Don't hate, but I'm taking the opposite view on lightbars (blue/red is idiotic and illegal btw... I'm talking about amber).
I live in Colorado. Last year, I was constantly getting stares from cops and getting lit up because my car had antennas on it and the police thought I might be impersonating an officer. So I threw an amber light bar on top of my car (the kind where the plastic is amber and not clear). I picked up a class I (dim lightbar) for $50 from an automotive shop. And guess what happened? The cops left me alone because now my car looked like a construction vehicle.
I only actually used it four times (I no longer have it as I no longer have that car):
- To block a flooded road that was under 4' of water.
- To block a flooded lane in a road that was under 2-3' of water. Another guy in a construction truck actually stopped and turned on his ambers on that one because he said my amber light was too dim to see (it was).
- When a vehicle traveling the opposite direction was passing a car and we were about to get into a head on collision. I wanted to increase my visibility.
- When I crashed my car into a guard rail and my car was blocking a lane of traffic.
So those are my good reasons to have a lightbar. Notice none of them involve driving down the road in the middle of a storm so other cars don't hit you. Because the fact is, I might hit you BECAUSE you are using class III ambers while driving down the road, and now I'm blind.