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Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Oval - Clear Lens
Optronics

Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Oval - Clear Lens

Part Number: BU70CB
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6-1/2" x 2-1/4" Oval. Waterproof incandescent light provides backup light function for trucks or trailers. Shock proof socket protects bulb. Recessed mount with grommet (sold separately). Accepts standard 2-prong plug. Great Prices for the best trailer lights from Optronics. Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Oval - Clear Lens part number BU70CB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (205)
  • Q & A (0)
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Optronics Trailer Lights - BU70CB

  • Tail Lights
  • Oval
  • Incandescent Light
  • White
  • 6-1/2L x 2-1/4W Inch
  • Recessed Mount
  • Backup
  • Submersible Lights
  • Optronics

6-1/2" x 2-1/4" Oval. Waterproof incandescent light provides backup light function for trucks or trailers. Shock proof socket protects bulb. Recessed mount with grommet (sold separately). Accepts standard 2-prong plug.


Features:

  • Oval backup light for trailers and utility trucks
  • Sonically sealed, waterproof housing and lens unit is submersible
  • Shock proof socket protects incandescent bulb
  • Incandescent bulb can be easily replaced
  • Durable polycarbonate housing and lens
  • Clear lens covers incandescent bulb
  • Compatible with 12V DC systems
  • Recessed mount with grommet (A70GB - sold separately)
  • Accepts industry standard 2-prong plug (A45CB or A49PB - sold separately)


Specs:

  • Dimensions: 6-1/2" long x 2-1/4" tall x 2-3/8" thick
  • Bulb type: incandescent
  • Power draw at 12.8V: 0.4 amps
  • 3-Year warranty


Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # SE2238W
Wesbar # 203526
Truck Lite # 60204/60284
Grote # 62521
Peterson # M416
Bargman # 40-06-003

Optronics BU70 Series Sealed Back-Up 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.



BU70CB Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Oval - Clear Lens

Alternate part number: BU-70CB




California residents: click here


Customer Satisfaction Score:


Customer Reviews

Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Oval - Clear Lens - BU70CB

Average Customer Rating:  4.8 out of 5 stars   (205 Customer Reviews)

6-1/2" x 2-1/4" Oval. Waterproof incandescent light provides backup light function for trucks or trailers. Shock proof socket protects bulb. Recessed mount with grommet (sold separately). Accepts standard 2-prong plug.

by:

The light has no apparent mounting method. No screw or bolt holes. Can’t drill mounting holes without removing the lens, which appears to be unremovable.Makes sense, it’s watertight. No instructions at all.

My previous purchases at strainer have always been satisfactory, at the very least. I’ll have to return this one.

Jenny N. profile picture

Jenny N.

7/11/2023

This light is a recessed light that is meant to be installed into a pre-existing hole using a grommet part # a70gb. To wire it in you can use plug part # A45CB or plug part # A49PB. If this is not the type of light that you are looking for then I am happy to look for one that does. Would you be able to send me a picture of the light that you are replacing.

Tom profile picture

Tom

7/12/2023

Jenny, attached is a photo of the trailer lamp that I’m trying to replace. Actually, I only need the lens, the rest of the lamp is ok. I had purchased a matching lamp from eTrailer several years ago but couldn’t locate it in your inventory. I’m happy to purchase the whole lamp and remove the lens. If you can help with that, I would appreciate
JennyN profile picture

Jenny N.

7/12/2023

Thank you for the picture. Based on the picture it looks like you have like part # RVPLL13AB which has an on and off switch at the bottom with an amber lens. I could not tell if yours had a switch or not. If this is your light then part # APLL11AB would be the replacement lens. In your order history you had ordered part # RVPLL13CB from us which has a clear lens a few years ago. The replacement lens for that clear light would be part # OPT47FR.
Tom profile picture

Tom

7/17/2023

@JennyN Jenny, attached is a photo of the trailer lamp that I’m trying to replace. Actually, I only need the lens, the rest of the lamp is ok. I had purchased a matching lamp from eTrailer several years ago but couldn’t locate it in your inventory. I’m happy to purchase the whole lamp and remove the lens. If you can help with that, I would appreciate it.


by:

Fit well. On the boat trailer. Sealed well. I would purchase again

Larry profile picture

Larry

4/20/2024

Works well. Sealed well. Boat trailer.



by:

Great to find replacement lighting for 16yr old trailer. Simple installation, very good pricing. It works!!! Overall easy to find, order & install.

Tony C. profile picture

Tony C.

6/22/2018

It still works and fits like the original. I now keep a spare. I have used etrailer for several trailertowing parts now and the professional knowledge and service are top-notch!



by:

I'm highly impressed with these lights. I had one of the original amber Triton insignia running lights go out on my 2009 bass boat. Upon searching for a replacement I found these white lights could be used also in its place. After putting my order in, the lights arrived a day earlier than projected, came nicely packaged, AND the electrical connections came pre greased with dielectric grease. Very simple plug and play installation. THESE THINGS ARE BRIGHT!



by:

Great service excelent price exact replacement
Product met my expectations product as advertised
from happy custumer
THANKS, ETRAILER AND MATTHEW C



by:

The light fit perfectly! It was exactly like the original that came on the boat trailer which needed to be replaced. Very easy to replace.



by:

The light fit perfectly on my rear ranch hand bumper, and the package arrived in a timely manner. Quick and easy fix!



by:

Replaced the existing light with no iss ues.



by:

Excellent service, great price, and speedy delivery.



by:

Buy these they are water resistant. Don’t buy the junk on Amazon! You should use e trailer for all your lighting needs!



by:

Needed taillights ASAP could not find them anywhere but then luckily found them on etrailer, shipped and had in 3 days good job



by:

Ordered bulbs for a CM Truck bed. Once again Perfect fit.



by:

I've purchased 4 replacement lights for my boat trailer, shopping on their website was easy, shipping was quick and the products worked great!

Gary profile picture

Gary

8/5/2016

the lights are still burning bright!



by:

Lights work as desired.

Excellent
Customer Service.
Repeat Buyer.



by:

It got here so quickly!! It plugged right in and works just fine. Since I know its all good, I'm going to order another for the other side!



by:

Back up lights are a direct replacement for my trailer lights. Lights are much brighter than the original lights were.

George W. profile picture

George W.

4/12/2015

Product is working great after a year.



by:

Quick ship and all of your staff are very helpful.



by:

First of all I want to thank etrailer for being in business, I had looked all around trying to find the backup lights for my trailer. I found etrailer on the web and the rest is history, web site is easy to navigate, good product description, good pricing and items were in stock and shipped the same day I ordered, I got quick responses from etrailer reguarding my order and shipping details, I used regular shipping and received my order 1 week from the day I ordered, I will be telling my friends about etrailer and I will order from etrailer for my next trailer needs in stead of spending my time shopping around.



by:

Quick ship



by:

Arrived quickly and was just what I nee ded.



by:

Quick ship. Light works. Very satisfied.



by:

clear sealed backup lights were a perfect fit and work great at a great price with free shipping. I will use you guys again.

Jake C. profile picture

Jake C.

5/26/2016

Good to go.



by:

Exactly what I needed with fast shipping! Thanks!



by:

Very tight fit for dock lights on motorhome. Had to trim fiberglass to fit. Electrical Connection is exact match.

Peter profile picture

Peter

1/5/2020

Great very pleased with this item



by:

Product was just as shown & described on the site, great service and prompt delivery, will order from etrailer again, Thanks to everyone involved in getting my order to me

Mike G. profile picture

Mike G.

5/25/2016

Great, no problems


25
205
Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • How Much Power Does Optronics Backup Light # BU70CB Use
    The Optronics backup light # BU70CB is rated at 0.4 amps power draw at 12.8 volts. Wattage isn't something that is calculated for trailer lights since they are not tested for their rates of energy conversion. I have included a link to a video review of this light for you.
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  • Is the LED Oval Trailer Utility Light Brighter than the Incandescent Oval Trailer Back Up Light
    I went out to the warehouse and checked all of our clear oval lights. The Sealed, 6-1/2 inch LED Clear Oval Trailer Utility Light, 10 Diode, item # BUL72CB, whiter light than the light emitted by the incandescent Oval Trailer Back Up Light, item # BU70CB, but the light does not illuminate as large an area as well. The advantages of the LED light is that it does not draw near as much amperage as the incandescent light, it lasts much longer and it does not produce the heat produced by incandescent...
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  • How to Cut a Grommet Hole for Installation of the Oval Trailer Tail Lights # BU70CB
    The easiest way to cut the oval hole for the Rubber Grommet, # a70gb, to install the Optronics Light part # BU70CB, in my opinion, would be to use a Light Mounting Bracket for 6-1/2 inch Oval Trailer Lights, BK70BB, as a template and then use a hole saw the correct size to cut a hole on each end of the mounting location. Then, use a angle grinder with cut off wheel or a reciprocating saw with metal cutting blade to cut the straight top and bottom sides of the hole. The correct width for...
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  • Finding Clear Trailer Light to Replace SAE R 97 DOT
    The SAE number isn't typically a great way to track down replacement lights as it's not a part number so I don't know exactly what light you are looking for but the Optronics light part # BU70CB that you referenced is a clear light that is DC powered. You would need a grommet part # A70GB to mount it and then also the 2 prong wiring harness # A45CB.
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  • 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...
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  • Will Optronics Trailer Back Up Light Work With 2-Wire Pigtail
    I called my contact at Optronics and asked about the pigtail that can be used with the Oval Trailer Back Up Light, part # BU70CB. I was puzzled by the notes that say you can use the 2-wire pigtail, part # A45CB since the light has a 3-wire plug on the back. My contact said that on the BU70CB, the third plug is a dummy and is not used on this light. The A45CB will plug into two of the plugs and work just fine without compromising the waterproof seal.
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  • How to Wire Up a Boat Trailer with a Reverse Light on a Vehicle with a 4-Way Connector
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    Image 1 for
  • Does The Optronics Trailer Light, # BU70CB, Have A Plug-In Wire Attached
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  • Wiring Plug Recommendation for the 6-1/2 inch Oval Light part # BU70CB
    I checked with Optronics and they recommend the part # A45CB and part # A49PB for plugs to fit the 6-1/2 inch Oval Light part # BU70CB that you referenced. It could be that your # A45CB just isn't orientated correctly so that it installs correctly, or that you are trying to install the plug into the wrong pins.
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Kathleen M
Video by:
Kathleen M
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Cole B
Installed by:
Cole B

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