Solar Powered Auto Darkening Welding Helmet ARC TIG MIG MMA Metallic Blue Finish Viewing Area: 3-7/8" x 1-11/16" Square Super Fast Darkening Speed: 1/25,000 Second Dark Shade Range: Adjustable 9 To 13 Bright To Dark State Eye Protection: EN379 1/2/1; Face Protection: EN175 Power Supply: Solar Cell & Lithium Batteries