True Color View & Better Clarity:The TRQWH welding helmet features advanced true color technology with top 1/1/1/2 optical clarity, restoring every detail of working conditions. It offers a wide field of view for enhanced vision and comfort. Additionally, this welding helmet is equipped with a USB port for a rechargeable LED light, enabling easy welding even in dark environments. Ultimate Eye Protection:This high-end auto-darkening welding helmet switches from light to dark in 1/20000 sec when arc light appears. The lens, made of double liquid crystal layers and an optical coating filter, resists 99% of harmful light, providing excellent eye protection. It meets ANSI Z87.1/ EN379 CE/ CSA Z94.3 standards. Adjustable Sensitivity & Delay:With external knobs for delay and sensitivity settings, this helmet suits different environments and tasks. The light level of the filter is DIN4, and the transition time from dark to bright is adjustable between 0.2s and 1.0s. An external grind button allows quick switching between weld and grind modes without removing the helmet. Comfortable & Durable Design:The helmet features adjustable, fatigue-free headgear for balanced comfort. Its ergonomic design includes a thickened sponge forehead for injury protection. Side knobs adjust the angle, while a rear knob adjusts headband tightness, fitting various head sizes. Multipurpose Use:Made from high-quality PP material with solar and replaceable lithium battery dual power sources, this eco-friendly welding helmet extends battery life. It's suitable for plasma cutting, abrasive cutting/grinding, DC TIG, AC TIG, MIG/MAG, MMA/stick welding, and other workplaces.