It is a Roto Ray. We run them on our rigs at my job. They’re fantastic at catching attention of drivers, especially at night. They’re wired to shut off as soon as the air brake is set so they’re done spinning pretty quickly.Curious about the triple light on the grill.....isn't that like the old "Roto Ray" ?......with all the later type warning lights how come they would opt for a mechanical high profile (sticking out) type of light ?......could this model be that much more efficient or maybe it's nostalgia ?