Auto Darkening Welding Lens | 2" x 4 1/4" x 0.2" | 2.5/10/11 Shade Adjustable Lens for Welding Helmet with True Color Filter | Battery-Free Filter Replacement | Fits Mask 2x4 1/4 Inches Welding Hoods

Press the "SET" key to select Auto-darkening shade 10, Auto-darkening shade 11, Fix Shade 10, Fix Shade 11 in sequence. The corresponding LED indicator lights are the green light at the top, green light at the bottom, red light at the top, and red light at the bottom. When selecting Fix Shade function, the screen will darken. After 30 minutes, ADF will return to auto-darkening function. In Fix Shade function, ADF will also return to auto-darkening function after entering a dark environment for a few minutes. View Area: 98 x 35mm/3.86" x 1.38" Cartridge Size: 108 x 50.8 x 5mm/4.25" x 2.0" x 0.2" Weight: 1 Ounce Light Shade: 2.5 Optical Rating: 1/1/1/2 Sensors: 2 Independent Wide Range Photo Sensors Solar Power, No Need To Change Battery, Completely Automatic, No Switches Or Buttons To Turn On

• Instant Auto-Darkening Technology - Reacts in 0.0005 seconds to welding arc
• Press the "SET" key to select Auto-darkening shade 10, Auto-darkening shade 11, Fix Shade 10, Fix Shade 11 in sequence. The corresponding LED indicator lights are the green light at the top, green light at the bottom, red light at the top, and red light at the bottom.
• When selecting Fix Shade function, the screen will darken. After 30 minutes, ADF will return to auto-darkening function. In Fix Shade function, ADF will also return to auto-darkening function after entering a dark environment for a few minutes.
• High-definition lenses can block or absorb more than 99.99% of infrared and ultraviolet rays, which allows us to easily carry out various welding work.
• Its Light Shade state is 2.5, which allows us to clearly observe the working area.
• Two wide range photo sensors are built in with higher sensitivity, which enables the lens to detect an arc strike and trigger the LCD into its dark shade in less than 0.5 milliseconds.
• The battery does not need to be replaced. Every time you strike an arc the solar panels will charge the lens right back up!