Firstly, the glasses have a large polarization. And make a dark situation appear brighter. Because the design contrasts so strongly with the eye. I have a much more expensive set of these low light goggles and love them for Fitch, Dusk and Dawn. They are Costa brands. I live with them but I will not use them under any machine working in my wood shop. Enter this set! Works just like my $250 Costa set but I'm not worried about them breaking. The kit also includes a visor clip, cleaning cloth and polarization test card. I hope that was helpful.
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