Snap-on's Auto Darkening Welding Helmet (No. YA4609), offers both security and style with its four wide-angle arc sensors and multicolored eagle graphic. The helmet features dual adjustable shade modes (#6-9, #9-13) for sensitivity and delay which can be adjusted with a knob, and a grind lockout feature that doubles as a face shield and welding helmet. Able to be powered with solar energy and lithium batteries, this helmet also includes a 3.73" by 3.34" viewing area and comfortable fit for long hours in the shop.