Face protection tools for welders

Optics class: 1/1/1/2
Filter size: 133 * 114 * 10 mm
Activity viewing area: 100 * 93mm, 2-layer LCD
Light shade: DIN4
Dark shade: DIN5~9/9~13
Shadow control: external variables
Switching time: 1/10000 seconds
Sensitivity adjustment: stepless adjustment
Delay time: 0.1 second ~ 0.8 second
Lithium battery and solar