Optical rating：1/1/1/1
The Biggest View Area：100 x 67 mm
Sensors：4
Light State：DIN 3
Dark State： DIN 5-9 / 9-13
UV/lR Protection： Up to DlN 16
Switch time (light to dark)： <0.04ms Shade control：Inside & Stepless Sensitivity Control：Inside & Stepless Delay control (dark to light)：Inside & Stepless, 0.15-0.80s TlG amps rated：≥2 amps Grind mode：Yes, Inside Material of helmet: Nylon Weight：560g±5% Operating Temperature： -5℃ (23°F)- +55℃ (131°F) Storing Temperature： -20℃ (-4°F)- +70℃ (158°F) Power Supply: Solar Panel & Replaceable Lithium batteries 2pcs*CR2032 Packed by color box