Optical rating: 1/1/1/1 View area: 100x67 mm main window Sensors: 4 Light State : DIN 3 Dark State(DIN):DIN 5-9 / 9-13 UV / IR Protection: Up to DIN 16 TIG capability: >=2 amps Switch Time(light to dark):0.04ms(1/25.000Sec) Grind mode:Yes,Inside Shade control: Outside & Stepless Sensivitity Control: Outside & Stepless Delay control (dark to light):Outside & Stepless,0.15-0.80s Material of helmet:Nylon Weight: 560 gr Power Supply: Solar Panel & Repalceable Lithium battery 2xCR2450 Packaging and shipping