You still need to remove the end cap and pop one of the modules out and look at it. The label has no useful info, I should of specified that their might be a label on the light modules. Looking at the module between the lens and housing you should see a gasket to seal it. If their is no gasket then it's an interior model. The power leads coming out of the back of the light would also be sealed, though they could also be with an interior module.