Automatic darkening filter for handheld welding helmet C-10 1 piece

This is an automatic darkening filter that is attached to a handheld welding mask. The handheld surface can easily be used as an LCD screen. This significantly improves safety and efficiency during welding work. Automatically switches from #3 light blocking before arc ignition to #11 light blocking after arc ignition. Size (mm): 108 x 51 x 5 Field of view: 92 x 36 mm Shading level: Before work/#3, during welding/#11 Response speed: 1/3000 sec., return speed: 0.4 sec. Weight: 42g Compatible current range: 30 to 300A Power source: Solar cell, built-in battery Accessories: 2 transparent cover plates ANSI standard product