I took em apart and put a big neoprene gasket under the mounting flange so no water can get in through the back of the outer cover. But I noticed there are holes in the lamp/lens housing itself - since the lights are on about the same level as they were in the bumper, should I worry about this? Also, how did you mount yours (I did mine vertically - I think I might change them after I see what kind of light they produce)