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Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens

Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens

Item # STL42RB
Retail:$24.33
Our Price: $16.80
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Shipping Weight: 0.33 lbs
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Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens Recessed Mount STL42RB
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5-1/2" Diameter round. Waterproof trailer light serves 3 functions: stop, turn, and tail. Durable polycarbonate lens and housing. Mounts on trailer with built-in flange. Accepts standard 3-prong plug. Great Prices for the best trailer lights from Optronics. Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens part number STL42RB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (324)
  • Q & A (0)
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Optronics Trailer Lights - STL42RB

  • Tail Lights
  • Round
  • LED Light
  • Red
  • 4 Inch Diameter
  • Recessed Mount
  • Stop/Turn/Tail
  • Submersible Lights
  • Optronics

5-1/2" Diameter round. Waterproof trailer light serves 3 functions: stop, turn, and tail. Durable polycarbonate lens and housing. Mounts on trailer with built-in flange. Accepts standard 3-prong plug.


Features:

  • Red round trailer light serves 3 functions on trailers
    • Stop light
    • Tail light
    • Turn signal light
  • Sonically sealed, waterproof housing and lens unit is submersible
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide brighter light with less power output
    • No bulbs to replace - no brittle filaments
  • Durable polycarbonate lens and housing
  • Red lens over white LEDs
  • Mounts on trailer with built-in flange - hardware not included
    • Requires a 4-1/2" round hole for installation
  • Accepts industry standard 3-prong plug (A45PB and A47PB - both sold separately)
  • DOT compliant


Specs:

  • Dimensions: 5-1/2" diameter x 1-15/16" thick
  • Distance between mounting holes (center on center): 4-1/4"
  • Diodes: 10
  • Power draw at 12.8V:
    • Stop/turn: 0.413 amps
    • Tail: 0.0.26 amps
  • LIfetime warranty on LEDs


Manufacturer Cross Reference
Light will work as an exact replacement for:
  • Truck Lite # 44326R
  • Grote # 53292
  • Peterson # M418R-2

Optronics STL42 Series 4 Inch Round LED Light with Mounting Flange Diagram

Sonically Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.



STL42RB Optronics LED Trailer Tail Light - Stop, Turn, Tail - Waterproof - 10 Diodes - Round - Red Lens

Alternate part number: STL-42RB




California residents: click here


Customer Satisfaction Score:


Customer Reviews

Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens - STL42RB

Average Customer Rating:  4.8 out of 5 stars   (324 Customer Reviews)

5-1/2" Diameter round. Waterproof trailer light serves 3 functions: stop, turn, and tail. Durable polycarbonate lens and housing. Mounts on trailer with built-in flange. Accepts standard 3-prong plug.

by:

The trailer tail light fit perfectly on our 2011 Montana camper.
I would purchase the lights again!!



by:

I always find the right parts for my boat trailer. The service is great I like to keep a spare set of lights for my2008 Ranger trail trailer



by:

All the trailer lights were OEM and fit perfectly



by:

Used these to replace old lights on my horse trailer. Installation was easy and they are very bright. I had issues with a connector on my first order, but the second was just fine. I also had issues with one being dim, but found out it was my trailer plug. Once it was replaced, it was great! Would use these on another trailer if needed.



by:

Lights are great and fit perfect in my ‘09 Z520 Ranger boat trailer. Only reason for the 4star rating is because some of LEDs went out in the first set I bought. Four of the ten diodes would be lit but very dim. Thought it might be a ground wire or something on my trailer. It was not. This happened about three years after I put them in. I guess for how easy/inexpensive they are, it’s a good value still.



by:

Excellent replacement tail light



by:

I put these LED lights on my 1967 Scotty. They have a nice clean look, and show up so much better than the originals. The wiring process, with the plug in connections, was easy!



by:

Part fit perfectly and works great!!
Easy
to order and received part sooner than expected!
Recommend etrailer to anyone.
Thanks!!

Lamar

6/15/2023

Still working great. Would recommend to anyone!!



by:

Great service, great product



by:

Excellent quality of there product.



by:

Worked as should for 2009 Ranger bass boat trailer !



by:

Arrived promptly and was packaged in a protective box with padding to protect it during shipment. This was the first time I ordered from the company. I found the stop lights to be a quality product and would order from etrailer again!

Joseph

1/30/2023

I used these lights in conjunction with a wig-wag flasher unit to build a Railroad Crossing replica for my model railroad train room. Works and looks great in the sun-blocker shades I built around each.



by:

Great lights, very bright and visible day and night, much much better than the factory bulb light. I have recommended them to our friends who have RV's
Thanks etrailer



by:

They look great and are plenty bright. Don't forget to get those wiring pigtails though. These do not have any way to connect without them. No external wires, just a 3-prong connection on the housing.

Bryan

11/3/2021

These have been a good replacement for the old incandescent lights. Still working great.



by:

Perfect fit, wiring as described! Perfect upgrade for our 60s Sears Tent Trailer



by:

100 times better than the original lights I had with traditional bulbs. With the LEDs you can see them even better during the day. Which is nice to know that people can see me at all hours of the day.



by:

On time ,fits my boat trailer and works as it should. Thanks for the quick service



by:

Thanks... the light is perfect and at a great price. The other place wanted $26.00 for the same light and you charged much less. I highly recommend etrailer.com for parts.



by:

These are exact replacements for my 2009 RangerTrail trailer. Fit perfectly.



by:

nice lights



by:

Fit perfectly on my trailer and works g reat!



by:

Just what I needed for a perfect replacement on my boat trailer



by:

These LED tail lights are exactly what I have been looking for to renovate a trailer with recessed lights. I was excited to find them available from the etrailer company. Placing the order was easy, the company notified me when the order shipped, and the lights were delivered in a VERY TIMELY fashion!! This company has earned a 5 star rating, as well!

John G.

4/30/2018

Lights continue to function well and they still look great!! Fantastic quality!



by:

Very imprest with your service and follow-up to make certain the product arrived. Customer service is more important than the product in my opinion. (Recently bought a fully equipped 3500 ram dually Laramie longhorn truck-paid cash-and went to 3 dealership B4 I found a good service dept. Next purchase will be with this dealership regardless of price. Could probably get some of my needs cheeper thru Amazon but because of your service I will be dealing with you.



by:

These lights worked out great. good price too!
EZ install.

David

7/10/2020

Still working great!!


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324
Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • What is Needed to Replace Incandescent Lights on Trailer to LED Assemblies
    You can absolutely replace the incandescent lights on your livestock trailer with LED assemblies. Other than replacing the lights themselves, there is nothing else that you will need to do. Your existing wiring (assuming it is in good condition) can be left untouched. You will find that the new LED replacements will provide a brighter light on your trailer and also won't require near the power demand that your current incandescents need. I have attached a link that will take you directly...
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  • Can Utility Lights in Trailer Run Off Running Light Circuit Through a Switch on an Aluminum Trailer
    Yes, you can run the switch power wire to a clearance light but the trailer would have to be connected to the vehicle with the running lights on for the interior lights to have power. Aluminum does not offer the best ground so if the lights do not work you may have to run a jumper ground wire to a steel component or the main trailer connector ground. I would try it first to see if there is any problem with grounding to the aluminum surface. A fuse is not needed though you could add one...
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  • How to Ground a Trailer LED Light that Only has 1 Wire
    If a light has just 1 wire that means that it grounds through its mounting hardware. Be sure to use steel hardware and mount the light to a clean and corrosion free bare metal surface. If there isn't a steel surface where you want to mount the light you can place a ring terminal with attached wire between the hardware and mounting surface and attach the other end of the wire to a steel surface.
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  • Do Trailer Lights Sometimes Ground Through Mounting Hardware
    There are quite a few trailer light assemblies that use the mounting bracket as the ground. This works because the mounting brackets typically get attached to metal surfaces that touch the trailer frame which is where the ground strap of the trailer wiring harness connects. You can run a jumper wire from the mounting hardware to the main ground wire of the trailer if you wanted to as well.
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  • Is the Optronics Trailer Light # STL42RB Sold Individually
    The Sealed, 4" Round LED Trailer Stop, Turn and Tail Light # STL42RB that you referenced is sold individually. I attached a review video for you to check out as well.
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  • What is Amp/Hour Rating of Optronics LED Trailer Tail Light # STL42RB
    Yes, the amp rating of the Optronics LED Trailer Tail Light # STL42RB being .413 amps is the amp/hour rating. That means that it would draw that much amperage over the course of an hour if that circuit was used.
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  • Turn Signal and Brake Lights Stop Working on Trailer When Headlights are On
    This sounds like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
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  • Newly Installed LED Trailer Lights Go Out When Brake Pedal is Pressed
    This sounds like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
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  • Availability of Amber Version of the Sealed, 4 Round LED Light # STL42RB
    We do have an amber version of the light you mentioned as part # STL42AB. This is the exact same light as the # STL42RB except amber.
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  • Need Amber Taillights Like the Sealed 4" Round LED Trailer Taillight # STL42RB
    When it comes to the Sealed 4" Round LED Trailer Taillights, # STL42RB, the amber version is part # STL42AB. I have included two short videos for you.
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  • Replacement LED Tail Light For Pacific Trailer
    We have LED trailer lights available. If you have the dimensions of the light you want to replace that would help in finding the right replacement for your Pacific trailer. From my research I found that some of the Pacific trailers use part # STL42RB. This is a 4-inch round flange mount light that has 10 LEDs. It is a three function stop/turn/tail light. If you need a flush-mount light, we also have part # STL43RB. this is also a 3-function 10-LED light. If you are looking for an oval...
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  • Round LED Trailer Tail Lights to Replace Peterson Incandescent Lights
    Three inches is small for a tail light. There aren't even any incandescent stop, tail, and turn lights as small as 3 inches. It looks like to get what you want you will need to got to a 4 inch light. If you like the Peterson lights and need a flush mount that mounts in a grommet you could use # 435800. It does use the plug-in style connector but you would still hardwire all of the wires, including the grounds, to the trailer. This light includes the grommet and pigtail. I have included...
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  • Replacement Round LED Stop/Tail/Turn Light for 4-1/2-inch Opening
    It sounds like you are looking for a recessed-mount light such as Optronics Round LED Trailer Stop, Turn and Tail Light # STL42RB. This light has a 3-hole mounting flange that measures 5-1/2-inches overall diameter. The mounting holes are spaced on 4-1/4-inch centers. Other options in round red LED-type stop/turn/tail lights are shown on the link provided.
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  • Are Optronics Series 42 Taillights Available
    Are you speaking of the Optronics Series 42 taillights? If so, we offer that submersible 10-diode LED stop/turn/taillight as part # STL42RB. I've linked to a product demonstration video featuring the lamp.. If you're speaking of a different taillight, pleas provide me with a little more information about it and I'd be happy to help.
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  • Availability of a Round 4 inch Diameter Flush Mounted Clearance Light
    The part # ST45RB is a flush mounted red trailer light that is 4 inches in diameter. The part # STL42RB is also an option. It is LED 4 inch in diameter and has a flange mounted around the outside of it. For more similar options check out the link I attached that has all of the recess mounted 4 inch diameter clearance lights we offer.
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  • Can Silverado with Separate Turn Signal Circuits be Wired to Taillights that are Combined
    We have taillight converters like the # RM-732 which will take a separate circuit setup like your Silverado has and combine them so that you can use the circuits on the lighting you have now that was designed for combined circuits.
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  • Replacement Tail Light for 2009 Ranger Boat Trailer
    Sometimes it is possible to replace a broken trailer light with one that uses a different type of installation but since we offer a very wide range of lights you may very well be able to find an exact OEM-style replacement. It sounds like you have a light like # STL42RB which has a 3-hole mounting flange. I linked our main page for trailer tail lights of all shapes and sizes. On the page you can simply click on the filters for light shape, light type (LED or standard bulb), lens color,...
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  • Availability of 2 Inch Round LED Tail Lights for Trailer
    The closest match we have to the 2 inch stop/turn/tail lights you referenced are 4 inch round LED tail lights with grommet mount, # STL42RB. This is a 4 inch round clear back up light that has an overall diameter of 5-3/4 inches and a depth of 1-5/8 inches. This light will require a standard 3 prong plug, # A45PB. At this time we do not have any 2 inch stop/turn/tail lights.
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  • Replacement Tail Light For Forest River Georgetown XL RV
    I'd be happy to assist you. It sounds like you need the Sealed, Flush Mount Tall Rectangle LED Trailer Stop, Turn and Tail Light, Grommet and Plug, 12 Diode # STL34RB but most of the pictures I see have round tail lights like the Sealed, 4" Round, LED Stop/Turn/Tail light, 21 Diode - Red # STL55RB. If this is not the correct part, then send me a photo with the measurements of the light and we will get you what you need. The numbers and letters that are actually printed on the light are...
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    Image 1 for Image 2 for Image 3 for
  • Correct Wiring Needed to Install Optronics Round LED Trailer Light
    To install the Optronics Round LED Light # STL42RB you can use the Optronics 3-Wire Pigtail # A45PB. This has the three 20 gauge wires for stop, turn, and tail light functions. The red wire is for stop and turn, the black for tail lights, and the white is the ground wire.
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  • Sealing Up Around a Trailer Tail Light Using Tail Light # STL42RB On an Airstream Trailer
    You could use a gasket maker like # LT37464. You would just need to put a small bead of the gasket maker around the outer most flange on tail light # STL42RB. I have included a picture to show you what this would look like. You could also use silicone # 0160297 around the light and at the mounting holes after you have installed it.
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  • What Size Hole Should be Drilled to Install a 4 inch Optronics Clearance Light
    You would want to drill a 4-1/2 inch hole to install the 4-inch Optronics Trailer Light # STL45RB. You will also need a Straight 3-Wire Pigtail # A45PB to wire in the # STL45RB.
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  • Can Sealed, 4" Round LED # STL42RB be Ran as Extra Stop/Turn Signal Light
    The Sealed, 4" Round LED Trailer Stop, Turn and Tail Light, Flange Mount, 3-Function, 10 SuperDiode # STL42RB can be ran to the rear of a vehicle as additional stop/turn lights. Basically you'd just need the correct install harness like the # A47PB which you'd wire to the vehicle wiring and you'd be set.
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  • What is the Power Draw of Optronics LED 4 Inch Round Trailer Tail Light # STL42RB
    Because tail light # STL42RB has more than one function it has more than one amperage draw rating. Brake lights and turn signals draw more power so that will be the higher draw at 0.413 amps. Running lights use less power and would be the 0.26 amps. If you have the running lights on and then step on the brake, the brake light overrides the tail light. If you have the brakes on (with or without the running lights on) the turn signal will override the brake light on that side. So the most...
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Info for this part was:

Employee Robert G
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Employee Michael H
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Employee John H
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Employee Adam R
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Employee Brian T
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Employee Cole B
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Employee Chris R
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