Question 1

What are the wiring instructions?  The colors on the new lamps don't match the colors on my trailer.

Accepted Answer

This standard trailer wiring diagram might help: 
https://images-na.ssl-images-amazon.com/images/I/81ApsHWlz5L._SL1500_.jpg 
The gray wire (running lights) on each of these lights would be connected to the brown wires in that diagram. The red wire (brake/turn signals) on each light would be connected to the yellow wire on the left side and the green wire on the right side. The white wire (ground) would be connected under one of each light's mounting bolts. Be sure it has good contact to the metal. If the wire colors on your trailer don't exactly match those in the diagram, just remember that the running lights will be the same color wire on both sides of the trailer and the brake/turn signals will be one color on the left and another color on the right.

Question 2

Why 3 wires my boat trailer only has 2?

Accepted Answer

This standard trailer wiring diagram might help: 
https://images-na.ssl-images-amazon.com/images/I/81ApsHWlz5L._SL1500_.jpg 
The gray wire (running lights) on each of these lights would be connected to the brown wires in that diagram. The red wire (brake/turn signals) on each light would be connected to the yellow wire on the left side and the green wire on the right side. The white wire (ground) would be connected under one of each light's mounting bolts. Be sure it has good contact to the metal. If the wire colors on your trailer don't exactly match those in the diagram, just remember that the running lights will be the same color wire on both sides of the trailer and the brake/turn signals will be one color on the left and another color on the right.

Question 3

Do these require having a resistor to reduce current?

Accepted Answer

They have an  internal resistor. I installed them on my boat trailer and they work great

Question 4

Do these lights have a warranty?

Accepted Answer

Dear cusotmer, we provide 12 months warranty.

ASIN	B014PCL7Y6
Additional Features	High Beam
Auto Part Position	Outer
Automotive Fit Type	Universal Fit
Best Sellers Rank	#4,002 in Automotive ( See Top 100 in Automotive ) #6 in Car Trailer Lighting
Brand Name	Partsam
Color	Red
Compatible with Vehicle Type	Truck
Customer Reviews	4.6 4.6 out of 5 stars (14,054)
Included Components	2x Square Trailer Tail Lights, 2x Gaskets, 4x Screws
Is Assembly Required	No
Item Weight	1 Pounds
Lens Color	Red
Lens Material	Plastic
Light Source	LED
Manufacturer	Partsam
Manufacturer Part Number	GTCV-0475639698
Model Number	4332989291
Model Year	1997
Number of Items	2
Number of Packs	2
Set Name	2pc Submersible Square Red White LED Stop Turn Tail License Brake Trailer Light kit
Specific Uses For Product	Boat Lights, Rear Lights, Stop Lihgts, Brake Lights, Turn Signal Lights, Running Lights
UPC	602731720709
Unit Count	2.0 Count
Voltage	12 Volts
Wattage	12 watts

Partsam 12V Submersible Square Led Trailer Light,Red White LED Stop Turn Tail License Brake Running Light Lamp for Trailers Under 80" Boat Trailer Truck Marine Camper RV Snowmobile,IP68,DOT Compliant

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