Comparing Optronics # ST40RB and Optronics # STL003RFLB Trailer Lights
Updated 01/23/2019 | Published 01/22/2019
Products Featured in This Question
Question:
Hi there, The light Im replacing only has two wires. What is the third white wire for on this? Similar to Item # ST40RB Id like to get the LED instead but just want to make sure Im not missing something. Thank you!
asked by: Samuel B
Expert Reply:
Aside from the Optronics # ST40RB having an incandescent bulb and the Optronics # STL003RFLB being LED the only other big difference is that the first part grounds through the mounting hardware while the LED version grounds through a wire. This is why one unit has 2 wires and the other has 3.
We have 2 pigtail options for the LED verison for you to use. Part # A45PB has the wires coming straight out of the plug while part # A47PB has a right angle for tight spacing where your lights mount.
I have attached some sample installation videos for you to check out.
Product Page this Question was Asked From
ONE LED Trailer Light w/ Flange - Brake, Tail, Turn - Submersible - Round - Red
- Trailer Lights
- Tail Lights
- Stop
- Tail
- Turn
- Round
- Recessed Mount
- Submersible Lights
- LED Light
- 4-1/4 Inch Diameter
- Red
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Will the Replacement Red Lens # A42RB Replace Do Ray SS-105
- Article: Trailer Wiring Diagrams
- Q&A: Replacement Taillights, Wiring and 7-Way Connector for Car Hauler
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
- Q&A: Coupler Lock that Fits Demco Actuator part # DM8204311
- Q&A: Replacement Tail Lights For a 1965 Selma 4 X 6 Utility Trailer
- Q&A: Where Is The Trailer Tow Wiring Located On 2017 Buick Enclave
- Article: Trailer Lighting Requirements
- Q&A: How to Wire the Red Identification Light Bar with White LED Utility Light OPT88FR?
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Q&A: What is the Difference Between Over 80 inch and Under 80 inch Trailer Tail Lights
- Article: Troubleshooting Brake Controller Installations
- Article: 5 Reasons to Convert Your RV Lights to LEDs Today
- Article: Brake Controller Installation: Starting from Scratch