Field of View Window: This welding lens features a field of view window that provides clear and larger viewing angles, reducing eye fatigue. Solar Panel: The solar panel is integrated with the welding helmet's battery, which can extend the helmet's lifespan. High Sensitivity: The automatic solar-powered darkening welding lens has a sensitive arc sensor, which is stable and reliable. Fast Response: This welding lens has a fast response time and provides better protection for welders. Prevents Sexually Transmitted Diseases: This automatic filter can be well protected at work to prevent occupational diseases. Color: black Material: PA Size: 110 x 90 mm Package Contents: 1 x welding helmet lens Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.