filter lens of Auto Darkening Welding Helmet Shade

Specifications: Switch Time 1 millisecond Delay time 0.2s from dark to light state DIN shade NO Fixed at shade 3 when light at shade 10.5 when dark Ultraviolet/ InfraredProtection to shade 13 at all time Power supply Solar Cell with Lithium Battery(no power switch) Operation temperature -10°C (23F) + 60°C (140F) Storing temperature -20°C (-4F) + 70°C (158F) Panel dimension 109*51 mm (4 1/3 * 2”) Viewing area 90*34 mm (3 1/2 * 1 1/3”) Weight 48g