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Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens

Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens

Item # STL211RB
Our Price: $29.71
Trailer Lights
Shipping Weight: 0.34 lbs
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6-7/16" x 2-5/16" Oval. 4-Function, waterproof light acts as brake, tail, turn, and backup light. Recessed mount with grommet (sold separately). Accepts 2-prong plug for backup and 3-prong plug for tail light. 16 Diodes. Great Prices for the best trailer lights from Optronics. Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens part number STL211RB can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - STL211RB

  • Tail Lights
  • Oval
  • LED Light
  • Red and White
  • 6-7/16L x 2-5/16W Inch
  • Recessed Mount
  • Stop/Turn/Tail/Backup
  • Submersible Lights
  • Optronics

6-7/16" x 2-5/16" Oval. 4-Function, waterproof light acts as brake, tail, turn, and backup light. Recessed mount with grommet (sold separately). Accepts 2-prong plug for backup and 3-prong plug for tail light. 16 Diodes.


  • Low-profile trailer tail light serves 4 functions
    • Stop light
    • Tail light
    • Turn signal light
    • Built-in backup light eliminates the need to cut holes in your trailer for 2 lights
  • Sonically sealed, waterproof housing and lens unit is submersible
  • Durable surface-mount technology (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
  • Durable polycarbonate lens and housing
  • Red lens set inside white lens with red and white LEDs
    • Red lens with red LEDs for tail light
    • Clear lens with white LEDs for backup light
  • Recessed mount with grommet (A70GB - sold separately)
  • Accepts industry-standard plugs (sold separately)
    • 2-Prong plug for backup light function
    • 3-Prong plug for tail light functions
  • DOT compliant


  • Quantity: 1 light
  • Overall dimensions: 6-7/16" long x 2-5/16" tall x 1-1/2" deep
  • Diodes: 16
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.375 amps
    • Tail light: 0.2 amps
    • Backup light: 0.242 amps
  • Lifetime warranty on LEDs

Optronics STL211X Series Fusion Gen II LED Combination 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 housing or a grommet, which is often sold separately. These lights will extend into the mounting surface and require that a hole be cut into your trailer.

STL211XRB Optronics Fusion 6" Oval Combination LED Boat Trailer Taillight w/ Built-in Reverse Light - 16 Diodes - Red Lens

Replaces STL211RB

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens - STL211RB

Average Customer Rating:  4.9 out of 5 stars   (58 Customer Reviews)

6-7/16" x 2-5/16" Oval. 4-Function, waterproof light acts as brake, tail, turn, and backup light. Recessed mount with grommet (sold separately). Accepts 2-prong plug for backup and 3-prong plug for tail light. 16 Diodes.


Quite pleased with these lights, have changed both of my trailer lights to this product, one standard the other a boat trailer. Recommend.


This is the third boat trailer that I have used these lights on. While the backup lights aren't "daylight" bright they do a pretty good job. (it's my understanding that "back up lights" are regulated as to total light output) If you need more light you could always use a seperate "work light" in addition to your regular stop/turn/tail light assembly. One of the nice things about these lights is that they fit in the standard oval mounting hole as a regular oval tail light assembly. Another is that the "white" LED's turn "red" when the stop or turn function is activated.

I like the fact that I can have (at least a fair amount) of light to aid in backing the trailer at night down those pesky dark boat ramps. They also come in handy to alert others that you are backing up.

As a technical note: the back up light gets it's ground from inside the tail light NOT from the white (ground) wire from the back up light pigtail. I other words, if you apply power to the red wire and ground the white wire.......the backup light WILL NOT ILLUMINATE! That does not mean you have received a bad light from Etrailer. The white wire on the back up light pigtail (2 pin,....1 red and 1 white) IS NOT USED. You must use the white wire from the stop/turn/tail light pigtail (3 pin,...1 red, 1 white, and 1 black) as your ground for the back up light to work. The earlier version of this light had the grounds separated.


Awesome lights, nice and bright. Being able to add reverse lights to my boat trailer is very helpful on dark boat ramps. The Combo light that fits in my existing grommet was nice since there was no room to add an additional light.

Andy L.


Still working great one year later!


These lights are great. The backup lights work awesome! No more dragging the brake while backing up just to be able to see when I'm backing up.

On a 7 pin round trailer plug connect to the "reverse lights" not the center auxiliary power pin. Connect both of the pigtail grounds up to make them work.


Excellent product, well made. They do the job for my needs. I'm usually backing in the dark, and needed reverse lights to illuminate the driveway markers.


I seem to ve having an issue with the light staying in the grommet, have lost 1 light so far. Don't know if excessive dust has anything to do with it.


Easy install .. quality product. Good reverse light bright led’s


I wanted to add the extra visibility of reverse lights on my car hauler so that when I'm backing up to leave the track people can see me and I can see them better.

These lights did not disappoint very bright and operate as intended, I highly recommend getting the pigtails made for them it makes the wiring job so much easier.

I didn't really need them to be submersible but its nice piece of mind knowing they are not going to fail when subjected to rain and elements.

Darren K.


working great! Nice bright reverse lights in a package no bigger than the original braketail lights.


The product works well and allowed me to add recessed backup lights to my boat trailer using the existing openings cut into the frame. I would recommend these for anyone who wants to add backup lights and retain good brake and running lights.



The trailer lights have worked well. I do wish the backup lights were a little brighter.

Etrailer Expert

Mike L.


In order to meet Federal Department of Transportation Standards, a reverse lamp is only supposed to be so bright. This is why many who are wanting a brighter lamp for better illumination of the surrounding area when backing a trailer will use a utility lamp like part # BUL72CB.


Excellent product from optronics
get best of both worlds with the reverse lights build in with the stop turn and running light
Only etrailer carries this product, look around all over and never saw this profuct available anywhare else

Servando S.


Product works as it should, i still enjoy the product, the light output is bright, the only down side i have about it, which the reverse lights would have a slide blueish tint to it to mach up my other led lights on the truck , the white on the product/reverse lightover time turns a slide yellow like a regular halogen light buldBut over all great product


I bought two of these to help me back my boat trailer up the driveway at night. Driveway curves and can be a challenge when it is dark. While these lights are not like headlights, they light up behind the trailer just fine and have made backing up at night quite easy. They are almost one year old and still work perfectly.

Would not hesitate to recommend these for anybody. All you need to add is an extra wire tied to the blue backup light / backup solenoid wire at the trailer connector. I simply ran a blue wire down both sides to keep it simple and clean. No new holes to drill or no trying to figure out where to mount the backup light, the LED light fits in the standard oval trailer light opening with no modification needed other than the new wire.


They work quite well. Backup illumination is so-so, but I wanted backup lamps to notify others around me and they are definitely visible even in daylight. No leaks as of the 1 year mark. Only reason I didn't give them 5 stars was due to the bullet style connectors used on the back. These are not fully waterproof connections. I know these style of connectors are an industry standard, but it's an aging standard and newer trailer manufacturers are wising up and starting to move to more of a "sealed" type electrical connection.


Upon placing an order i had not received tracking number of shipment and called to see where order was after 7 days. While there was some confusion they found the problem that supplier was no longer making a stainless light bracket and originally said they were 2 more weeks out on getting the powder coated ones. 3 days later may shipment was received in full with everything. Even though there was an error in the order at least you could contact someone and get immediate assistance. This will be my first choice for parts as they have given great service on all my previous orders as well. Keep up the great service hard to find these days.


Good light... Easy replacement


This is a great product for the cost. It seems to be well constructed and, for me, easy to use. Optronics evidently did their homework. The L.E.D.s are bright and clear. Wiring is simple with the (separately sold) quick connect harnesses. In my specific application, I mounted (4) of these on the rear of my trailer to double up the backup light brightness. They work great.


Tough to find item! I like to have reverse lights on my trailers. It's nice to have the extra light when backing them into a parking spot, or in my storage spot. 6" ovals with tail, blinker, brake AND reverse lights are tough to locate, but these fit the bill just perfectly. The reverse lights are plenty bright, and provide the light I need to see what's going on.


Product worked exactly as described... made for an easy conversion of my original LED tail lights to upgraded models that feature integrated backup lights.


Neat...great lights for a small profile


Looked for something like this for years. I didn't know they actually made them. They light up the street for a half block. I can back my 20 foot car trailer any where in the dark. The measurements are slightly different from the standard light but they fit perfectly in the grommet. The best part is (I will never have to replace them again.)


I do not know why all trailers do not come with backup lights. Now it is possible without all of the extra wiring and lights needed. My trailer came with Optronics/Fusion lights already so all I need to do was add the wiring to the lights and the extra pigtails.


great light ...very bright. I installed on my car hauler with 20 foot deck...makes night backing so much easier....just bought set for my jet boat trailer


These lights are so much better than the ones that came on my trailer factory. Now I can see the curbs at the boat ramp at night.



These lights are still working great after a year of many trips to the lake fishing tournaments and fun fishing. Love them.


Fit perfect and works great. Thanks e- trailer


Completely sealed, bright and sturdy. Would definitely use these on any tail light project.


They certainly fill the bill, direct replacement and they always have gotten the job done since I got them. At night I can see where I'm going backing up at night.

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Which is Brighter the LED Trailer Tail Light STL211RCB or STL211RB
    Since LED lights prefer clear lenses for maximum brightness the part # STL211RCB that has the clear lens and red diodes would be brighter than the # STL211RB. If you check out the picture I attached you can see how the diodes of the # STL211RCB are noticeably brighter. You can also see how the side diodes are the same intensity in either picture so you know the difference is due to the lens.
    view full answer...
    Image 1 for
  • Dimensions of the Optronics Stop-Tail-Turn-Backup Trailer Tail Light # STL211RB
    The best info I can give you on whether or not the part # STL211RB would fit in the grommet of your trailer is the dimensions of the light so that you can compare them to what your trailer currently has. The dimensions are 6-7/16" long x 2-5/16" tall x 1-1/2" deep.
    view full answer...
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  • Does Optronics LED Trailer Light Come As A Pair Or A Single Light - Item # STL211RB
    The Optronics LED Trailer Tail Light, Item # STL211RB, is only one light and not a pair. I have attached a video for you to check out.
    view full answer...
  • Wiring & Operation of Optronics LED Trailer Tail Light STL211RB
    The Optronics LED Trailer Tail Light # STL211RB has two separate inputs on its rear surface, one for operating the red stop/turn/tail lights and another for the white reverse light. The stop/turn/tail light functions are carried on the red lens with red LEDs. The backup light uses a clear lens with white LEDs. Both lights operate independently so if you were backing up with your foot on the brake both the red and clear lenses would be illuminated.
    view full answer...
  • Could Optronics LED Trailer Tail Light # STL211RB Replace a Blazer 6 inch Oval Light 565BRK
    A lot of times we have found that trailer light manufacturers will all stick to the same dimensions for their lights so that there lights could easily replace a competitors. Based on the dimensions you took of your Blazer light it sounds like the part # STL211RB would fit and be an exact replacement. What you would want to do is check out the dimensional drawings I attached for the # STL211RB so that you can compare it to your lights.
    view full answer...
    Image 1 for
  • Replacement Trailer Taillight for 2019 Marine Master Boat Trailer
    Thanks for the picture of the taillight you have on your 2019 Marine Master boat trailer. Based on seeing that the correct replacement taillight you'd want is the part # STL211RB.
    view full answer...
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  • 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...
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  • Are All Replacement Oval Trailer Tail Lights the Same Size
    Since trailers come in different sizes and lights are used for different things, not all oval trailer lights are the same size. For example, the Optronics Trailer Tail Light # STL68RB is 10" Long x 3" Wide whereas the Optronics Trailer Tail Light # STL211RB is 6-1/2" Long x 2-1/2" Wide. I have linked our selection of oval trailer lights for you to filter through. You can choose different options to filter through like size, color, and whether it is LED or incandescent. If you are unsure...
    view full answer...
  • DOT Approved Trailer Tail Light with Backup Light and Reflectors
    Yes the Optronics oval tail light with backup light # STL211RB meets DOT requirements for use on a trailer. If you want something with even more reflective qualities you can use # STL161RLB for left side and # STL161RB for the right side. I have linked videos of both of these lights for you.
    view full answer...
  • Replacement LED Tail Light for Trail Star Boat Trailer With Tail-Turn-Stop-Backup Functions
    Thanks for the photo. We do have the light you are seeking! It is the Optronics Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens # STL211RB. I've attached a video of this light to assist. This light can be used on the starboard or port side by simply flipping the direction of the reverse light side before installing.
    view full answer...
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  • Oval Trailer Light for Use on the Back of a 2016 Ford F-250
    If you want the light to plug into a 4-Way flat connector on your 2016 Ford F-250 then I do not recommend # STL211RB because it has a reverse light function and the reverse light circuit is not carried in the 4-Way. I recommend flange mount light # STL78RB which does have stop, tail, and turn signal functions. Keep in mind that trailer lights only have 1 input for turn signals so if you were to wire in that corresponding wire to the green and yellow wires on a trailer side 4-Way then the...
    view full answer...
  • LED-Type White Trailer Backup Light for Bass Tracker Trailer
    We do offer LED-type trailer lights with backup lights included, such as # STL211RB and # STL201RFMB, but none in the size/shape of # STL15RB. However, I can offer you an alternative. For a really bright and useful white LED backup light for your trailer you might want to consider a separate light such as the Optronics 42-diode surface-mount # BUL90CB. This 7-inch diameter round light will let you almost get a tan too if you want! Simple 2-wire connection to your reverse light circuit...
    view full answer...
  • Wire Functions for Trailer Tail Light - Stop, Tail, Turn STL72RB
    The first thing to do is figure out the functions of the wires on your Kubota. Using a circuit tester such as # PTW2993 or a meter if you have one you can test each wire while someone operates the various light functions. On light # STL72RB you would use pigtail # A45PB. On it the white wire is ground, the black wire is for tail/running lights, and the red wire is for combined turn signal and brake lights. Once you know the functions of the wires on your lights you can match them up to...
    view full answer...
  • Is the Tow Package Harness and Connector # 118247 Compatible with LED Trailer Light # STL211RB
    The Tow Package Vehicle Wiring Harness with 7-Way Trailer Connector # 118247 (which fits a 2004 Ford F-150) is compatible with a trailer that is either using a 7-Way connector or an adapter that connects to the 7-Way. It doesn't matter if the trailer has the LED Trailer Tail Light # STL211RB or an incandescent light. So yes, they will work together. The only time that you might experience a problem is if all of the lights on your trailer are LED and they are not pulling enough power for...
    view full answer...
  • Replacement Trailer Lights That Are Recessed Ovals With Grommet
    We don't have any lights in that specific size. The closest we have are the LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - 16 Diodes - Oval - Clear Lens # STL211RCB that measure 6-7/16" long x 2-5/16" tall x 1-1/2" deep. These install with the PVC Grommet for 6-1/2" Oval Trailer Tail Lights # A70GB which should account for the measurement differences you mentioned. Other options are the LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - 16 Diodes - Oval...
    view full answer...
  • How To Confirm Fit of the Fusion LED Trailer Tail Light
    The Fusion LED Trailer Tail Light part # STL211RB is designed to be used with the PVC Grommet part # a70gb which fits a rough opening of 6-11/16" x 2-5/8". Therefore, if this is what you have or close then it will work well for you. That said, this is a pretty standard size oval tail light which is classified as 6-1/2" wide so if this is what you have then odds are it will work. Please note, you'll also need the Right Angle 3-Wire Pigtail part # A47PB. I was not able to cross-reference...
    view full answer...
  • Required Mounting Hole Size for Submersible LED Trailer Tail Light # STL211RB
    You are correct, the Trailer Tail Light # STL72RB and # STL211RB are going to be the same size and both use Rubber Grommet, # a70gb, in order to be flush/recessed mounted. I have included a photo which lists the measurements of the grommet. The # STL211RB is going to require an additional wire pigtail, # A47PB for right angle and # A45PB for straight.
    view full answer...
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  • What Two Pigtails do I Need for my Fusion LED Trailer Tail Light Part # STL211RB
    For the Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup part # STL211RB you will use the Right Angle 3-Wire Pigtail for Optronics Trailer Lights part # A47PB for the three wire which will carry your running lights, turn/brake signal lights and your ground and the Right Angle 2-Wire Pigtail part # A49PB for the reverse light. I have linked a video for you on the installation process so you can see how they will work together.
    view full answer...
  • Does the Optronics Light Guide LED Truck/Trailer Light Carry Stop/Turn/Tail/Backup Light Functions
    The Light Guide LED Truck/Trailer Light # BUL602CRB carries the tail and backup functions for trailer lighting but it doesn't have provisions for the stop and turn functions. For that you would need the Optronics light part # STL211RB or part # STL211RCB depending on what style you are looking for. These carry the stop/turn/tail/backup functions, have the exact same dimensions as the light you referenced, are submersible, and have the option for a recessed mount when used with the grommet...
    view full answer...
  • Are Wiring Plug-Ins Needed for Optronics Trailer Tail Light # STL211RB
    Yes, wiring pigtails will be needed in order to install the Optronics Trailer Tail Light, # STL211RB. For straight pigtails you will need the 3-wire, # A45PB, and 2-wire, # A45CB. For right angle pigtails you will need the 3-wire, # A47PB, and 2-wire, # A49PB.
    view full answer...
  • Recommended Trailer Wiring to Add Reverse Lights to Boat Trailer
    The Fusion LED Trailer Tail Light - Stop, Tail, Turn, Backup - Submersible - Oval - Red/Clear Lens # STL211RB is a great light. You will need to rewire your trailer and then use a converter for your 7-way plug on your F-350. I recommend using the 40 Ft 5-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Auxiliary Wire # A40W5B to allow you that reverse light function and then use the 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with...
    view full answer...
  • Oval LED Trailer Tail and Backup Light that Mounts with a Grommet
    The closest match would be # STL211RB. It doesn't have a clear lens or Glo feature though. The grommet for this light is # A70GB and you would need pigtails # A47PB and # A49PB to plug into the back of it.
    view full answer...
  • Can Optronics Submersible LED Trailer Tail Light # STL211RB Be Mounted Vertically
    The Optronics Submersible Stop/Tail/Turn LED Trailer Tail Light # STL211RB can certainly be installed vertically if that is your preference or simply a better fit on your trailer. This sealed light assembly can be installed using grommet # a70gb along with mounting bracket # BK70BB. We also offer wiring for this light, plug # A45PB.
    view full answer...
  • Wiring Scheme for Optronics Stop-Tail-Turn-Backup Trailer Tail Light # STL211RB
    The Optronics Stop-Tail-Turn-Backup Trailer Tail Light # STL211RB that you referenced does indeed use either two 3-wire pigtail leads # A47PB (right angle) or # A45PB (straight) for connection or one of these can be substituted with # A45CB which is a two-wire plug. The linked photo shows you the single pin that carries the reverse signal according to my contact at Optronics. Please refer to the linked video for more information.
    view full answer...
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