Solar Auto-Darkening Welding Filter Lens 2-PackVariable Shade Horizontal Filter Mask Lens Automation Filter Shade Eyes Lens Helmet Filter Shade3/11 4 inch X 2 inch

Features: Automatic ON/OFF easy and safety to operate. It fits all standard welding helmet window opening. High clear view filter Use high standard of LCD and multilayer optical interference filter. v You will have a good protection with it at working and precent occupational disease. Specifications: Light State:3 Variable Shade:11 Power Supply: Solar Cell, 1 pcs Li-Mno2 Rate of UV transmittance: < 0.0001%(210-365nm) Rate of IR transmittance: < 0.01%(780-2000nm) Package Includes: 1 x Auto Darkening Filter Lens