Hey Lake the reason I put the light on top of the cab and not under the lip is the angle of the LED's they are pointing up at about a 10-15 degree's I had a friend help me and we powered up the light and he held it at the angle under the lip and at eye level it wasn't as bright as on top where it sets level. Most of the mini cars, vans and suv's set low to the ground these days, so that was the deciding factor of placement. However it does look better under the lip, if I could have got it to sit at eye level I would have put it there. But this is about safety so that's the poop on that. And I sealed it from water using o-rings on the screw heads,made a gasket from an old inner-tube using a x-acto blade so it can be removed easier. I don't think it looks all that noticeable, but that's one for the opinion poll. If an administrator or someone would like to move these post's to the third brake light thread you have my ok cause I don't know how to do it. Thanks for the heads up John....Vernski