Jackson EQC Journeyman Series Welding Helmet Features: *Entry-level auto-darkening filter. *2"x 4" cartridge size w/approximately 4 sq." viewing area. *Variable shade (9 to 12) HTLS (High Transmission Light State) shade 2.75 in the clear state. *"On" switch with auto-off feature automatically turns the unit off after approximately 20 minutes of non-use, comes installed in the Shadow welding helmet. *Made in the USA. *Meets ANSI Z87.1+ standards.