1. Trailer Lights
  2. Optronics
  3. Tail Lights
  4. Oval
  5. LED Light
  6. Red
Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens

Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens

Item # STL79RB
lowest price pledge
Retail:$23.56
Our Price: $19.29
You Save: 18%
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.53 lbs
Quantity: 
In Stock
Trailer Lights STL79RB - Submersible Lights - Optronics
zoom in 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

17" x 1-3/8" x 1". Waterproof LED combination trailer tail light acts as a brake, tail, and turn signal when properly mounted. Durable polycarbonate housing and lens. Surface mount - hardware not included. 3-Wire design. Lowest Prices for the best trailer lights from Optronics. Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens part number STL79RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (352)
  • Q & A (57)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - STL79RB

  • Tail Lights
  • Oval
  • LED Light
  • Red
  • Surface Mount
  • 17L x 1-1/2W Inch
  • Optronics
  • Submersible Lights
  • Stop/Turn/Tail

17" x 1-3/8" x 1". Waterproof LED combination trailer tail light acts as a brake, tail, and turn signal when properly mounted. Durable polycarbonate housing and lens. Surface mount - hardware not included. 3-Wire design.


Features:

  • Low-profile LED trailer light serves 3 functions:
    • Stop
    • Turn
    • Tail
  • Sonically sealed, polycarbonate housing and lens are waterproof
  • Durable surface-mount technolgy (SMT) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows for improved heat distribution
  • 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
  • Red lens over white LEDs
  • Surface mount - hardware not included
  • 3-Wire design


Specs:

  • Overall dimensions: 17" long x 1-3/8" wide x 1" deep
  • Distance between mounting holes (center on center): 16-1/8"
  • Diodes: 11
  • Power draw at 12.8V:
    • Stop/turn: 0.350 amps
    • Tail: 0.022 amps
  • Lifetime warranty on LEDs


Optronics STL79 Series Streamline Sealed LED Trailer Tail Light Diagram

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 circuit board is sealed, which means that water will not damage the diodes or circuit board.



STL79RB Optronics Streamline LED Combination Trailer Tail Light - Submersible - Stop, Tail, Turn - 11 Diodes - Red Lens

Alternate part number: STL-79RB




California residents: click here


Video of Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Optronics Trailer Lights - Tail Lights - STL79RB Review


Customer Reviews

Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens - STL79RB

Average Customer Rating:  4.8 out of 5 stars   (352 Customer Reviews)

17" x 1-3/8" x 1". Waterproof LED combination trailer tail light acts as a brake, tail, and turn signal when properly mounted. Durable polycarbonate housing and lens. Surface mount - hardware not included. 3-Wire design.

- STL79RB
by:

Some of the light units were not in any type of packaging at all. And the license plate holder light would only light two of the five LEDs in it. I am returning the entire order because m, 1, bad packaging, 2, license light is defective, 3, the quality of all products is not up to speed with the RV 5th wheel coach I wanted to put them on. It’s a 2019 35 foot unit and I want better quality equipment installed onto it. 596609



- STL79RB
by:

My order came boxed very nice. All contents were there as promised. Chris was excellent to order from. She understood what I needed and had my order out that afternoon. I'd buy again from this company. All my lights are of premium quality, no junk. My converted ( incandescent to LED ) snowmobile trailer will be seen now. 338330



- STL79RB
by:

We installed two lights on a ramp for the rear of our car. They were so simple to install and they are very bright. Great product! 147110



- STL79RB
by:

The clear LED tailight strips that came with my trailer started filling with moisture and were only partially working. Most trailer part places only had the 15" lights. You were the only ones I found with the 17" lights and a diagram showing the mounting hole centers and dimensions. The product pictures were great for checking the wiring. Quick shipping and the tracking link was great. A few simple tools & some butt connectors and I was done. Finished the job with clear caulking around the lights.I like the red strip over the clear stock one and the lights are easy to see even in full sun. 124510



- STL79RB
by:

So far so good. Lights came a day earlier than predicted and in good shape. I plan to install them (stop/turn/tail on a boat trailer hopefully to prevent some "texter" from rear ending my boat motor. I did test the light with a battery and they seem very bright and that's what I was looking for. 798694



- STL79RB
by:

Approximately one year ago, etrailer.com assisted me with the procurement of 2 Optronics Streamline LED Trailer Tail Light - Submersible - 3 Function - 11 Diodes - Red Lens, Item # STL79RB. The items arrived swiftly, were easy to install and of smart weather proof design. The metal grommet at the surface mount screw holes IMO is great, as there is less of a chance to over tighten the screw and compromise the polycarbonate housing. The lights have remained dependable through all types of weather in the last year. 793432



- STL79RB
by:

Product worked as promised and is still in tact and working properly. 785191



- STL79RB
by:

These were used to replace my old faded trailer lights. They are much better quality than the originals. e trailer people are the best i dont even shop any where else . Fast shipping and great parts. Thanks and keep up the good work. 779728



- STL79RB
by:

Just put them on, they seem to be well made, better than original. Mounted up using original screws in original holes. 776611



- STL79RB
by:

Working great and bright 749589



- STL79RB
by:

Delivered fast and correct parts. Very happy, would recommend etrailer for your parts. 749247



- STL79RB
by:

Fit perfect on my Haulmark enclosed tra iler 738423



- STL79RB
by:

Great Service fast ship 736610



- STL79RB
by:

great service, McKinzie did a great job helping me find exactly what we needed. Thank YOU!! 719964



- STL79RB
by:

Looked at several lights on amazon. Flat on the back makes for a difficult connection. Found these on etrailer and worked great. Their is a good space behind the light to deal with the ground and wires. Excellent buy! Very happy with purchase. Shipping was fast and great follow up on purchase. Will buy again! 718451



- STL79RB
by:

Easy install and great fit and look, glad to have all my lights working again. 717476



- STL79RB
by:

I love how BRIGHT these lights are, and the 2 of them look great on back of boat trailer 683641



- STL79RB
by:

Lights were very easy to install and Noah was very helpful 672803



- STL79RB
by:

The products I ordered were of top quality and delivered on time. I will purchase again from etrailer should the need arise. 659343



- STL79RB
by:

Appears to be of good quality, not perfectly flat on the back side but flattens out with a little effort. 658425



- STL79RB
by:

Received quickly 657600



- STL79RB
by:

Simple and smooth design, two screws and two connectors to install. 652872



- STL79RB
by:

Haven’t installed this one yet. 647425



- STL79RB
by:

Lights came promptly and fit my zieman seadoo trailer perfectly, no modifications. Thanks 647998



- STL79RB
by:

Working good and satisified. 625348


30
371
Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Recommended Lights to Increase Visibility on Hitch-Mounted Bike Rack
    The Optronics Sealed, Streamline LED Trailer Light # STL79RB referenced in your question will work to provide an additional light on your bike rack, however there may be easier options. You might have trouble mounting the light assembly to the rack itself and the 3-wire design will not allow for easy disconnect when you are not using the bike rack. For an easier option, I recommend looking at the LED Light Kit # 98174LED. You can easily mount these to your bike by using the Mounting...
    view full answer...
  • Recommended Parts and Wiring for Adding LED Lights to Aluminum Cargo Carrier with Ramp
    Thank you for all of the helpful information! I do have a few different options for you to add LED lighting to your scooter carrier that resembles the MaxxTow 27x47 Cargo Carrier # MT70100. You can definitely use the Optronics Streamline LED Trailer Tail Light # STL79RB with wiring like the Hopkins Endurance # HM38134 by just using heat shrink butt connectors # DW05744-5. Since your carrier is aluminum you will need to cut off the eyelet on the ground wire and splice it to the white...
    view full answer...
  • Compatibility of Optronics Streamline LED Trailer Lights for 2018 Grand Design 220RK 5th Wheel
    You can absolutely remove the factory tail lights and replace them with a style you prefer like the Sealed, Streamline LED Trailer Stop, Turn and Tail Light, 3-Function, 11 Super Diodes # STL79RB. These are designed to be used as a replacement light and not simply an additional light, but they can be used for either purpose. I've attached a video of this installation for you to assist. There is an optional chrome base used only for the look that works with this light. It is # A79CB...
    view full answer...
  • Can 3 Function LED Light STL79RB Be Used for Stop, Turn, and Tail Lights on Both Sides of Trailer
    Yes, the # STL79RB 3-function LED would work for stop, turn signal, and tail light functions on your trailer if you installed one on each side. If you look at the back of the light, you will see three wires, as pictured. To install the lights, the white wire, equipped with a ring terminal, will be connected to a clean metal surface on the trailer frame, the black wire will be connected to the tail light circuit, and the red wire will connected to the brake and turn signal circuit....
    view full answer...
  • Troubleshooting Tail Light Issues on New Grand Design Trailer
    Since you tested the tow vehicle's connector and know it's working properly, we can at least focus all our attention on the trailer side. It sounds like you've already done this, but it certainly sounds like there's some kind of ground issue on the Grand Design that's causing the dim lights, and now the issue on the left side tail light. Check once more to make sure all your ground connections, both the main harness ground for the 7-Way and each individual ground for the light assemblies...
    view full answer...
  • How To Wire A Third Brake Light On A Trailer
    To get a third brake light on your trailer I would recommend the Optronics Sealed, Streamline LED Trailer Third Brake Light, 1-Function, part # STL80RB. This can be wired to your trailer using the Tow Ready Vehicle to Vehicle Taillight Converter, part # 118158. To install the tail light converter # 118158 on your trailer you will connect the wires on the input side of the converter, white (ground) to the trailer frame, green wire to green wire on your trailers wiring, and yellow wire...
    view full answer...
  • Adding a Third Brake Light to a Small Camper Trailer
    You could use light # STL79RB as a third brake light. Normally it is not recommended to mix LED lights at incandescent lights because the lights don't have voltage/amperage regulators and an incandescent light could draw too much power through an LED and burn it out. But it would work fine in this case because in order to have a third brake light you would have to separate out the combined turn signal/brake light circuits to get a dedicated brake light only function for a third brake...
    view full answer...
  • Which Wires Should be Tapped Into When Adding Additional LED Marker Lights on a Boat Trailer
    In order to add LED lights that shine on your boat at night, they will need to be wired into the running light wire or wires on the trailer. On a typical 4-Way flat, it is the brown wire coming from the trailer side connector. To be certain, you can use a circuit tester like # 40376. With the trailer connector and vehicle lights on, probe the wires coming from the back of the connector until you find the one that is hot all the time. You can trace this wire back to where you want to...
    view full answer...
  • Troubleshooting Trailer Lights that Turn and Brake Doesn't Work When Truck Running Lights are On
    What you're describing is typically a ground issue. But you've checked the grounds so it must be a short. You might try cleaning each ground connection just to be sure if you haven't already. Next I would clean both connectors on the tow vehicle and trailer. Also use a circuit tester on the vehicle's connector to make sure the issue is definitely on the trailer. If the problem is on the trailer trace the wiring back to the lights looking for any damaged or pinched wires. If the...
    view full answer...
  • Operation of Optronics Streamline LED Trailer Lights STL79RB
    Yes, what you are describing is normal operation for the Optronics Streamline LED Trailer Tail Light # STL79RB. When just the running lights are on the 4 diodes on top and bottom are brighter than the 3 middle diodes. When you press the brakes or use your turn signal all of them are supposed to light up. You can see this in the attached photo and review video.
    view full answer...
  • Can Optronics LED Trailer Light, Part # STL79RB, Replace Tail Lights on 1996 Chevy S-10 Pickup
    The Optronics LED 3-Function Trailer Light, Part # STL79RB, is intended for use on a trailer to provide stop, turn and tail light functions. It is not intended for use as a replacement tail light on a vehicle, although this sort of application is not uncommon. You might want to check with your local DOT or highway patrol just to confirm that using these and separate amber bulbs for turn signals, as you intend to do, is legal in your state. Since your 1996 Chevy S-10 Pickup uses a combined...
    view full answer...
  • LED Strip Recommendation for a Trailer for Additional Stop/Turn/Tail Function Visibility
    If your LED strips only have a power and ground wire then they only have one illumination intensity and would not work for what you are trying to do. I would un-install them and go back to the wiring setup you had previous for now. Your best option would be to get the 3-Function LED Bar part # STL79RB that you referenced as this is specifically designed for what you are trying to do. I would run one on either side of your trailer. Connect the white wire to ground, the red wire will connect...
    view full answer...
  • Installation Instructions for Optronics 3 Function Streamline LED Light part # STL79RB
    The white wire, with the mounting eye, is a ground wire that needs to be connected to a metal surface on the trailer that is electrically grounded like the frame. The other two wires will provide the brake/turn and running lights. This light will not provide functions for both sides of the trailer, in order to do that, you would need two units. The black wire would be connected to your running lights, and the red will be wired to the brake/turn wire. In order for this light to simultaneously...
    view full answer...
  • Using Vehicle To Vehicle Taillight Converter # 118158 to Provide 3rd Brake Lamp on Trailer
    The Tow Ready # 11858 is essentially a reverse tail light converter. A trailer used what we call a combined tail light system, where the signals for the brake lamps as well as the turn signals are carried on the same circuit. The # 118158 reverses this process, by separating the brake lamp signal from the turn signal circuit. To install a 3rd brake lamp on a trailer, the # 118158 is exactly what you would need. You would tap the green and yellow wires on the INPUT side of the converter...
    view full answer...
  • Special Converter Needed to Add LED Third Brake Light to a Trailer
    There is another converter that I recommend when LED lights are involved, # C56196. It has the same wire functions and installs the same way as # 118158 that you have mentioned. I have included a link to a video review for you.
    view full answer...
  • Can Optronics LED Trailer Stop, Turn and Tail Lights Be Used with a 4 Pole Connector
    Yes you can connect a pair of Optronics Sealed, Streamline LED Trailer Stop, Turn and Tail Lights # STL79RB to your 4 pole connector on your vehicle. You will want a 4-Pole Trailer End Connector like # 18004, then you will want to connect the light's white ground wire to the white ground wire on the end connector, one red wire to green, and one red wire to yellow, and the black wire to black. I have included a link to a video review of this light for you. We also carry the same light...
    view full answer...
  • Trailer Brake Lights Stopped Working After Adding Additional LED Trailer Lights
    The brake lights on the trailer draw more power than the running lights or turn signals so the problem could be that the extra lights are creating too much draw on the system which is not allowing them to work. You may need to use a powered converter that draws power for the trailer lights directly from the tow vehicle battery instead of through the vehicle wiring system. There are several available depending on the year, make, and model of your vehicle. There could also be a ground...
    view full answer...
  • How Does the Optronics Trailer Light # STL79RB Wire to Trailer Wiring
    The wiring of the Optronics Trailer Light # STL79RB that you listed are: The white wire, with the mounting eye, is a ground wire that needs to be connected to the white wire of your trailer wiring. The black wire would be connected to your running lights and is the lower intensity illumination. This should be run to the brown wire of your trailer wiring as this is usually the tail light circuit. The red will be wired to the brake/turn wire and is for the higher intensity illumination....
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2001 Subaru Outback
    The recommended trailer wiring harness for your 2001 Subaru Outback is the part # 118461 that plugs into the port in the rear cargo area of the vehicle. The standard way to use this harness is to keep it stored in the cargo compartment of the vehicle when not in use and then run it out the back door when needed. Some people don't like the routing of the 4-way when it comes out of the back hatch of the vehicle, but it does protect the harness from weather and damage when not in use. Corrosion...
    view full answer...
  • Can a Horse Trailer be Converted to Run Off 12 Volt DC Power and 110 Volt AC Power
    The biggest hurdle to overcome is having the trailer lights run off of 12 volt DC and 110 AC power. On a trailer that was not set up for this from the factory that means you would have to have a transfer switch installed and the associated wiring and electrical devices for it to be functional. In a nutshell retrofitting a trailer with a transfer switch is a task best left to professionals who work on trailers and RVs. The easy way to get AC power on the trailer is to use a power inverter...
    view full answer...
  • How to Wire Up a Powered Winch Mounted at Rear of Truck
    I attached a help article that details exactly what is required for wiring up a winch, but for your setup you would want to go with a wiring kit like part # BDW20043. This will run wires up directly to the battery. LED lights draw a very small amount, so you could power them pretty easily off of the 12 volt accessory circuit of the 7-way which is in the 1:00 pin position.
    view full answer...
  • How to Determine Wiring Functions on Trailer to Allow Light Installation
    It sounds like your existing trailer light may handle more functions than the 3-function (stop/turn/tail) Optronics LED light # STL79RB. This light has a white ground wire and two leads for power; the red wire handles stop/turn signals and the black wire accepts the tail light signal. Thank you for your included photo. In a typical 4-pole wiring configuration the green and yellow wires carry combined stop/turn signals, the white wire is ground, and the brown wire carries taillights....
    view full answer...
  • DOT Approved Clearance Light for Commercial Trailer
    If a trailer light we offer has been DOT approved we try to list it in the product description. For a similar LED light that is DOT approved you would want the part # STL69RRXB. Check out the review video I attached for more info. I also attached a help article on trailer light requirements.
    view full answer...
  • Availability of Red LED Light Bar for Car Hauler Trailer
    One item that may suit your needs is Optronics # MCL88RCB. This light bar is 17-inches long, uses 11 red LEDs and features a 2-wire hookup. This is a single-function light. Part # STL79RB also has similar dimensions and 11 diodes but has a red lens. This is a 3-function light. Part # STL80RB is an 11-LED, single-function red lens fixture. All light bar products are linked for your review.
    view full answer...
  • Is There a Difference Between Tail Lights With Clear Lenses and Red Lenses
    There is not an advantage to having tail lights that have a clear lens over a tail light that has a red lens, both will function well and provide bright enough tail light functions. It is a cosmetic preference, some people prefer the look of one over the other, so they are both available. You will need to check with your local laws and regulations concerning trailer tail lights, in some areas it may be illegal to use tail lights with clear lenses such as the Optronics Trailer Light #...
    view full answer...
  • When Installing Optronics Streamline Stop/Turn Light # STL79RB Which Blinker Circuit Should be Used
    Ideally you use two of the Sealed, Streamline LED Trailer Stop, Turn and Tail Lights # STL79RB. One for each side of the trailer. They can be installed right next to each other. Like this you'd be able to use the appropriate blinker circuit for the side of the trailer that way they will act as a turn signal and brake light and will flash and illuminate as needed.
    view full answer...
  • Will Taillight Converter 118158 Power an LED Third Brake Light
    The # 118158 will work for you. It can work to power an LED when installed on a vehicle with incandescent bulbs. As long as it has incandescent bulbs to power the converter it functions fine.
    view full answer...
  • How to Make Third Brake Light Adapter for Cargo Carrier
    Since your trailer wiring will have the stop and turn signal circuits combined onto one wire you'll need a converter to isolate out the stop circuit for adding an additional brake light. For that you'd want the part # 118158 wired to your trailer wiring and the red wire would carry the circuit needed for the third brake light. You can make a wiring kit for your cargo carrier using a 4-way connector like the part # HM48133 wired to the # 118158 and mounted to your carrier and you'd have...
    view full answer...
  • Are All LED's of the Optronics Stop, Turn and Taillight # STL79RB The Same Brightness
    According to my Optronics representative, the # STL79RB is purposely designed so that the middle three diodes which illuminate the running light function are a bit more dim. The outer diodes are brighter, and the lens tends to magnify the diodes making them appear much brighter.
    view full answer...
  • Installation Of The Optronics Tail Lights # STL79RB
    There is not a base plate for the Optronics Trailer Lights # STL79RB. It is a sealed light, with a clear plastic backing which isn't easy to see from the pictures, but there is not a need for a mounting base plate because the mounting holed are integrated and the unit itself is sealed and thus has a waterproof housing and lens unit. You will be able to mount this light to any flat surface. The mounting holes are 16-1/8 inch center to center. You can mount these reusing the manufacturer's...
    view full answer...




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer lights for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • 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:

Expert Research:
Mike L
Expert Research:
Sarah L
Expert Research:
Robert G
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Reno H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Updated by:
Laura H
Updated by:
Brian T
Updated by:
Hannah L

At etrailer.com 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.