The GYS LCD Expert 11 welding helmet is a semi-professional automatic welding helmet designed for MMA, TIG, and MIG-MAG welding applications. This model features an advanced LCD lens system that switches from light to dark within 0.5 milliseconds, providing immediate eye protection from welding arcs. The transition is controlled by two light sensors that detect the arc ignition with exceptional speed and reliability. The helmet primarily operates on solar energy, ensuring consistent performance without frequent battery changes. The viewing area measures 100 x 49 mm, offering a generous field of view with complete UV/IR protection according to DIN 15 classification 1/1/1/1. The lens provides a clear shade of 3 in the light state and darkens to shade 11 for welding tasks. The return transition from dark to light occurs within 0.35 seconds, allowing for an efficient workflow between welds. Made from durable plastic materials in a black finish, this helmet weighs 470 grams for comfortable long-term use. The dual light sensor system enhances reliability under varying lighting conditions, while the solar-powered operation reduces maintenance efforts. Suitable for welding currents from 10 to 200 amperes depending on the process type, this helmet meets professional standards for personal protective equipment in welding environments. The combination of fast switching technology, generous viewing area, and solar-powered operation makes this helmet a practical choice for semi-professional welding applications where eye protection and visual clarity are essential considerations.