True Color Viewing: Featuring a 3.66" x 1.69" (93 x 43 mm) large viewing screen, upgraded true color technology and 1/1/1/1 optical clarity, the VEVOR welding helmet gives you a clear, sharp, natural view for safer and more precise welding Lightning-Fast Auto Darkening: Equipped with 2 smart arc sensors, our welding hood automatically darkens in just 1/20000 seconds—filtering out harmful and intense light, reducing arc glare, enhancing visual clarity and eye protection Adjustable Shade Range: Our true color welding mask features adjustable DIN shade levels — DIN 4 (Grind Mode) and DIN 9–13 (Weld Mode). Easily switch between working modes to enhance efficiency and safety during welding, grinding tasks Perfect Fit: Featuring an adjustable top strap, along with width and angle adjustment knobs, this welding helmet offers a personalized fit and comfort. Made from heat- and impact-resistant materials, it effectively blocks flying sparks to protect your face and eyes Solar-Powered: This auto-darkening welding helmet features 1 lithium battery and supports solar charging, eliminating the need for frequent battery replacements. The stable power supply ensures consistent, long-lasting performance