bing tracking image
  1. Trailer Lights
  2. Optronics
  3. Tail Lights
  4. Oval
  5. LED Light
  6. White
Optronics LED Backup Light for Truck or Trailer - Submersible - 6 Diodes - Oval - Clear Lens

Optronics LED Backup Light for Truck or Trailer - Submersible - 6 Diodes - Oval - Clear Lens

Item # BUL12CB
Our Price: $21.23
You Save: 33%
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.26 lbs
In Stock
Optronics Trailer Lights - BUL12CB
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
6-1/2" Oval. Waterproof trailer light is certified for backup light function in a 2-lamp system when a pair of lights is installed. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts 2-prong plug. Great Prices for the best trailer lights from Optronics. Optronics LED Backup Light for Truck or Trailer - Submersible - 6 Diodes - Oval - Clear Lens part number BUL12CB can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (42)
  • Q & A (0)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - BUL12CB

  • Tail Lights
  • Oval
  • LED Light
  • White
  • 6-1/2L x 2W Inch
  • Recessed Mount
  • Backup
  • Submersible Lights
  • Optronics

6-1/2" Oval. Waterproof trailer light is certified for backup light function in a 2-lamp system when a pair of lights is installed. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts 2-prong plug.


  • Oval backup light for trailers and utility trucks
    • Certified for backup light function in a 2-lamp system when a pair of lights is installed (second light sold separately)
  • 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
  • White LEDs with clear lens
  • Recessed mount with grommet (A70GB - sold separately)
    • Light fits into a 6.85" long x 2.5" tall hole
  • Accepts industry-standard 2-prong plug (A45CB or A49PB - both sold separately)
  • DOT compliant
    • Meets FMVSS 108 requirements in any 360-degree position


  • Dimensions: 6-1/2" long x 2-1/4" tall x 1-3/4" deep
  • Diodes: 6
  • Power draw at 12.8 volts: 0.26 amps
  • Lifetime warranty on LEDs

Optronics BUL12 Series Fleet Count LED Back Up 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.

PL-2 Wiring Connection

Optronics PL-2 Connection

This light has an industry-standard PL-2 connection as pictured above. The light accepts a 2-prong plug (sold separately). The plug connects to 2 of the points on the PL-2 connection for power and ground. And the plug covers the unused third point on the connection to seal it against dirt and moisture.

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.

BUL12CB Optronics Fleet Count 6" Oval LED Reverse Trailer Taillight - 6 Diodes - Clear Lens

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Optronics LED Backup Light for Truck or Trailer - Submersible - 6 Diodes - Oval - Clear Lens - BUL12CB

Average Customer Rating:  4.8 out of 5 stars   (42 Customer Reviews)

6-1/2" Oval. Waterproof trailer light is certified for backup light function in a 2-lamp system when a pair of lights is installed. Durable polycarbonate housing and lens. Recessed mount with grommet (sold separately). Accepts 2-prong plug.


Yes, I ordered six BUL12CB led lights, but I received six MCL 131RC210B side marker lights which I did not order. I just send an email to etrailer to find out what can be done about this. I don't want to have to pay a return fee and I wanted these lights by 9-14-2022 for an upcoming horse show.


Perfect fit. Looks great with other led tailights. I've bought other items from etrailer in the past. I've never been dissatisfied.


These reverse lights dress the back of of our flat beds nice and there real bright.


Lights were easy to install. Twenty minutes and both backup lights were done.


I called and spoke with Lisa D for a special order product that E-trailer needed to order directly from the manufacturer and have it added to their website, and Lisa D kept me updated every step of the way. She got the products order and shipped with a very quick turn around time, which was great b/c I couldn't find any company that could assist me with ordering the lights that i wanted. Very pleased with E-Trailer and Lisa D.


Ordered new LED clearance lights, taillights and clear interior lights to replace the non LED versions. They were shipped immediately with a confirmation. They were exactly as illustrated and what we needed for our horse trailer. Also came at a nice price!!
Would recommend shopping on their site


Have had these installed on our boat trailer as a replacement for the original light for a year now and still working great every outing. Products from etrailer never disappoint.


These lights are awesome. We originally installed them on one of our heavy duty utility trailers and now we are adding them to our flatbed utility truck as well. Nice and bright, sleek design, easy wiring, and great flush mount fit all add up to a really terriffic product!!


Added these lights to rear bumper (ranchhand) of my truck. Perfect fit and throw a lot of light. I use them in no and low light situations for hooking up the tow bar for towing my Jeep and for backing up.


Great fit and look nice.


As always Etrailer comes though with inventory on hand.They send parts in a timely manner and quality is number one.


Had problems backing my boat trailer in poorly light areas. Added the lights made it easy to get the trailer into the water.


What a great customer service experience!
Pat and Angela provided info on the parts i needed.
I will be ordering from etrailer again!


etrailer has the best price.There web site helps you research your product.Last how can you beat free shipping.Thanks


Great back up lights. Much brighter than the originals. They are working fine 1 year later.


the best light ever


Excellent products!exactly as described and a perfect fit for my application. Very fast shipping


Great Customer service


Lights are bright, plug n play


Yet to install. Test connection looks great.


great parts, hook up was easy and the lights works just as advertised


Super Fast Delivery! Correct and QUALITY parts!


The items I ordered were exactly what I needed. The price was great and I received
them very fast. A great company to do business with.


as of now they are brighter than the old lights


The shipping and it was fast the product was just as I was described and works perfect I’ll be sure to use this company again.

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • What is the Candela Output of Optronics 6-1/2 Inch Incandescent and LED Tail Lights?
    I do recommend you move to LED lights as they are going to last much longer than the incandescent lights on your horse trailer. As far as light output, Optronics generally measures their lights in candelas instead of lumens though at a distance of 1 foot candela is equal to lumens so you should have a good idea of how bright the lights are. I contacted Optronics and the representative was able to give me the candelas of each of the lights you were asking about. The incandescent # BU70CB...
    view full answer...
  • Oval LED Reverse Lights with Grommet for Flatbed Trailer
    We have exactly what you are looking for in terms of an LED reverse light that fits with a grommet for your flatbed trailer. The Optronics LED Backup Light for Truck or Trailer - 6 Diodes # BUL12CB or the same light with 10 Diodes # BUL10CB can be mounted to your trailer with PVC Grommet for 6-1/2" Oval Trailer Tail Lights # A70GB and you will just need a 2-wire pigtail for the lights. For this you can use 2-Wire Pigtail # A45CB or Right Angle 2-Wire Pigtail # A49PB. I have added links...
    view full answer...
    Image 1 for
  • How To Prevent Water From Getting Between Oval Trailer Light and Grommet
    The Optronics LED Backup Light for Truck or Trailer part # BUL12CB is submersible yes but the fit inside the PVC Grommet part # a70gb is not water tight. Therefore, water could indeed get between the light and grommet but the grommet is not really designed to keep water out but rather just to hold the light in place. However, if you were to add gasket maker like part # LT37467 around the light and inside the grommet that would then give you your best chance of keeping water out.
    view full answer...
  • Recommended Clear/Frosted LED Replacement Backup Light Equivalent to Optronics ST70RB
    For backup lights for your horse trailer I recommend the # BUL12CB Optronics LED Backup Light for Truck or Trailer - Submersible - 6 Diodes - Oval - Clear Lens. This has the same dimensions as the # ST70RB at 6-1/2" long and 2-1/4" tall. The depth is less at 1-3/4" since it is an LED and not incandescent. If you want to replace the grommet when you replace the lights, I recommend the #a70gb PVC Grommet for 6-1/2" Oval Trailer Tail Lights. I have attached a video review for your reference.
    view full answer...
  • Reverse or Utility Lights to See When Backing Up Cargo Trailer
    If your trailer has a 7-Way connector and the vehicle side has the center pin active when the vehicle is in reverse then you can install backup lights on the trailer and wire them to the center pin. You can use 2 of backup light # BUL12CB 2 of grommet # a70gb 2 of bracket # BK70BB And 2 of pigtail # A49PB If you do not have a 7-Way but just a 4-Way instead you could wire a utility light such as # TLL48FB in with the running light wire on the trailer and have the utility light run on a...
    view full answer...
  • Is There a Class II Trailer Hitch Receiver Available for a 2008 Chrysler Sebring Convertible
    The only trailer hitch receiver option for your 2008 Chrysler Sebring Convertible is the Draw-Tite Sportframe # 24871, which is only a Class I hitch. Due to the design of your Sebring, there are no Class II options available. This trailer hitch has a Gross Trailer Weight (GTW) of 2,000 lbs and a Tongue Weight (TW) of 200 lbs. I checked an online version of a manual for you Sebring and if had the same weight capacities that this hitch has, but you will want to check your copy of the owner's...
    view full answer...

Do you have a question about this Trailer Light?

  • Why

    At we guarantee:
  • Real product know-how.

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

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

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

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

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

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

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

Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Cole B
Installed by:
Cole B
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Amy B
Written by:
Amy B
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M

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