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  1. Trailer Lights
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Backup Light w/ Chrome Housing, Surface Mount, 1 Wire - Clear

Backup Light w/ Chrome Housing, Surface Mount, 1 Wire - Clear

Item # BU11CS
Our Price: $8.21
You Save: 65%
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.26 lbs
In Stock
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Clear backup light; surface mount; chrome housing; 1-wire; replaceable bulb Great Prices for the best trailer lights from Optronics. Backup Light w/ Chrome Housing, Surface Mount, 1 Wire - Clear part number BU11CS can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - BU11CS

  • Tail Lights
  • Round
  • Incandescent Light
  • White
  • 3 Inch Diameter
  • Surface Mount
  • Backup
  • Non-Submersible Lights
  • Optronics

Clear backup light; surface mount; chrome housing; 1-wire; replaceable bulb


  • Clear backup light
  • Chrome housing
  • Surface mount
  • Single-wire design grounds through mounting hardware
  • Replaceable bulb
  • Diameter: 3-1/4"
  • Limited 3-year warranty - excludes bulbs

Surface-mount backup light with chrome housing.

Single-wire design grounds through mounting hardware.

Replaceable bulb.

BU11CS Optronics Backup Light with Chrome Housing, Surface Mount, 1-Wire - Clear

Alternate part number: BU-11CS

California residents: click here

Video of Backup Light w/ Chrome Housing, Surface Mount, 1 Wire - Clear

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 - BU11CS Review

Today, we're going to be reviewing part number BU11CS. This is the back-up light with a chrome housing from Optronics. The clear back-up light is going to feature an incandescent bulb with a chrome housing, and the lens is going to be made from a polycarbonate material. It's a surface-mount design. It's going to have the padded grommet back here for a weather-tight connection and installation. It's a single-wire design, and that's going to be your power wire for your light. Then, the system's going to ground through the mounting hardware. The bulb is replaceable.

It's going to include a couple of screws for mounting. The two screws that are already installed on the housing are just going to be holding the lens in place. To access the mounting holes, you have to remove the lens, and then there's going to be four holes. I'm going to go ahead and remove the grommet, that way we can get a better look. There's going to be four holes that go around the socket connection, and that's going to be your actual mounting holes. If we take a measurement, the distance that we have from the center of one mounting hole to the center of the other, going straight across, that's going to measure one and 3/8 of an inch, center on center.

Then, diameter of the actual chrome housing, so, the amount of space that it's going to take up when it's fully installed, it's going to give us a diameter of 3 and 1/4 of an inch. We're going to go and hook it up to our power source and show you what it looks like with some power running to it and with the overhead lights turned off. We're going to go and make our ground connection to one of the exposed screws on the bottom, and then we'll connect the power wire. You can see here, it's going to send out a nice, bright, consistent signal. Again, this is going to be your clear back-up light, featuring an incandescent bulb with a clear polycarbonate lens. That's going to do it for today's review of part number BU11CS. This is the back-up light from Optronics. .

Customer Satisfaction Score:

Customer Reviews

Backup Light w/ Chrome Housing, Surface Mount, 1 Wire - Clear - BU11CS

Average Customer Rating:  4.8 out of 5 stars   (76 Customer Reviews)

Clear backup light; surface mount; chrome housing; 1-wire; replaceable bulb


I need rear turn signal lights for my fj40 and separate from the brake lights. I opted to use the BU11CS for turn signals rather than back up lights. I am using 1156a bulbs to get the amber effects. The new lights are installed adjacent to the brake lights and fit nicely. The only challenge was to get 3/4” holes drilled for the new light housing. Happy to now have working brake/turn signal lights!


Product is a modern day replacement for the Yankee 975 light. I took my old Yankee chrome rings and light housing and rebuilt them with the parts from this light. The plastic beehive, wire, bulb, and foam gaskets fit well. For the price and what I’m doing, this worked out great. They’re going on a 1966 C10. Shipping was fast too. Good company to deal with.


My 1975 motorhome had no factory backup lights so wired these to a switch that I toggle when I back up. I made mounting brackets and put the lights on my rear bumper because there was no place to mount them in the bumper or on the motorhome to be able to run wires from underneath to them.


I bought them as a replacement for the backup lights on my 1955 Pontiac. They were the correct size and general shape. Worked fine for what I needed.


Works good, wish they had a separate ground wire.


Purchased a pair to replace the backup lights on my 68 Airstream. They fit perfectly, were easy to install and look great. Made in the USA, which was a plus too!


I used these to add backup lights to the wheel wells on my trailer. I back it in to my driveway often after dark, and sometimes in the woods or campsites, and desperately needed a way to see the back better during this already harrowing experience.

While I was outfitting the rest of the trailer with LEDs, I was a little concerned that these were not LED. However, they put out a good amount of light. It is an amber colored light, and it's not as much as the LED backup lights I installed, but it is suffient light to improve things.

Because I mounted them forward and out wider then the rear of the trailer, they do a great job of illuminating things that would otherwise be dark.

They look awesome on the trailer. I installed them on the most precarious place I could imagine (wheel well) and they have worked 100% of the time, so reliability seems great.

Glad I bought these.

Really great! Haven’t had any issues with them whatsoever despite having put a ton of miles on the trailer. Every time I back up after dark, I am glad these are there.
John - 09/30/2021




Had bought a set of these for a trailer years ago, so when I realized I was backing into my driveway and couldn't see the garage door, I should probably get some on my truck. Easy install, and plenty of light. Highly recommend these.


Easy to adjust to fit my application (I am making a RatRod) and the look is awesome; the directions inside the package were easy to follow along with the ease of "tear down" to get to the attachment holes.

I sold my RatRod, but the person who bought it loves the look and way that it operates.
Dirt - 02/08/2019


Good service and received order in a timely manner


Fit nice on my 1968 Jeep Gladiator


Near identical replacement to the backup lights on my 1949 Pickup.


Exactly as described! Great buy


Delivered when promised and costing half the price of the same product on [online]. Good communication from the company. I'd definitely do business with them again.


happy with this purchase, it looks a lot like the reverse lights on my 1968 dodge d200 truck, thank you adam for your help.


Match my vintage porch light on camper rebuild. Etrailer has been great to work with!


Purchasing was an easy process, quality product for the money.


Hard to find part. Nice


Replaces old porch light on vintage camper perfectly. Looks great!


I specifically wanted incandescent lights (not a fan of LED!) to use as back-up lights on my 1-ton dually flatbed. I installed these BU11CS lights under the deck on the frame rails with brackets that I fabricated, where no back-up lights had ever existed. They are very visible, and their stylish appearance looks almost like factory! I am very pleased how well they light up the dark area to the rear of the truck. They are a good value for the price in my opinion, a very good choice!


Product was not a disappointment. Arrived in great shape in a timely manner. Was just what I was looking for


They say a picture is worth a thousands words. I will say they are perfect. Just what I wanted and they look amazing. but you be the judge. This is my 1947 Spartan that I an restoring from the ground up. Not restoring to original, but they look great for the era.


Works great, installed on my 65 chevy c10 as back up lights, looks period correct


I ordered these for a vintage camp trailer. These are not an exact match but really close. The quality is nice compared to a lot of the plasticy stuff that is out there. Yes the lens is plastic and the housing is flash zinc coated (today's version of chrome plating) but the quality is as good as you are going to find without costing you an arm and a leg. My only big wish was that it was available with a red lens... but that is not etrailer's fault at all. Decent quality, good price, decent shipping cost/time... 4 stars.

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