·Cartridge Size: 110X90X9 mm ·Viewing Window: 98X52 mm ·Switch Time:(light to dark)0.1ms (dark to light) ≤ 0.2- 1 S ·Ultraviolet Protection: < 0.0003%(313 nm), < 0.006%(365 nm) ·Infrared Protection: < 0.01%(780- 2000nm) ·Shade Range: DIN 4 / 913 ·Power: Solar Cell (No battery changed) ·Weight: 500g ·Operating Temperature: - 5 to +55