Citation needed they may emit an amber light on any.
Roof clearance lights purpose.
The front position lamps on any vehicle must emit white light unless the vehicle is a motorcycle which may have amber front position lamps in the us canada mexico iceland japan new zealand australia only if combined with a side marker south korea north korea vietnam china thailand cambodia laos and much of the middle east.
To mark the top most outline of the truck per dot for a wide variety of overhead clearance needs.
Some big rig drivers get a little excessive with their trucks and trailers to make them look like rolling christmas trees.
Yes the clearance lights on the roof of the truck is to designate that the truck is wide and shows the height of the vehical oh ya they do make the truck look a heck of alot better at night.
Just a little bit of added safety.
The purpose of clearance or marker lights is so other people coming up to or going around a larger than expected vehicle know the general size of a vehicle in the dark.
It s also why you see the lights on heavy duty trucks and not light duty models.
These lights serve a specific purpose.
Also cab lights add visibility to the truck at night so other drivers can see the truck easier.
They re a government mandated mark of shame for vehicles that are so huge.
This is why you see these lights on an f 150 raptor over 80 inches wide and not on a regular f 150 79 9 inches wide likely not a coincidence.
I found out that ford and other ford parts dealers sell the wiring harness that came in factory trucks for clearance lights.
The two outside lights are called clearance lights because they show the outside dimensions both vertical and horizontal of the vehicle.
And you might ve also noticed that the truck has five little lights on its roof.
Personally i have all my lights on at all times for safety.
It was always my understanding that the white light bar on the roof of a pickup truck not colored clearance lights was for off road illumination such as at a work site where lighting is necessary for people working outside the truck or for sportsmen to handle their gear in the dark.
I love the look of all the lights on.
There are five lights across the roof above the windshield.
Cab lights glowing away.
I had to make a trip to ace hardware to get the flat washers and nylock 5mm nuts for the lights.
The harness ended up being 32 and each light 5 total were 5 99 each.
And so that s why certain vehicles have little orange marker lights on the roof.
Thats why cab lights are also called clearance lamps i think.