The Tigmaster is a lightweight thermoplastic welding helmet made of a high quality flame retardant material and is extremely suitable for welding with high heat intensity. This helmet is designed for comfort weighing only 512 grams with adjustable ratchet head gear and a digital 4 sensor ‘adjustable’ cartridge for vision clarity and protection. Its viewing area measures 98 x 62mm giving you an excellent field of vision. With variable shades from 4 to 13 in three separate functions of weld, cut and grind you would go a long way to find a more versatile helmet. Two CR2032 replaceable lithium batteries and a solar cell keep the helmet operating. 1/25,000th of a second is all it takes to darken once you strike an arc thus reducing any likelihood of arc eye.