Features: Safety protection, easy to use, welding protective glasses matched with eye mask. Solar panels for battery life. Two sensitive light probes, highly sensitive. Specifications: Model:YZ01/YZ08/YZ09 Material: PA/PP Size: 108*51*6mm/4.25*2.01*0.24" Windows Size: 90mm*34mm/3.54*1.34" Bright color grade: DIN3 Dark Color Number Rank: DIN11 Variable light response time: 5/10000S Recovery time: 0.2S Power Supply: Lithium Battery/Solar Energy Rated capacity of lithium batteries: 60mAh Working Temperature: -20~65 Number of arc sensors: 2 Infrared/Ultraviolet Protection Level: DIN16 Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. 1 X Welding Helmet Eye Goggles