High impact ABS material. Automatic darkening welding filter with lampshade. Whole process protection of ultraviolet and infrared. Powered by solar battery, no need to replace the battery. Power turns on and off automatically. Return delay time: 0.2S. Light-colored light: Din4#. Dark state color number: Din11#. Size: 108mm/4.25"×50mm/1.97". Window: 90mm/3.54"×32mm/1.26". Quantity: 1