1.Solar product protection,potentiometer adjust, adapt to TIG MIG 2.Light to ... ,000s 3.Viewing area: 98*48mm 1. Model of Solar product protection:EH-400/EF9848.2. Fire resistanc: yes.3. Material ... , two lithium batteries be changed.10. Switching time of Solar product protection:a) Light to dark: 1/25,000s Steplessly adjustable ...