marker lights

[wd45diesel man]

just bought a flatbed trailer to haul my tractor on, what color should the left and right side marker lights be at the rear of the trailer, yellow=amber or red?

 

[John B.]

Front and middle side lights are amber, rear side lights are red. Many taillights have the side marker light built in to them already. Don't forget the reflective tape on the sides and rear.

 

[john in la]

The answer to your question is red.

Follow the link and you can find out anything and everything you need to know about lights required.
You need to dig threw it a little because it list all types of trailers/trucks but all the info you need is there.
Lights