Auto-darkening welding helmet which switches from a light to dark state when welding activity starts. Light state is DIN 4; Dark state is adjustable from DIN 9 to DIN 13 using the external knob. Response time from light to dark state is 0.04 milliseconds; return from dark to clear state in 0.03-0.04 sec. Power is supplied by solar cells with 2 built-in lithium batteries to offer power back-up for longer service life. No need for replacement batteries..CE certified.Retail box.Wheel ratchet size adjustment.Suitable for a wide range of applications.Suitable to be worn with disposable respirators.Solar cell power with two built-in lithium back-up batteries and a working time of over 5000 hours.Auto-darkening switches from light to dark when the welding process starts.Superior optical quality LCD filter
REF: PW65
