Portwest Bizweld Welding Helmet with an auto-darkening feature

The handy auto-darkening feature switches from a light to dark state when your welding begins - light state is DIN 4 and dark state is adjustable from DIN 9 to DIN 13 using the external knob.

Impressive response time from light to dark state in 0.04 milliseconds; return from dark to light state in 0.03-0.04 seconds.

Power is supplied by solar cells with 2 built-in lithium batteries to offer power back-up for longer service life.

Features and specifications:

• Wheel ratchet size adjustment for easy fitting
• Solar cell power with two built-in lithium back-up batteries and a working time of over 5000 hours
• LCD filter with superior optical quality
• Auto-darkening, switches from light to dark when the welding process starts
• Can be worn with disposable respirators
• CE certified and UKCA marked
• Conforms to: EN 166 1 S, EN 175 F, EN 379 4 / 9-13 ; 1/1/1/2