Feature: 1. Solar Powered Auto Darkening Welding Helmet: Always protect your eyes from harmful UV and IR radiation, keeping you away from intense light. Auto darkening filter switches from light to dark in 1/30000s. Suitable for TIG MIG MMA applications with ion and grind features. Long battery life with solar technology and eco friendly CR2450 lithium battery lasting up to 5000 hours. 2. Face Shield Bottom Edge with Fluid Design for Better Skin Fit: Designed for better skin fit, providing a more comfortable wearing experience. Auto darkening screen visible range is 100x93mm. External control with stepless adjustment. Wide operating temperature range from ‑5°C to 55°C. 3. True Color Lens to Prevent Dark Vision When Not Working: The true color lens prevents dark vision when not working, ensuring clear vision at all times. 4 light sensors and grinding function along with solar and CR2450 button battery power supply. 4. Built in Low Battery Alarm Function: Features a low battery alarm to remind welders in advance to prevent eye injuries due to sudden power loss. 5. Long Delay Time and Switch Time for Efficient Work: Delay time ranges from 0.1‑0.8s, and switch time is less than or equal to 10000s, ensuring efficient work performance. Compatible for various welding applications with its dependable functionality and design. Specification: Item Type: Welding Helmet Material: PA PP Model: LY800H Auto Darkening Screen Viewing Area: Approx. 100x93mm / 3.94x3.66in Adjustment Method: External Control, Stepless Adjustment Operating Temperature: -5°C-55°C Number of Light Sensors: 4 Grinding Function: Yes Power Supply: Solar Energy and CR2450 Button Battery Delay Time: 0.1-0.8s Switching Time: ≤10000s Battery Type: Button Battery Battery Model: CR2450 Button Battery x1(Built in) Battery Capacity: 600mAh . Package List: 1 x Helmet 1 x User Manual 1 x Headband