Astro Solar Auto Dark Welding Helmet

Specifications:
Ready to use out of the box.
Lens changes from clear to dark in 1/20,000 second.
Variable shade adjustment - 9-13 DIN
Operator adjustable delay from dark to clear state.
Full face and front neck protection.
98mm x 38mm viewing lens area
Utilizes performance solar cells as power supply and has 2 built-in 3v lithium batteries as power back-up.
Under normal welding conditions, users can expect a battery life of more than 6 years.
Meets ANSI standards Z87.1