See what our Experts say about this Optronics Trailer Lights

• Replacement for Round Tail Lights From Superbrightleds
  Hello Britton; the closest thing we have is the Optronics LED Trailer Tail Light # STL42RB. This has the same 5-1/2" overall diameter and requires a 4-1/2" round hole for installation. It also uses the same 3-prong plug you have now. It has less diodes but it is still a bright light. The number of diodes doesn't necessarily mean a light is dimmer or brighter. The one thing I didn't see listed is the distance between the mounting holes. The Optronics light measure 4-1/4" center hole to...
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• Installing Trailer Tail Lights with Two Wire Connections on 4-Way Wiring
  They are single function lights, so they can be used as running lights or stop/turn but not both. So for your trailer to be legal, you will need to run two on each side, one for the running light (brown wire of your 4-way) and one for the turn/stop light (green or yellow wire of your 4-way depending on side of the trailer). You will attach the power wire (green, yellow, or brown) to the red wire of your light. The white wire on your light will go to ground, so you will attach it to the...
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• Dimensions of the Mounting Holes of the LED Trailer Stop/Turn/Tail Light # STL43RBX
  I went and pulled a LED Trailer Stop/Turn/Tail Light # STL43RBX from our warehouse and measured the mounting holes and found them to be 4-1/4 inches apart. Of the lights we carry this will be the closest matching LED light to what you have.
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• Available Sizes of Round Trailer Tail Lights
  We do not have an exact 2-1/2-inch match to the GloLight LED Trailer Tail Light # STL101RFB which has a 4-inch lens diameter and an overall diameter of 5-1/2-inches but we do offer other a lot of roughly similar round red lights, both LED and incandescent, that you can see on the linked page. GloLight LED Trailer Tail Light # STL101RFB is a recessed-mount type that requires a mounting hole, but among the other options are that type as well as pedestal-mount lights like incandescent model...
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• Does Sealed, 4" Round LED Trailer Tail Light STL42RB Also have Reflectors
  Trailer tail light # STL42RB has reflective properties but I recommend # STL43RBX. The mounting ring around this light is a reflective lens rather than just a black ring like with # STL42RB. I also recommend wiring harness # A47PB to plug into the back of the light.
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• Diameter of Hole Needed to Install the LED Trailer Stop/Turn/Tail Light # STL43RBX
  To install the # STL43RBX you'd need a hole diameter right at the size of 4-7/8 inches as that is the diameter of the portion of the light that would need to insert into the hole. The overall diameter is 5-3/4 inches. For a pigtail harness to wire up this light you then would want the part # A45PB.
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• Comparing Pedestal Mount and Surface Mount Trailer Lights
  The majority of pedestal mount lights like the Optronics Round Trailer Tail Light part # ST51RB ground though the mounting hardware and the majority of surface mount lights like Optronics Round Trailer Tail Light part # STL43RBX ground with a single wire. That said, there are pedestal mount lights that ground with a single ground wire and surface mount lights that ground through the mounting hardware. The best one for you will really just be preference as there is not really a standard...
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• Is the Back of LED Trailer Stop/Turn/Tail Light STL-43RBX Exposed or Sealed
  The back of LED tail light # STL43RBX is exposed but the circuitry and diodes are sealed to prevent water from getting in and shorting out the light. This light uses a plug such as # A47PB so what you would want to do is use some dielectric grease # LT37534 on the pins before plugging it into the light. The grease will repel moisture and help prevent corrosion.
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• 4 Inch Round Tail Lights with Reflective Lens
  I do have an option for you but the Fusion LED Trailer Tail Light part # STL201RB does not have a reflective lens. I looked through all of our other 4" round tail lights and none of the ones with the included reverse light have a reflective lens. Therefore, the best option we can offer you is to separate the tail light and reverse light housing with the LED Trailer Stop/Turn/Tail Light part # STL43RBX and LED Trailer Backup Light part # BUL11CBX. These are both 4" round LED lights with...
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• Surface Mount Trailer Clearance Light Availability
  For what you are looking for a surface mount light like the part # STL43RBX would probably be a better option as it doesn't require a bracket and it does stick out a little bit.
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• Mounting of Optronics 4 Inch Round Tail Light
  The Optronics Tail Light # STL43RBX does not need a bracket for mounting. It has a built in flange and includes a rubber grommet. The light can be connected using a 3-wire pigtail, # A45PB, or # A47PB for a right angle.
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