Dumb question regarding trailer wiring

[FLAVALK]

I have a flat 4-pole connector (yellow, brown, green, white wires) on my boat trailer and I know what each wire does.

I purchased a set of LED "PIPE-LIGHTS" to install on the trailer and there are 3-wires coming off each light (RED, BLACK and WHITE)

I assume the WHITE wire is ground, but which one is "TURN/STOP" and which one is "RUN"

Thanks in advance 

[Troystg]

I have a flat 4-pole connector (yellow, brown, green, white wires) on my boat trailer and I know what each wire does.

I purchased a set of LED "PIPE-LIGHTS" to install on the trailer and there are 3-wires coming off each light (RED, BLACK and WHITE)

I assume the WHITE wire is ground, but which one is "TURN/STOP" and which one is "RUN"

Thanks in advance 

I can't tell you which is which but if they are standard 12volt you can jumper them to the battery and see. 

One common, one running and one brake / turning.  Obviously the brake / turning lead will be brighter than the running light.

[FLAVALK]

I got it. White is ground, red is turn/stop, black is running. These suckers are BRIGHT!