I was blinded to the point of nearly driving off the road by one of these over the holidays here in rural Iowa. It’s the first time I’ve ever encountered someone actually using the light bar at night while driving 60mph down the road. To say that I couldn’t see anything at all is an understatement. I tried to keep my eyes on the road, look down and to the right to avoid the lights, but the closer it got the more my field of view it took up. I genuinely thought he was going to hit us because I couldn’t tell where the truck was at or where my car was at, it was like a train coming down a tunnel.