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Optronics LED Trailer Light - Parking and Turn Signal - Submersible - Oval - Amber
Optronics

Optronics LED Trailer Light - Parking and Turn Signal - Submersible - Oval - Amber

Part Number: STL72AB
In Stock
$23.03
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6-7/16" Waterproof light acts as a turn signal and parking light. It installs in a cutout with a grommet (sold separately) and mounts flush with your trailer's surface. Works with 3-prong plugs. Great Prices for the best trailer lights from Optronics. Optronics LED Trailer Light - Parking and Turn Signal - Submersible - Oval - Amber part number STL72AB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL72AB

Highlights

  • One Light, Two Functions: Acts as both a parking and turn signal light for clear visibility.
  • Reliable In Any Weather: Waterproof, sealed design keeps moisture out—ideal for boat trailers.
  • Low Power Draw: Uses only 0.243A for turn and 0.046A for parking at 12.8V to save battery power.
  • Fewer Replacements Needed: Ten long-life LEDs are more efficient and durable than bulbs.
  • Clean, Flush Mount Look: Installs in a recessed grommet cutout for a smooth trailer surface.
  • Simple 3-Prong Hookup: Works with standard PL-3 pigtail connectors for quick wiring.

Features to know about

Better Visibility Day and Night: Bright Amber LED Output

When you need clear signals that stand out, this oval amber LED light gets the job done. It functions as both a turn signal and parking light, with the LEDs brightening for running lights and flashing for turns. Ten LEDs deliver efficient illumination that’s easy to see in daylight or at night, all while drawing just 0.046 amps for parking and 0.243 amps for signaling at 12.8 volts. It’s a crisp, reliable light that doesn’t strain your power system.

Built to Handle the Elements: Fully Waterproof and Submersible

Moisture is no match for this sealed light. The polycarbonate housing and lens are completely waterproof, making it a solid pick for trailers that hit rainy roads or back down boat ramps. You can count on it to stay sealed tight, keeping the LEDs protected from water intrusion and corrosion so it keeps working season after season.

Clean, Flush Fit: Recessed Mount with Optional Bracket

If you like your lighting setup to look clean, this light mounts flush with your trailer’s surface when installed with the A70GB grommet (sold separately). The recessed design helps protect the housing from bumps and snags while giving a finished look. For setups where cutting a hole isn’t ideal, an optional BK70BB mounting bracket can be used instead—still with the same grommet to keep things snug.

Simple Connection: Standard 3-Prong Plug

Wiring is straightforward with the built-in PL-3 connector that works with standard 3-prong plugs like the A45PB straight pigtail or A47PB right-angle version (sold separately). It’s plug-and-play compatible with 12V DC systems, so you can hook it up quickly and trust that it will light up when needed without extra wiring hassle.

Long-Lasting Performance: Durable LED Construction

Forget about bulb changes. This LED setup is built for longevity, using quality diodes backed by a lifetime warranty. The efficient design means less heat and no fragile filaments to break—just dependable performance every time you flip on your lights. At 6-7/16" long by 2-1/8" tall and 1-3/4" thick (including the plug), it fits neatly into standard 6-1/2" oval cutouts found on many trailers.

Specs

Dimensions

  • Overall dimensions (including plug): 6-7/16" long x 2-1/8" tall x 1-3/4" thick

Dimensional diagram of Optronics STL72AB oval amber LED trailer light showing measurements for length, width, and depth for submersible recessed mount installation.

Electrical

  • Compatible with: 12V DC systems
  • Power draw at 12.8 volts (Turn signal light): 0.243 amps
  • Power draw at 12.8 volts (Parking light): 0.046 amps

Lighting

  • Diodes: 10
  • Lifetime warranty on LEDs

Manufacturer Cross Reference

  • Uni Bond #: LED2238-27A
  • Grote #: 53963
  • Peterson #: M2875A-2

STL72AB Optronics LED Trailer Turn Signal and Parking Light - Waterproof - 10 Diodes - Oval - Amber Lens

Alternate part number: STL-72AB





Customer Satisfaction Score:

Ratings & Reviews

4.8

1753 reviews
5 Stars
(1532)
4 Stars
(143)
3 Stars
(36)
2 Stars
(17)
1 Star
(25)
Review sort icon
6-7/16" Waterproof light acts as a turn signal and parking light. It installs in a cutout with a grommet (sold separately) and mounts flush with your trailer's surface. Works with 3-prong plugs.

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Very bright and easy to install.



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perfect!



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high quality, fast and a good price.
Tough
to beat.



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Awesome product and fast delivery



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Light is bright and works great



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very good



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Happy customer



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Delivery on time , price right , will use again and again!



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Great assistance with customer service and products!



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Exact parts that I needed! Received in a timely manner! Folks were great to work with!



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Much brighter than my old ones



by:

Great product a little thicker than the original on the edge but not a big deal for my installation. Bright light and delivered fast.



by:

Matched up perfectly.



by:

etrailer.com had everything I needed to complete my trailer build, and at the right prices. The products are quality, with competitive pricing. etrailer.com delivered as promised, it was our local delivery that delayed sending the product out to my home, but one call to Pat, and the issue was immediately resolved, and I had the product that night! Great product, Great customer service!



by:

These trailer lights were easy to install and work great. Because they are LED and replaced an older bulb style light, I expect they will last much longer.



by:

Very happy with service and products. Your scope of inventory is amazing. Will send pictures of the installations after I get back from vacation in December. Used the strip lights to replace the original brake strip lights on a Winnebago "View" as well as adding additional turn lights. The other ones were used to improve a "light bar" that is on the rear of the car being towed. Were incandescent. The LEDs are much brighter and draw a fraction of the current.



by:

Have had these installed on our boat trailer for a year now as a replacement to the original lights. They continue to work each outing. This continues my great experience with products from etrailer.



by:

Lightning fast shipping, and the light was very easy to install. Perfect match for the other fender. Certainly will order from this supplier in the future!

Durk profile picture

Durk

5/29/2017

We have since sold this dolly. Light was working perfectly when we sold it.



by:

this Item was the right color,,, the same plug in,,, great fit,,, makes my trailer look new again,,, great price,,,



by:

Purchased the amber lights to replace two red ones so I can use them for turn signals along with my saddlebag lights on my trike. I was having a hard time finding what I wanted at the right price when I came acorss your site.
You were prompt in getting my order out and delivered at my home.
The photo shows them installed on the trike The top one's are the tail and stop lights
Thank you for great service.



by:

I use several of these on my 18 wheeler. They offer the best contrast between marker light and signal of any I have found. If I could keep the animals and gravel from knocking the hell out of them I'd be set.

Peanut B. profile picture

Peanut B.

8/7/2018

I enjoy these lights every time the sun goes down. Many of my truckin buddies comment on how bright these lights are and ask where I got them. Still love these lights and figure I always will. I have purchased many products from etrailer and use them on both my personal trailer as well as my 18 wheeler. Thanks for asking.


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See what our Experts say about this Optronics Trailer Lights

  • Replacement Front Turn Signal for a 1989 Ford F-59
    For a replacement turn signal to use on your 1989 Ford F-59, the Trailer Turn Signal and Parking Light part # STL72AB should work for you. In order to be sure you will need to measure the light you have now. If it measures to be around 6-7/16" long x 2-5/16" wide x 1-3/4" deep then the light will work for you. In order to install it you are also going to need to use the Right Angle 3-Wire Pigtail part # A47PB and possibly the PVC Grommet for 6-1/2" Oval Trailer Tail Lights part # A70GB.
    view full answer...
  • Adding LED Amber Turn Signals to a Trailer
    LED clearance light # CBL22AB is not DOT rated as a turn signal so I do not recommend using it. LED light # STL72AB can be used as a turn signal. It is one of the smaller options at 6-7/16" Long x 2-5/16; tall x 1-3/4" thick. Used with bracket # BK70BB and grommet # a70gb you will be able to mount it in your desired location. You will also need harness # A45PB. But those lights on your trailer are side marker lights, not turn signals. US trailers have the turn signals combined with the...
    view full answer...
    Image 1 for
  • Amber Version of LED Stop//Tail/Turn Wesbar 273564
    Yes we do. You would want the part # STL22AB for an amber version of the light part number you listed. Another option is the part # STL72AB or part # STL70AB.
    view full answer...
  • Can a Bus with a 24 Volt Electrical System Tow a Trailer and Car with 12 Volt Electrical Systems
    On the trailer it will be easy because you can add 24 volt lights such as # STL23R24B and # MCL66A24B just to name a few. But to flat tow a vehicle that is a different story. You would need to obtain a voltage reducer device and put one on each circuit ahead of the trailer connector so that it is 12 volts on the output side. We do not carry these devices and from what I know they can be expensive. If you go this route then the trailer would not have to have 24 volt lights.
    view full answer...
  • Bright LED Amber Light that Can be Seen Straight On and at an Angle
    I think I have the perfect light for you. Take a look at the LED amber clearance light # MCL49AB. This light has 14 diodes so it will be bright and you can see it straight on and from an angle. I have included a link to a video review of this light for you. You might also be interested in some conspicuity tape, # RE18T, for its reflective properties.
    view full answer...
  • Are Optronics # STL72AB Oval LED Lights Usable as Stop-Turn-Tail Lights
    The Optronics Amber Oval LED Trailer Turn Signal and Parking Light, part # STL72AB, is intended for use as a trailer turn signal and parking light. DOT requires that brake lights always have a red lens. Optronics offers a similar-size 3-function Stop-Turn-Tail LED Light with a red lens, part # STL22RB. I have included a video on this particular item and also one addressing trailer wiring. For both of these light assemblies you will need the Rubber Grommet, part # A70GB, which provides...
    view full answer...
  • Does Custer LED Amber Quad Flash Kit # CPL65A-STR Also Have Brake and Turn Signal Functions
    The Custer LED Amber Quad Flash Kit # CPL65A-STR that you referenced is strictly a strobe/flash set of LEDs in this light. An amber brake/turn signal LED light that is the same 6-1/2 inches is the Optronics # STL72AB. With this light you will also need the grommet # A70GB and a pigtail for power. If you need the straight pigtail it is # A45PB and the right angle pigtail is # A47PB.
    view full answer...
  • Recommendation of Turn Signal and Parking Light for Off-road use
    I recommend the amber trailer turn signal and parking light # ST70AB as it's sealed and waterproof. The rubber grommet # a70gb will provide shock mount protection extending the life of the lamp. The Optronics # MCL157AB could possibly be used as a turn signal but not recommended. The grommet you referred # A56GB would work as it will provide shock protection especially that you will be off-road. It will seat properly once the light is plugged into the grommet. The LED equivalent is amber...
    view full answer...

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Info for this part was:

Employee Andrew K
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Employee Jeff D
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Employee Cole B
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Cole B
Employee Michael H
Expert Research:
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Employee Adam R
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Employee Kathleen M
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Employee Jonathan Y
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Employee Justice A
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Employee Chris R
Video Edited:
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