What is the difference between green versus grey arc flash faceshield or hood lenses?

What is the difference between green versus grey arc flash faceshield or hood lenses?

Both Oberon green/yellow and new clear True Color Grey (TCG) lenses provide protection from an arc flash incident. A clear grey lens is safer than the old green technology because the likelihood of a worker making a mistake that could cause an arc flash has been reduced.

Oberon’s True Colour Grey is a medium density filter that allows all visible light to pass through it with no distortion. Oberon TCG is a nearly clear lens that provides the same protection as old style green with the difference being workers can finally see the true colours of their work.