The Vevor auto-darkening welding helmet is designed to provide a clear, natural view with true color technology and a large 3.94" x 3.15" viewing area. It features 4 arc sensors and a fast 1/20000 second response time to help protect your eyes during welding, cutting, and grinding. Adjustable DIN 4/5-9/9-13 shade settings make it suitable for multiple applications. Solar charging support and replaceable lithium batteries provide reliable long-lasting power. Its heat- and impact-resistant construction helps shield your face and eyes from sparks and high temperatures.