FEATURES

This Helmet is ANSI and CE Certificated welding helmet ( They are not like other sellers' similar products without ANSI or CE Certificated Helmet).  Please check the Attached Certificate for this high risk product and use them with confidence. 

• Viewing Area: 3 3/8" x 1 5/8"
• Solar powered auto-darkening filter helmet 
• Auto switching time: light to dark is 1/30,000 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, Full range UV/IR protection up to shade DIN 16 all time 

Function features: 

• sensitivity knob for you to control easily 
• " Grinding " can be selective by switch
• time delay switch for you to control switching time from darkness to light
• outside darkness shade level knob