Premium Optics – The 1840 Series welding helmets feature the exclusive 4C lens technology, which creates a crystal clear, true color view of the arc and puddle. This enhances your control and increases weld quality, while reducing eye strain. Additionally, the 1840 Series lens has a 1/1/1/1 optical clarity rating, which showcases the absence of common lens imperfections, such as blurriness and distortion, while also providing consistent brightness and performance at an angle. Digital User Interface – Simple and durable moisture and abrasion resistant push button LED controls make it easy to set the shade, sensitivity, delay, and mode for precise and consistent performance. Additionally, LED indicators for mode and low battery allow for improved productivity. Switching Modes Made Easy – The left side of the helmet features an industrial low-profile button that connects to the auto-darkening lens. Press and hold for 3 seconds to switch between weld and grind modes. All Day Comfort – 4-Point Pivot Headgear offers a soft, padded front headband to help eliminate pressure points and absorb moisture and two top head straps that evenly distribute weight. An orientation adjustment pin allows you to set the optimal resting position, and a simple ratchet tightening mechanism provides a comfortable, secure fit. Industry Leading 5 Year Warranty – Comes with a hassle-free 5 year warranty from your date of purchase to protect your investment › See more product details