I'll let you know after I install them. 2 each on late model Suburbans, 3 each on brand new Ram commercial vans and 2 each on Kentucky 53' box trailers. Waiting on the project leaders to say "go." With that many for our emergency/support type of vehicles, they must've already proven themselves. I hear some of our trouble shooters have them installed but they need to foot the bill themselves. Needless to say, mobile versions.
