : Up to shade DIN 15Clear state Shade No : DIN 4.8Number of arc sensor : 2Dark state Shade No : DIN9-DIN13 stepless adjustmentSensitivity : low or high can be selectivePower supply : solar cells，Nobattery change requiredPower on/off : Fully AutomaticResponse time : A) Clear to dark : <=1/10000S B) Dark to Clear : 0.1-0.8SWork temperature : -10-+55℃Storing temperature : -20-+70℃Package included : 1 x JSS200W Solar Auto Darkening Welding Helmet lens