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(favorite) Fire irradium:
The fire lenses are over all pretty good lenses. They let only a small amount of light through. Something around 16% of light.
On a blue bird day they are possibly the best lenses iv'e ever had.
They are surprisingly they are not too bad in low light but not full site.
Very bad for white out days because of the darkness.
Not good for night.
looks very steezy
Black irradium: these are a little bit less dark.
still perfect for high light conditions.
not as dark as the fires so they are a little better for low light days. still not good for white out days.
Not good for night.
(favorite) Dark grey/ grey polarized:
basically the same lens so i think that they can be reviewed together. The difference is that the polarized have a very thin clear coating on the front blocking close to 100% of all uv rays. I guess it will help your eyes in the long run but these are 70 and the regular dark grey is only 40.
They are both an all around good lens.
Both good in high and low light conditions.
Also looks great.
although still not good for night.
There are some more great lenses but these are some i have/ used so these are personal and true reviews. not guesses.
PS: i would not get the permission lenses unless you only ski white out days.
And for night lenses, the best is clear. most vision especially because it has no tints.
The H.I. yellow is good too for night.