bing tracking image
  1. Trailer Lights
  2. Optronics
  3. Tail Lights
  4. Oval
  5. LED Light
  6. Red
Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Red Lens

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

Item # STL72RB
Our Price: $12.94
You Save: 34%
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.27 lbs
In Stock
Optronics Tail Lights - STL72RB
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
6-7/16" x 2-1/8" Oval. Waterproof LED trailer tail light functions as a stop, tail, and turn signal light. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts standard 3-prong plug (not included). Great Prices for the best trailer lights from Optronics. Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Red Lens part number STL72RB can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (513)
  • Q & A (0)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - STL72RB

  • Tail Lights
  • Oval
  • LED Light
  • Red
  • 6-1/2L x 2W Inch
  • Recessed Mount
  • Stop/Turn/Tail
  • Submersible Lights
  • Optronics

6-7/16" x 2-1/8" Oval. Waterproof LED trailer tail light functions as a stop, tail, and turn signal light. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts standard 3-prong plug (not included).


  • Oval trailer light serves 3 functions on trailers less than 80" wide
    • 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
  • Recessed mounts with grommet (A70GB - sold separately)
    • Mounts in any 360-degree position
  • Accepts industry standard 3-prong plug (A45PB or A47PB - both sold separately)
  • DOT compliant


  • Overall dimensions: 6-7/16" long x 2-1/8" tall x 1-3/4" thick
  • Diodes: 10
  • Powerdraw at 12.8V:
    • Stop/Turn: 0.243 amps
    • Tail: 0.046 amps
  • Lifetimes warranty on LEDs

Manufacturer Cross Reference:
Light will work as an exact replacement for:

  • Uni bond # LED2238-13R
  • Grote # 53962
  • Peterson # M420R-2
Optronics STL72RB Oval Sealed LED Tail Light 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.

Recessed-Mount Light

Recessed mount light

Recessed-mount trailer lights install underneath a grommet (A70GB - sold separately). These lights will extend into the mounting surface and require that a hole be cut into your trailer.

STL72RB Optronics LED Trailer Tail light - Stop, Tail, Turn - Submersible - 10 LEDs - Red Lens

Alternate part number: STL-72RB

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Red Lens - STL72RB

Average Customer Rating:  4.8 out of 5 stars   (513 Customer Reviews)

6-7/16" x 2-1/8" Oval. Waterproof LED trailer tail light functions as a stop, tail, and turn signal light. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts standard 3-prong plug (not included).


Bright and work well so far, have not yet submerged into the lake. But a word of warning.. I was surprised the lights were just tossed loose into a shipping box. No packaging, no rubber grommets, no pigtails. Luckily both the old rubber grommets and electrical connectors were in good shape on my trailer, and the new lights didn’t get too banged up in the shipping box.

After a year the lights are still bright and work flawlessly. Multiple dunks into the lake and no water was able to get into the lenses... would buy again!
Kyle - 07/10/2022


I have a Haulmark utility trailer. One tail light was giving me trouble and I tried fixing it but decided to just replace it with these. They are brighter and fit right in to the old grommet. They were a bit loose so I wrapped some e-tape around them and they are staying in place just fine. I also ordered the pigtails and soldered and heat-shrinked the connections - the factory connecting were "scotch-locks", which I hate. After I did this, I looked closely at the old lights and realized that there was a 3 prong plug which I might have been able to use rather than doing new connections and soldering them, but by doing what I did, I now have tight connections and I can easily replace the light if I ever have to (I got rid of the scotch locks). Yes, I could maybe have soldered the old connections and used the old plug, but it was constructed in such a way that I didn't realize it was there (I thought it was part of the light body). My picture shows the old light and the old plug disconnected from it and the new LED in place on my trailer. It works great - glad I did this. It's much brighter than the old light.


Perfect fit, I was able to re-use the existing rubber grommet and existing wiring. Plugged right in, no issues. A lot brighter than single bulb. As for customer service, can say enough! They followed with email upon shipping and followed up e-mail when delivered. Thank you, very happy customer!!!


Perfect replacement for OEM part at 1/4 the price the trailer manufacture wanted. The replacement is a 10 diode model, the OEM was only 7. The folks at etrailer are great to do business with - very responsive.


Did not use due to led v incandescent resistor needs, but looks to be well made.


etrailer is awesome to work with. They always seem to have the right part for my horse trailers and process orders and ship very quickly. I have always been happy with their service.


Used to replace a TruckLite 60 trailer light. Good fitment in original TruckLite rubber trailer grommet. Literally took 72 seconds to pop old light assembly out and plug in this new unit.


Exactly what I needed.... I bent up my trailer light box when hauling a tractor, and got the back end of the trailer caught up in a ditch.... so I had the box cut off and a new one welded on.... the old light was broken, so I ordered a new one... as I wanted the same lights on both sides, I ordered two of them from etrailer, and now I'm back in business with the right lights on my flat bed. Fast shipping also was a plus! Thanks etrailer!


Needed these lights for one of our cargo trailers. I had a rear light go out, and these units are sealed... You can't buy just a replacement bulb. They fit perfectly, and are bright and reliable. Customer service was amazing, quick delivery. I'm a contractor, with 6 of these large cargo trailers, and using these LED replacement lights is the only way to go. They never burn out! Love Etrailer.

One year later, the trailer lights are doing great. Thanks for checking in. That rig is used every day in our business, and they are performing fine.
Bob B - 06/09/2018


No comparison to incandescent sealed unit, instant brilliant lights.


91 Dodge dually had the old bulb red marker lights put the new LED red marker lights on have attached a picture so you can see what the lights look like and we are pressing the break so that's why they're bright

Good price, fast shipping, makes yo girl look new again


product is good, but the way it was packaged could of been better. was damaged and had to be reshipped.


Seems to be a great product, shipping was fast with the rest of the order


Excellent product


Fit and looked great. Excellent replacement for older incandescent type.


Bright and quick to install


Taillight/Turn signal led fixture fit and works as original.


Great light, very bright!


Replaced all 4 lights on back of trailer and it looks great. Easy to order, fast delivery and communication every step of the way. They were incredibly easy to replace.

Mrs. Striker


Glad I forgot to order tail light from manufacturer for my tow dolly when I ordered replacement fender. Yours is perfect fit, much better price and best value for shipping of all sites I checked.


The suspension parts were exactly what I needed. Always a pleasure to do business with etrailer.


I needed replacement lights for my boat trailer. I called to get help and to make sure I was buying the correct size/lights your customer service was top notch so I placed the order right then. Lights fit great and are nice and bright. Last test is at the boat ramp hoping there truly submersible. Thanks for good service and price eTrailer.


Exactly what I was looking for!


Great product just what I needed


Fast and professional service as always.

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Are Replacement Bulbs Available for Optronics 10 LED Oval Trailer Light # STL72RB
    The Optronics 10-LED Oval Trailer Light, part # STL72RB, is made with a housing that is sonically sealed to make it waterproof. This means that there are no user-replaceable parts inside.
    view full answer...
  • Troubleshooting Excessive Trailer Tire Wear
    The first place I would look is at the suspension components of your trailer. Worn out suspension can cause tires to wear strange. You could jack up your trailer (use jackstands) and get underneath your trailer and see if you can find any movement in your suspension components. While the trailer is jacked up also try and spin the wheels of the trailer. They should spin freely by hand but you should feel a light drag from the brake assemblies. If this drag isn't present the assemblies might...
    view full answer...
  • Locating Replacement Tail Light for 2010 Q5i SF Tahoe Boat Trailer
    We likely have trailer tail lights that will work well to replace the stolen units on your Q5i SF Tahoe Boat Trailer. I was unable to find that model light that is used on your trailer, but you can take a look at the still present left side assembly to see if you can find a part number on the light itself. If you can tell me the part number for the light, I will be happy to see if we have a replacement assembly available. Otherwise, if you can take a couple measurements on the light I...
    view full answer...
    Image 1 for
  • Can Boat Trailer Lights Be Used on a Camper?
    You can absolutely use boat trailer lights on a camper. The trailer lights for boat trailers are the same in function they just are sealed for submersion instead of just water resistance. I've linked the page for all of the submersible trailer lights to assist so you can get the style and function desired. I've attached an article to assist with lighting requirements for trailers to assist.
    view full answer...
  • Replacement LED Lights for a 1998 Ranger Boat Trailer
    We have a large selection of LED trailer lights which I have attached for you. You will need to go through these and pick the one that best matches your existing lights. You could also provide me with a dimensional photo to which I could then search our selection and find the best match for you but these would be your only options as we do not have information about what lights your trailer came with.
    view full answer...
  • Can Trailer Lights Be Wired for Both Turn Signals and Brake Lights Using Only One Light Per Side
    You can absolutely wire your trailer for both turn signals and brake lights using only one light per side, as long as each light has either 3 wires (tail lights, stop/turn, ground) or 2 wires with a ground that goes through the mounting hardware. When using a 4-Way connector, this is very standard and typically how the trailer lights will be wired. You will have no issue wiring your trailer in this manner. I have included an article on trailer wiring that you might also find helpful.
    view full answer...
  • Turn Signals on Trailer are Dim and Not Work with Running Lights On
    There are a couple of possible reasons why the directional lights on your trailer are dim and do not work at all when the running lights are turned on. The most common cause for this type of issue is a weak ground. A weak ground connection will usually allow enough current through for some lights to pass, but not enough for all of them. Considering that the running lights will remain continuously on when activated, unlike the brake or turn signals, they will require more power and there...
    view full answer...
  • Troubleshooting Trailer Lights that Stop Working When Running Lights Are On
    It sounds like there is a ground issue on your trailer, which makes itself known only when turning on the running lights because this requires a bit more power. A weak ground might be enough for certain functions to activate by themselves like your turn signals and hazards, but when an additional function like your running lights are turned on, there simply is not enough power to go around. I recommend checking that your main trailer ground is connected to a clean, bare metal surface...
    view full answer...
  • Locating Replacement Lights for 2008 Featherlite Horse Trailer
    We do have a large selection of trailer lights available. In order to choose replacements for your existing assemblies, I first recommend checking to see if you can find a model number or manufacturer information listed somewhere on the assembly itself. If you cannot locate this, then you will want to measure the unit in order to pick out a compatible replacement. Unfortunately, trailer manufacturers do not often maintain a record of smaller parts that they install on their trailers,...
    view full answer...
  • What Direction Should Trailer Tail Light # STL72RB Face When Mounted on Trailer
    When mounting the Trailer Tail Light # STL72RB as a turn signal/tail/stop light it has to be facing directly behind the trailer towards a vehicle that would be behind you. The orientation of the wiring harness pins is not super important but it has to be visible directly from a vehicle behind the trailer.
    view full answer...
    Image 1 for
  • Troubleshooting Trailer Light When Brake Light And Turn Signal Stop Working
    You can do a couple things to find the problem. The easiest thing to try is to remove the light from the right side and plug it into the wiring for the left. If all of the functions work then you know the left light is the culprit. If it is a sealed system you will probably just need to replace it. If you have the same issue with the right light when plugged into the left side wiring and it does the same thing then you will need to check the wiring from the connector all the way to...
    view full answer...
  • Troubleshooting Left Turn Signal Light on Trailer that Is Dim But Not With Brake Lights
    It is most likely a ground issue that is causing the problems you described on your trailer. Since several lights are behaving strange I would first check to make sure the main ground for the trailer is connected to a clean metal surface. You can also try running the ground wire of each light back to the main trailer ground and that will help as well. If the lights ground through the mounting hardware you also will want to make sure that they are attached to a clean metal surface.
    view full answer...
  • LED Trailer Light Replacement for Truk-Lite 60202R
    Yes, I pulled up some dimension pictures of your truk-lite 60202R and it matches the # STL72RB which is an LED like you want so it would work well.
    view full answer...
  • LED Trailer Light Recommendation to Replace a Truck Lite Model 60
    I looked up the dimensions for the Truck Lite Model 60 that you have and it matches the Trailer Tail Light # STL72RB perfectly so this light would work great as a replacement for you.
    view full answer...
  • Would Optronics Light STL72RB Fit as Replacement for Command Electronic 003-5400
    The Optronics light part # STL72RB is made to fit a standard trailer light dimension so it makes sense that it would fit and work for your setup. I attached a picture that has the light dimensions for you to check to see if they match.
    view full answer...
    Image 1 for
  • Red Oval LED Stop/Turn/Tail Light to Replace Truck-Lite 60 Series
    A Truck-Lite 60 Series oval stop/turn/tail light measures approximately 6 x 2-inches so for an LED type replacement you can use one of the recessed-mount lights shown on the linked page. The link also include flush-mount lights in the same design and size. For a recessed-mount light Optronics' # STL72RB that you referenced would be a good choice. The 10 diodes will be much brighter than the original incandescent bulbs and will also use only small fraction of the power those required.
    view full answer...
  • How To Determine Correct Replacement Trailer Light
    We likely have a light that will work for you, though there aren't specific fits for any trailers like your Aluma, and the SAE number isn't actually a part number, it stands for Society of Automotive Engineers; the SAE is a rating and just means the lights are safe for use. So in order to find an replacement light, you will simply need to measure your current tail lights and find the one that most closely matches your measurement. For example, the Optronics LED Trailer Tail Light # STL72RB...
    view full answer...
  • Replacement Multi-Function LED Trailer Light for Glo-Brite 9852-88
    I have a solution for you, but we do not carry Glo-Brite lights, so replacing it with the same brand will not be something I can offer you. Instead, to replace your Glo-Brite 9852-88, I recommend using the Optronics LED Trailer Tail Light # STL72RB. This is also a 10 diode LED light with stop, turn and tail light functions like the light you're replacing and also measures 6-7/16" long and 2-1/8" wide like your Glo-Brite light. The Optronics brand is synonymous with high quality craftsmanship...
    view full answer...
  • What Are the SAE Codes for the Optronics LED Trailer Tail Light STL72RB
    The SAE Lighting Identification Codes for the Optronics LED Trailer Tail Light part # STL72RB are as follows; S2, T2, and I6.
    view full answer...
  • Optronics Trailer Lights # STL72RB LED Light Brightness
    I spoke with my contact at Optronics and was informed that the Lumen Difference between the # STL22RB and the # STL72RB LED tail lights is not tested by Optronics. I was told though that the more LED lights that are in the tail light the brighter the light will be whether the description says super diode or not. I have personally installed the Sealed, 6-1/2 inch Oval LED Trailer Stop, Turn and Tail Light, 10 Super Diode, item # STL72RB, on a CornPro 24 foot car hauler and these lights...
    view full answer...
  • Looking for 24 Inch Long 1 Inch Tall LED Tail/Turn/Stop Light
    The longest tail/turn/stop led light bar that we have that is similar to the Optronics # STL2RB that you referenced is the Optronics # STL79RB, which is 17 inches long and 1 inch wide. This unit is sealed so it is waterproof and contains 11 LEDs. Past the 17 inch point, you get into 48 inch running lights that go on the tailgate of a truck. I have attached a brief video demonstrating the 17 inch bar.
    view full answer...
  • Is Optronics 48 LED Light # STL70RB Brighter Than Optronics 10 Super LED Light # STL72RB
    I spoke with my contact at Optronics and they said the trailer lights are measured in candela output. Candela output is the luminous intensity of the light, or candle power. For comparison they said the candela output on a 100 watt incandescent light bulb in your home is 100 cd. They said the Optronics Sealed, 6-1/2 Inch Oval LED Trailer Light, 10 Super LEDs, part # STL72RB, uses 10 Super LEDs and has a candela output of 12 cd on the tail lights and 221 cd on the stop and turn lights. On...
    view full answer...
  • Recommendation For Light For Horse Trailer That Includes Backup Light Option
    Based on your information, I recommend the Optronics LED Trailer Tail Light, Item # STL211RB. It has the stop, tail, turn, and backup options included. This Optronics light is 6-7/16 inches long x 2-5/16 inches wide. These dimensions are the same as the Optronics Trailer Tail Light, Item # STL72RB, which you currently have. Let me know if they will not work for you and I will recommend something else. I have also attached a video for you to checkout.
    view full answer...
    Image 1 for
  • 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...
    view full answer...

< Previous
123. . .4

Do you have a question about this Trailer Light?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer light information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Sarah L
Expert Research:
Sarah L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Joshua S
Video by:
Joshua S
Employee Dustin K
Video by:
Dustin K
Employee Jacob T
Video Edited:
Jacob T
Employee Laura H
Updated by:
Laura H
Employee Amy B
Updated by:
Amy B
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Hannah L
Updated by:
Hannah L
Employee Matthew E
Updated by:
Matthew E
Employee Cole B
Installed by:
Cole B
Employee Hayden R
Installed by:
Hayden R
Employee Ryan G
Installed by:
Ryan G

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924