Auto-darkening solar welding helmet - professional TIG/MIG/grinding - eye protection for DIY projects

Features:1.Adjustable sensitivity and delay time; grinding and welding modes can be selected.
2.Effectively protects your eyes, face, and head from injury caused by sparks, splashes, and harmful radiation.
3.Made of high-intensity, lightweight, flame-retardant material; safe to use.
4.Automatic darkening when you start working; fast response from light to dark in less than 1/25,000 of a second; darkness levels are adjustable.
5. With the delay, your eyes won't be hurt by the remaining arc, making it much safer.
Specifications:Material: PP Color: Gray Light state: DIN 4 Dark state: From DIN 9 to DIN 13 (external setting) UV/IR protection: 15 levels Switching time (light to dark): <1/25000 s (normal temperature) Delay time (dark to light): 0.15 s to 0.80 s adjustable.This welding helmet is not suitable for laser welding and oxyacetylene welding.
2. When stopping welding, the filter screen automatically switches from dark to light state based on your delay time setting. (By turning the time adjustment switch to the "MIN" position, it can then vary from 0.1 s to 0.3 s. By turning the time, setting the switch to the "MAXIMUM" position, it can then vary from 0.6 s to 0.8 s)
3. Uses high performance solar cells as power supply and has 2 built-in 3V Li batteries as backup power. No battery changes are required and battery life reaches a new limit. Under normal welding conditions, users can expect a battery to last in excess of 2 years.