This Solar Auto Darkening Welding Mask Helmet Filter Lens Welder is the high quality Solar Auto Darkening Welding Lens with function of solar charging and fully automatic ON/OFF, very convenient to use and efficient. Major impact resistant PP material, safe and easy to use. Features: Automatic welding lens filter with solar charging function and auto darkening. Process protection global against UV and IR with adjustable sensitivity and delay time. Variable shade (DIN) from DIN9 to DIN13 can be adjusted by turning a knob of the shade. Solar energy and the energy can turn on and off automatically. With low battery indication, replaceable battery and lens test button to test if the lens can work normally. High clear filter with high quality LCD screen and interference from Multi-layer optical filter. Serves in the viewing window of most standard welding helmets. Features: Material: LCD PP+ Black color LED Status: DIN 4 Dark State: From 9 DIN to DIN 13 (free external adjustment) UV / IR protection: 15 levels Switching time (light to dark): 1/10000s (Normal Temp) Delay Time (Dark Bright): 0.2s adjustable Grinding / Welding: Bracket Power supply: Solar cells and lithium battery (replaceable) Battery: 1 * CR2032 3V 320mAh lithium battery (included) Power on/off: Fully automatic Sensitivity (depending on current size when welding): adjustable, low / high Arc sensor: 2pcs Eye protection: EN379 1/2/1 Face protection: EN175 UV transmittance: 313nm0.00006% 365nm0.00006% IR transmittance: 780~1300nm0.003% 1300~2000nm0.009% Application: MIG / TIG / argon arc / arc welding / gas welding Operating temperature: -5~55 (23~131) Storage temperature: -20~70 (-4~158) Active Viewing Area: 92*42mm Solar battery area: 98*18mm Cassette Filter Size: 110 * 90 * 9mm / 4.33 * 3.54 * 0.35in Filter cassette Weight: 107g / 3.75oz Package Size: 11.5 * 9.1 * 3.5cm / 4.53 * 3.58 * 1.38in Package weight: 107g / 3.77oz Package List: 1 * Welding LensNote: The data are all manual measurement , please allow 1-3cm error; due to the difference in light and display, there would be a certain color difference, please refer to the actual object received.