Does anyone know where to buy one of those Early Warning devices?

Adding more lights to a vehicle than what is required to be legal may not be legal, For unsafe conditions the flashers are supposed to be used, using other lights going down the road may confuse others. Those lights might be useful backing up in truck stops and shippers and receivers to gain more attention.

 

I just use my hazards , they came free with the truck.

 

White lights aren't legal on the rear of a vehicle, with the exception of the reverse lights and license plate light.

 

You ever pass a rollback loading a car? These idiots light up the night and blind you. Then they drive down the road with all kinds of silly lights flashing. What's the necessity in that? Just wannabe truckers. Boys and their toys.