180° LARGE VIEWING SCREEN - Enjoy a wide field of view of 3.94" x 7.06", including a 3.94" x 3.66" auto-darkening screen (DIN 16) and two non-auto-darkening 3.94" x 1.70" side views (DIN 5). The full-vision range around the welding area enhances your welding accuracy and control. FASTER AUTO DARKENING - The helmet is equipped with 4 advanced sensors, switching from light to dark in 1/25000 seconds, protecting your eyes from harmful rays during welding operations. It is the ideal choice for TIG/MIG/ARC weldingand grinding. Light state: DIN 4, Dark state: DIN 5-9/9-13. LONGER SERVICE LIFE - The welding mask is equipped with two solar panels on the front and two CR2450 lithium batteries on the back, providing a working time of up to several years, with enhanced durability. EASIER ADJUSTMENT - The welder helmet features a newly upgraded knob section, allowing for easy adjustment even while wearing gloves. The interior of the helmet has been rearranged for a better fit to the human head, ensuring comfort even during extended wear. BEST EYE PROTECTION - This welding hood features a 12-in-1 smart filter, with automatic DIN 16 ultraviolet/infrared protection, effectively filtering harmful light to protect the eyes and adapt to various environments. GREEN MATERIAL - Made from eco-friendly PP materials. Tests show an operating temperature range of -5°C to 55°C, a storage temperature range of -20°C to 70°C, a tensile strength of up to 120 MPa, and a flexural modulus of up to 4000 MPa, ensuring enhanced flexibility for welding helmets. ARCCAPTAIN Super Large Viewing Welding Helmet with SIDE VIEW, True Color 1/1/1/1 Solar Power Auto Darkening Welding Hood with 4 Arc Sensor, Wide Shade 4/5-9/9-13 for TIG MIG ARC CUT, Skeleton