Viewing Area: 90 35mm Cartridge Size: 110 90 10mm Arc Sensor: 2 Light State: DIN 4 Dark State: Fixed shade 10 Shade Control: Unadjustable Power On-Off: Fully Automatic Sensitivity Control: Unadjustable, Auto UV/IR Protection: DIN 16 Power Supply: Solar cells. Re-chargeable battery. No battery change required Switching Time: 1/5000S,from Light to Dark Dark to Light: 0.15-0.45S Auto Operating Tep:-5C – 55C Storing Tep:-20C – 70C Colour: black, yellow Type: Welding Helmets Brand: Ingco Sub Type: Face Shields