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Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 48 Diodes - Oval - Red Lens

Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 48 Diodes - Oval - Red Lens

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Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 48 Diodes - Oval - Red Lens Submersible Lights STL70RB
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6-1/2" x 2-1/4" Oval. 3-Function, waterproof LED light acts as a brake, tail, and turn signal. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts standard 3-prong plug. Lowest Prices for the best trailer lights from Optronics. Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 48 Diodes - Oval - Red Lens part number STL70RB can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (165)
  • Q & A (45)
  • Photos
  • Why etrailer?

Optronics Trailer Lights

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

6-1/2" x 2-1/4" Oval. 3-Function, waterproof LED light acts as a brake, tail, and turn signal. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts standard 3-prong plug.


  • Oval LED trailer tail light serves 3 functions
    • 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 clear LEDs
  • Compatible with 12V DC systems
  • Recessed mount with grommet (A70GB - sold separately)
    • Mounts in any 360 degree position
  • Accepts industry standard 3-prong plug


  • Dimensions: 6-1/2" long x 2-1/4" tall x 1-1/8" thick
  • Diodes: 48
  • Power draw at 12.8V:
    • Stop/turn: 0.362 amps
    • Tail: 0.013 amps
  • Lifetime warranty on LEDs

Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # LED2238-63R
Truck Lite # 60250R
Grote # 53962
Peterson # 420R
Maxxima # M60250R

Optronics STL70 Series High Diode LED Tail Light Dimensions

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

STL70RB Optronics High Diode Count LED Trailer Combination Tail Light - Stop, Tail, Turn - Submersible - 48 Diodes - Oval - Red Lens

Alternate part number: STL-70RB

Item # STL70RB

California residents: click here

Customer Reviews

Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 48 Diodes - Oval - Red Lens - STL70RB

Average Customer Rating:  4.9 out of 5 stars   (165 Customer Reviews)

6-1/2" x 2-1/4" Oval. 3-Function, waterproof LED light acts as a brake, tail, and turn signal. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts standard 3-prong plug.


This light was exactly like described. I purchase a lot on line and use amazon prime for free shipping. I could not find this light on amazon and was very impressed that etrailer.com had very reasonable shipping prices. Instead of gouging the cost was in line what normal shipping cost would be. The shipping and tracking were spot on and the lights were delivered as promised. A VERY good company to work with.

Still happy with the lights. Have not had any problems with them whatsoever
Michael B - 07/08/2020


I've been using the LED trailer lights for about a year now and they work fine. I'd still recommend them to anyone looking to upgrade or replace their existing tail lights.

Working just fine, exact replacement.
BRETT H - 07/01/2021


THESE ARE AWESUM. They even look good when off !! Cant wait to BLIND some tailgaters. Drivers who tailgate boat trailers need to be tazed. I ADDED a Sequential Turn module to each side making them even better. A 3rd brake light wire controls others so only E-Trailers Optronics blink. SUPER BRIGHT !! These pull no power at all so I run 30 LED units or hundreds of bulbs all around the trailer.


Trailer Tail Light- Stop, Turn - LED - Waterproof - 48 Diodes - Red Lens was used to replace the slandered bulb trailer tail light. This Trailer Tail Light is much brighter, easer to see in the dark and or on our dusty dirt roads.


It about 1 minute to install. They fit perfectly and are nice and bright. The running lights in the pictures were from my previous order. One of the pictures of the back of the trailer has the brake lights on. Let the snow dust fly!!!


I bought these lights for a boat trailer. They are very bright and we're easy to install. I would recommend to anyone looking for replacement lights

Fantastic....no problem at all.
Paul S - 02/19/2017


Great replacement for an existing led that started losing leds after 3 years. Same socket and 5 minutes to replace..


I ordered a tail light for my trailer and I almost immediately received an email letting me know that the item was out of stock and there would be a delay. They suggested a substitution and they promptly delivered it. I really appreciated the heads up and my trailer is out on the road again.


One of my old brake lights had failed. I found that this style of tail light is sealed and the bulbs cannot be replaced. Having previously had good experiences with etrailer.com, I gave them a call. The salesman recommended this particular unit as having been favorably received by their customers. I bought two so as not to have a mismatched set. They work perfectly and make the trailer look like the currently produced version. The center LEDs serve as the running light and all 48 come on with the brakes. A following driver would have to be blind to miss seeing these. etrailer.com again blew me away with their service. The new units arrived in two days without my requesting any special shipping or handling!

A year later and these lights are still working perfectly.
Terry M - 04/29/2014


Purchased as a replacement for an old bulb style that had burned out. This light is much brighter as a tail light and as a brake light. Light fit exactly with no issues. Wiring was standard and matched up perfectly with no need to splice wires. Very happy with the purchase and also very happy with etrailer.com. Ordered placed on a Saturday afternoon and was delivered Monday afternoon. Item was carefully packed to avoid possible damage. One of the best if not the best online shopping experiences I have had. Won't hesitate to order again or recommend etrailer.com. Thanks

The lights are still functioning well. No issues. Will definitely order from you again when the need arises. You run a 1st class online store Thanks again.
Buzz G - 03/23/2015


Your service is excellent but unfortunately the product did not work for me. I switched out my regular bulb lights for these LEDS which have the same plug/connection but unfortunately when my 2006 truck is off, these lights remain on and do not turn off until I disconnect the trailer electrical cord from my vehicle. Ive read some notes online about grounding for new LED's. I have a new 2015 vehicle but havent connected the trailer yet, which may solve the problem. Can follow up.

Thank you for your review.I checked your account and I see that you did not purchase any pigtails for these lights. Normally a customer will purchase the pigtail part # A45PB
3-Wire Pigtail for Optronics Trailer Lights - 3-Prong PL-3 Plug - 10" Lead
. This pigtail does need to be grounded on a bare, clean and metal surface. If you hardwired the lights they will need to be grounded as well.
-- Etrailer Expert Heather A - 01/10/2018


I have a 2006 GMC 3500 with a headache rack that takes this size stop, tail and turn signal light. I have had the truck for 10 years an gone through a few different lights - from incandescent to LED. My truck is driven in the rain, snow, sun and fog. I depend on others seeing my intended signals.... all the time. Make no mistake, this is a work truck. This product is the brightest one I have experienced thus far. I look forward to a lifetime guarantee as I keep my things for a while.

Thank you for your kind note. I just sold my 10 year old GMC, and bought a Toyota Tundra.Two things One - the new buyer was thrilled with the lighting and I believe that helped with the sale of it. Two - I will be in touch soon about lighting for my Tundra
Dave H - 03/22/2016


Product arrived promptly and in excellent condition; Online website was easy to use. Customer service and tracking of order have been above expectations. I plan to do increasing amounts of business with this etrailer.com site. Recommend other customers should consider using this website..

DrJ - 08/15/2019


My nice new utility trailer came with crummy taillights, few LEDs and some are already out. I already upgraded another trailer with surface mount Optronics which I am fantastically happy with, after 3 years and going strong. So this was an easy choice - the surface mount model is very bright so I chose this 48-LED model and boy is it nice. Plenty of light, big contrast between the brake and running light function. The running lights even emulate incandescents with a brighter center section, which to me is just shows the design quality of these lights. I'm very happy with them and there's a piece of mind knowing that the lighting at the back is now proper.


I originally had purchased one of these lights approx. one year ago and it went bad but all I had to do was send it back to Etrailer and they sent me a warranty replacement. I am very pleased with their service and follow-thru.

I have several of these lights on my snowmobile trailer and I am very pleased now with all of them.
Ken P - 04/23/2018


1990 Ranger boat trailer taillight led replacements arrived quickly. Easily installed using etrailers website video. Lights look amazing, Thanks again for a job well done etrailers.


was an exact replacement for taillight on my eagle boat trailer. Unfortunately the shipping method used was slower than a mule. took 2 weeks to arrive after it was shipped. They have got to get a better shipping system than what was used for my order.


Perfect replacement for my utility trailer taillights. I pried the old lights out of the existing grommets, unplugged the connector, plugged in the new lights using the perfectly matched connector, and pressed them into the grommets. The new lights are much brighter than the old ( which had many fewer leds).


The tail lights are very well made and quite attractive. The lights are very bright and the entire assembly is not too large. The only down side is that the mounting grommets, wiring and mounting brackets must be purchased separately


This product is to replace the incandesant lights on my Rolo cargo unit, The incandesants do not last at all well. I talked with an etrailer person on this and he directed me to a 6 led light. but when they came they did not fit the electrical plug. These ones (STL70RB) do fit and hopefully will last better in the Rolo. You should make a note of this and possibly direct Rolo to only use LED lights to improve there product.


I love the LED tail lights that I purchased for our travel trailer. Exceptionally bright and they give me a lot more confidence driving down the road both in daylight hours and after dark. The trailer manufactures should be installing these tail lights from the get go. They were easy to hookup and install and the full size foam rubber gasket makes a great seal. The picture you see with my review isn't of the tail lights.


etrailer once again knocked it out of the park once again with quality and customer service!!!


Fast delivery!!! Was an exact replacement for my Lowe boat trailer!!!


I replaced both tail lights when one of them went out so they both would be LED. They are as bright or brighter than the original equipment and work as intended. One suggestion is to use silicone spray or WD40 to make sliding into place easier.


Lights are fine. Easy replacement. Very bright and a nice upgrade. Worth the $ as an extra insurance policy in having bright brake lights. But!!, I get a bulb failure message every time I use the turn signal in my 2013 Ford Escape. Apparently this is a known problem with Ford Escapes and I need a workaround. Any LED is the issue. Trying to find a workaround.

If this light was added to the Escape itself, and not a trailer being pulled by the Escape, you will probably need to add a load resistor like part # P230004A or # P230004C.
-- Etrailer Expert Patrick B - 08/25/2015

Still working flawlessly. Great product.
Wally - 08/05/2016

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Wesbar 108121 Replacement Trailer Light
    Wesbar light 108121 is now a discontinued item but the Optronics # ST70RB is a direct replacement for it, and yes, this 6-1/2-inch oval 3-function light will work great and fit the same grommet.
    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...
  • Replacement Trailer Light for a Wesbar 203561
    Yes! I am happy to report that Optronics trailer light # STL70RB can be used as a direct replacement for Wesbar light 203561. The Optronics light requires a pigtail harness, # A45PB, since it doesn't have wires in the back. I have included a link to a video review of this light for you.
    view full answer...
  • Replacement Cover for Rear Light on 10 Ft Haulmark Trailer
    In order to find the correct replacement cover for the rear light on your 10 foot Haulmark trailer, I will need the brand name and the part number on the mounting base of your light. I have attached a link to all of our light lenses that are available.
    view full answer...
  • Recommended 6-1/2 by 2-1/4 Oval Grommet Mount LED Taillamps for Homesteader Challenger Trailer
    A standard grommet mount taillight like the Optronics # STL70RB you referenced would work well for you. The lamp measures 6-1/2 x 2-1/4 inches, and uses the # A70GB grommet that fits in a 6-3/4 by 2-1/2 rough opening. The lamps are compatible with an industry standard 3 prong plug like part # A45PB. I've linked you to a product demonstration video, click the provided link to view it.
    view full answer...
  • Replacement LED Tail Light for Trucklite Model 60
    Based on the dimensions for the Truck Lite Model 60 that you have it matches the Optronics 10-LED Trailer Tail Light # STL72RB so this light will work as a replacement for you. The 48-LED version # STL70RB that you referenced is the same size and will work too. For a grommet you would need the part # A70GB and then for a harness part # A45PB.
    view full answer...
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  • Replacement License Plate Light For 2009 Haulmark 7x12 Low Hauler Trailer
    I did some research on your 2009 Haulmark Low Hauler trailer. I was able to see several different styles of license plate lights and holders on trailers. I have attached a link to our product page for license plate lights. Some have the license plate holder attached to the assembly and some are just the lights that are mounted to light the license plate. There are different opinions about mixing LED and incandescent lights on the same circuit. We have had customers that wire them in the...
    view full answer...
  • Is Optronics Trailer Tail Light # STL70RB Sold in Pairs or as a Single Light
    The Optronics Trailer Tail Light # STL70RB referenced in your question is a single light assembly. If you need a pair of lights you will just need to order 2. For the rubber grommet you will use part # A70GB. I have attached an installation video for this assembly that you might also find helpful.
    view full answer...
  • Replacement LED Trailer Lights for Kaper KII Lights for a 2009 Haulmark Trailer
    The lights that you have referenced, # STL70RB, do have the same measurements as the Kaper lights you have with the exception that they do not stick out as far from the trailer. As for the clearance lights I do not have one that is an exact match for the dimensions you have given. A close match is # MCL65AB. It measures 3-15/16 inches long and 1-1/4 inches wide. To mount it you would need a bracket like # A65PB or # A67CB.
    view full answer...
  • What is Size of Optronics Trailer Lights # STL70RB
    This is a really good question that we've had before. So on the top of the page size listed is how it's organized on our page. The bottom size is the actual size. If we listed all the different exact sizes on the category page there would be an overwhelming number of choices for the customer. So we use approximate size in the categories and exact sizes in the descriptions.
    view full answer...
  • Does Optronics Trailer Light, # STL70RB, Fit Wesbar 203561 Light For Upgrade To LED Lights
    Yes, the Optronics Trailer Light, # STL70RB, will replace the Wesbar 203561 to upgrade to LED lights. You will want to check the factory grommet when you remove the light, if the factory grommet is in good condition you can use it with the LED upgrade. If the factory grommet is worn or shows any signs of damage, now is the time to replace it. You would use the Optronics Rubber Grommet, # A70GB. Same thing on the 3-prong plug connector, check it also to make sure it is in good condition....
    view full answer...
  • Replacement Tail Lights for 2006 Prestige Trailer Mariah Boat Trailer
    We have both standard incandescent and high-efficiency LED type boat trailer lights you can choose from and we also have LED-type replacement "bulbs" that let you convert existing light fixtures to brighter and less-power-hungry LED operation. It sounds like you have wraparound lights like Wesbar # 271595 and # 271594, which are the efficient LED type. These lights are very close to your dimensions. These 8-function lights are submersible and they include side and rear reflectors. If...
    view full answer...
  • After Installing LED Trailer Tail and Clearance Lights Only Turn Signals Work
    It is not likely that the clearance lights, # MCL95RB, are the issue since they ground through the mounting hardware and only have one power wire that goes to the running light circuit. Still it is worth checking to make sure that the grounds are attached to clean and corrosion free bare metal surfaces. On the tail lights, # STL70RB, the red wire is for brake lights and turn signal, black is for running lights. And white is the ground. You can't always go by color, you have to go by...
    view full answer...
  • How to Replace Optronics Taillight Part # STL70RB on a Cargo Trailer
    If your trailer has flush mount lights like the Optronics Sealed Oval LED Tail Light, # STL70RB, then I have two ways for you to remove your old taillights from your Haulmark Cargo Trailer. These taillights are sealed, therefore, you need to change the entire assembly, not just the bulbs inside. If you have access to the backside of the light from the inside of your cargo trailer and your lights are hardwired, then you need to cut the wires close to the old taillight and gently push...
    view full answer...
  • How to Find Replacement Tail Lights for a 28 Foot Haulmark Travel Trailer
    To determine which lights will work for your 28 foot Haulmark travel trailer, you will need to check the light housing or the lens of the light and try to find a model number and manufacturer if possible. If you think the sealed 6-1/2 inch oval LED Trailer Lights # STL70RB will work on your Haulmark trailer, then you can purchase them and, if there is a problem, call our customer service department at 1-800-298-8924 and they will take care of you. The dimensions of the light are listed...
    view full answer...
  • Need Replacements for Kaper KII LED Tail Lights Installed in Tailgate
    In cases when tail lights are installed within a tailgate it may sometimes be that the hinge mechanism in the tailgate does not provide a good enough electrical ground connection; this can cause some lighting functions to not operate properly. If this is the case then routing a separate jumper ground wire from the light fixture ground wire to the vehicle/trailer frame can provide a better ground which will allow more current to pass. It is also possible that the wiring is carrying the...
    view full answer...
  • LED Replacement Tail Lights for Incandescent Type on 2013 Calico Horse Trailer
    I was able to find images of your Calico horse trailer's Kaper-brand oval tail lights. These appear to be grommet mount types that use a rubberized ring for installation, similar to the LED light you referenced, Optronics # STL70RB. This Optronics oval light measures 6-1/2 x 2-1/4 x 1-1/8-inches deep. It mounts using their grommet # a70gb and connects using a standard 3-pring plug like # A45PB. If your lights have the same dimensions, mounting style and connector type as this Optronics...
    view full answer...
  • What is the Replacement Light for the Princess PowerFist 8186587
    I have a solution for you but the Princess PowerFist replacement light 8186587 is a sealed unit in which there is no way to replace the bulb. Instead use the Optronics Trailer Tail Light - Stop, Turn, Tail - Submersible part # ST70RB. This light is the same size and design. It uses the same connector as the other so you won't have to rewire anything. It simply plugs in then gets pressed into the grommet that holds it. The biggest benefit here is that you will be using an industry leader...
    view full answer...
  • Optronics Trailer Lights # STL70RB and # LED Light Brightness
    I spoke with my contact at Optronics and was informed that the Lumen difference between part # STL70RB and part # STL22RB LED stop, turn and tail lights is not tested by Optronics. I was told that the more LED lights in the tail light the brighter the light will be. I have seen these lights on display and these lights are very bright especially as compared to incandescent lights.
    view full answer...
  • How to Wire Optronics Trailer Tail Light # STL70RB
    The 3-Wire Pigtail # A45PB for the Optronics Trailer Tail Light # STL70RB that you referenced features a black wire for the tail/running lights, a red wire for the turn/brake signal, and a white wire for ground. It's very likely that on your trailer the green wire is for right turn/brake lights, the yellow wire is for left turn/brake lights, and the brown wire is for running lights. Since trailer wiring isn't standardized it is still a good idea to test the wires on your trailer for...
    view full answer...
  • Installation of LED STL70RB Upgrade from Incandescent Sealed ST70RBTK
    I have a solution for a mounting bracket for the LED trailer lights # STL70RB, but the black outer case of the # ST70RBTK is glued to the light and not sold separately. The # STL70RB will fit into the # A70GB grommet and that grommet to the # BK70BB mounting bracket or # MT-BOX65 mounting box. Unfortunately, there is no STL70RBTK offered. I have linked all the above mentioned parts to this page for your convenience.
    view full answer...
  • Is there a Noticeable Difference in Brightness Between a 48 Diode Light and 68 Diode Light
    The more LEDs you have the brighter the light will be. There may not be much visible difference in the day but at night it will likely be noticeable. If you switch one light to # STL70RB you would want to change the other side too to keep things the same in terms of light output and overall appearance. I have linked a video showing the # STL70RB lit up. Not being able to find a number on a tail light is common. In those situations you would want to go by the dimensions of the light and...
    view full answer...
  • LED-Type Lighting Elements to Replace Standard Incandescent Type Bulbs
    We offer LED-type replacements for the standard incandescent bulbs supplied in many types and brands of trailer lights. The linked page displays all such LED replacements which can be substituted for many bulb types. The filters on the page allow you to select the bulb number for which you want a replacement LED unit. For example, as a replacement for the popular 1157 bulb we offer part # CM93236. Since LED lights use only a fraction of the power of standard incandescent lights they...
    view full answer...
  • Warranty and Candela of the Trailer Tail Light # STL70RB
    I checked with Optronics and the Trailer Tail Light # STL70RB has a limited lifetime warranty that would cover manufacturer defects such as LEDs that stop working. This light is rated in candela. My contact at Optronics said that it has a candela output of 14 cd for the tail lights and 201 cd on the stop and turn lights. I attached a review video for more info for you to check out as well.
    view full answer...
  • Oval LED Trailer Light Option That will Also Provide a Reflector
    I may have a solution for you, however, the Optronics Sealed 6-1/2 Inch LED Trailer Light, # STL70RB, does not contain reflectors. At this time we do not have any 6-1/2 inch oval tail lights that have reflectors in the lens. Instead, I would recommend using the Flange Mount Oval LED Trailer Light, # STL78RB, and adding the Snap-On Reflector Ring, # A78RXB. As mentioned in the title of the product, this ring will simply snap over the light on top of the mounting flange to provide a reflector...
    view full answer...
  • Will the LED Tail lights and the 3 Wire Pigtail Fit on a 6 X 12 Foot Haulmark Enclosed Trailer
    The Sealed, 6-1/2 inch Oval LED Trailer Stop, Turn and Tail Light, will fit in the factory grommet if the original light measures 6-1/2 inches overall width and 2-1/4 inches overall height. This is the standard size of most of the lights installed on enclosed trailers. I have seen some lights that are 7 inches overall width and if your original is this size then the 6-1/2 inch light will not fit in the original grommet. At this time we do not carry a 7 inch oval taillight The 3 wire pigtail,...
    view full answer...
  • What Size Hole Saw Should be Used to Install Optronics Trailer Light, # STL70RB
    I went out to the warehouse and grabbed an Optronics Trailer Light, # STL70RB, and the compatible rubber grommet, # A70GB, put them together and took some measurements. The part that will be inserted into the back of the trailer is 2-3/8 inches wide by 6-3/8 inches across. If you plan on using a hole saw I would start smaller, like a 2 inch. You can then gradually make the hole larger until the grommet with the light in it fits. This light will also require the Straight 3-Wire Pigtail...
    view full answer...
  • LED Trailer Taillight Replacement Recommendation
    LED lights are more durable and can withstand more than incandescent bulbs. Regular bulbs are pretty fragile by comparison. That is not to say that the LEDs are indestructible but they will hold up better than regular bulbs. I attached a page that has all of the LED trailer taillights we offer that could possible fit. The part # STL8RB and # STL9RB are very popular options that you might consider. I attached an install video for these lights for you to check out as well.
    view full answer...
  • Adapter Recommendation for Bulb Out Code on Vehicle After Installing LEDs on Trailer Wiring
    Did the problem start right when you installed the LED trailer light? Does it go away when the trailer is disconnected? If so, then the problem has to do with the reduced amperage draw of the LED taillights. An easy fix then would be to use the # TR20141 instead of your current 7-way to 5-way adapter. This product has diodes built into the adapter so that your vehicle will think the trailer lights are incandescent.
    view full answer...
  • Availability of LED Version of Optronics Taillight ST70RB
    There is an LED version of the # ST70RB with the part # STL70RB.
    view full answer...

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