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

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

Item # BU45CB
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4-1/4" Diameter round. Waterproof, incandescent light provides backup light function for trucks or trailers. Shock proof socket protects bulb. Flush mount with grommet (sold separately). Accepts standard 2-prong plug. 1 bulb. Lowest Prices for the best trailer lights from Optronics. Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Round - Clear Lens part number BU45CB can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
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  • Reviews (59)
  • Q & A (0)
  • Videos (1)
  • Photos
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Optronics Trailer Lights - BU45CB

  • Tail Lights
  • Round
  • Incandescent Light
  • White
  • 4 Inch Diameter
  • Recessed Mount
  • Backup
  • Submersible Lights
  • Optronics

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


Features:

  • Round 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
  • Flush mount to trailer with grommet (A45GB - sold separately)
  • Accepts industry standard 2-prong plug (A45CB or A49PB - sold separately)


Specs:

  • Dimensions: 4-1/4" diameter x 2-1/16" thick
  • Bulb type: incandescent
  • Power draw at 12.8V: 2.182 amps
  • 3-Year warranty


Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # SE4000W
Wesbar # 3545
Truck Lite # 40204
Grote # 62421
Peterson # 415
Bargman # 40-01-003


Optronics BU45 Series Sealed Backup 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.



BU45CB Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Round - Clear Lens

Alternate part number: BU-45CB




California residents: click here


Video of Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Round - Clear Lens

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 - BU45CB Review

Today we're going to be reviewing part number BU45CB. This is Sealed, 4" Round Trailer Back Up Light from Optronics. The clear, round trailer light is going to function as a backup light. Featuring a sealed, waterproof housing and lens unit. Does have a corrosion resistant design. As well as a heavy-duty, long-life incandescent bulb.

The bulb is going to sit in a shockproof socket that's going to guarantee a long bulb life. It will accept industry standard, 2-prong plug. It does feature 3-prongs that are on the back side but only uses two functions. That's the only reason why the 2-prong plug is necessary. You can pick up a mounting grommet, sold separately, part number A45GB. The 2-wire pigtail that we'll be using today in our demonstration is available at etrailer.com.

Sold separately with part number A45CB. That's going to help you for a complete flush mount installation. The the mounting bracket is also available, you can find that underneath the related products with part number BK45BB. That's also going to be sold separately. If we go over the dimensions real quick, this is going to give us a diameter of 4 1/4", With a depth of right around 2". We're going to go ahead and hook it up to our external power source.

We're just going to take our 2-prong plug. Fit it into our mounting location here on the back side. You can see here that when we activate the reverse light, it's a nice bright signal. The incandescent bulb really puts out a strong signal, especially through that clear lens. That's going to do it for today's look at part number BU45CB. This is Sealed, 4" Round Trailer Back Up Light from Optronics.

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Customer Reviews

Optronics Backup Light for Trucks or Trailers - Submersible - Incandescent - Round - Clear Lens - BU45CB

Average Customer Rating:  4.9 out of 5 stars   (59 Customer Reviews)

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

by:

These lights are great, they are very clear and bright! They are being used as reverse lights on my RV!! I only needed one but went ahead and purchased two to replace both, and I am glad I did!! Was very easy to replace, female plug just plugs right in with no problems!! I have enclosed a picture of front and back of lights, to show clearness and to show plug area!


Comments
The lights are working great! Lights up complete area when backing up!!
Peggy - 10/24/2018


by:

Hard to find item delivered promptly at a good price. A necessary item for my Gulfstream RV. You need stoplight and backup lights! I ordered and received both!
FYI, good replacement for GloBrite Tail & bkup 9551 & 9547




by:

I don’t like buying things on line normally but I thought to give this site a try, my light installed without any problem and also was delivered on time!
Great site will order again




by:

The backup light fits my 2006 motorhome perfectly and works well. In fact, it is so much brighter than my other backup light that I am thinking of ordering another one. Etrailer's service was first rate. The package came when promised and was packed very well with plenty of cushioning to protect the light.


Comments
Still working great.
Duncan - 01/13/2018


by:

Plugged right in, a direct replacement.




by:

Prompt shipping and no issues with the products I ordered. Product was exactly what I needed and at a very good price. I would do business with etrailer again.


Comments
No issues. Still working fine......
Dennis - 02/10/2018


by:

Purchased a pair of these after one light burnt out on my 2005 coachmen camper. Both easily installed assisted by a bit of silicone sprayed on the exhisting rubber grommets. Good as new !!!




by:

Product came swiftly. Was as described.
These
lights are nice and bright, compared to the old ones.




by:

I ordered back-up lights and they arrived very quickly. Finding "etrailer.com" on line has been very illuminating.




by:

The light assembly is excellent quality. Heavy duty construction and fit the grommet and frame perfectly. The shipping was extremely quick, and the price just right. Would recommend etrailer.com highly.




by:

Clear backup lites ordered for flatbed truck bed were replaced & plugged in, fit perfect, no hassles. * I'd order from this company as needed again.




by:

Everything I needed to update my trailer was here. As I was preparing the trailer to put the new parts on, the mail carrier arrived and put them in my hands. All the parts were a direct replacement.




by:

Shipped in a few hours, on a Sunday! Thank you




by:

great price, fit perfectly,very fast sh ipping.




by:

these lights and mounts give me the old school look I wanted at a reasonable price. They have worked perfectly.




by:

This lite is like the OE,,and I did not have to order from the dealer.
E trailer are the only people I will order from on line.,,thanks




by:

product was as advertised and promptly delivered. The fit was very tight for my Winnebago motor home but it worked fine. The exit for the wiring comes off the bottom instead of the side. That was my fault for not checking. I made it work.




by:

Excellent product-fantastic customer service! Follow-up is like none other. Will by again.




by:

Just what I ordered...Fast service..... always good from etrailer!




by:

I had problems finding these tail lights, found them here at a very very reasonable price, exactly the one's I needed. Fast shipping and came well packed. Would definitely purchase here again! , highly recommended.




by:

Fast shipping, overall very happy




by:

Perfect replacement for original equipment, works great. Thank You




by:

Installed on customers RV. Exactly what we were looking for. Thank you




by:

Perfect fit. Much better than Northern Tool




by:

Nice lights. Easy to install. Very durable and affordable


Comments
just like new
Richard - 02/13/2020

25
59
Show More Reviews

See what our Experts say about this Optronics Trailer Lights



  • Can the Bulb Inside the Optronics Backup Light BU45CB Be Replaced
    Correct, the bulb inside the Optronics Backup Light part # BU45CB is not replaceable because this is a submersible light therefore sealed. I would not really call this bad engineering as it was designed this way for a reason. If you were to replace the bulb you would have to break the seal and then the light would no longer be submersible.
    view full answer...
  • Replacement Reverse Light for Ranger z521 Boat Trailer
    I have a solution that may work for you, but we do not currently have any 3" diameter submersible reverse lights. Have a look at the Optronics Backup Light # BU45CB which is a 4-1/4" diameter light that can be mounted to your trailer using mounting bracket # BK45BB. You will also need the 2 wire pigtail # A45CB to replace the wiring from your old lights and plugs into the back of this Optronics light. I've attached a photo that outlines the dimensions of the light to see if you can match...
    view full answer...
    Image 1 for Image 2 for
  • Can Peterson Round Flush Mount Trailer Light be Installed in 1/8 Inch Thick Diamond Plate
    Yes you can install red flush mount light # 435800 in diamond plate. The grommet will hold the light in place by compression. For a similar backup light you can use # BU45CB with grommet # A45GB and wiring harness # A45CB.
    view full answer...
  • 4 Inch Round White Trailer Backup Lights Needed for a Quick Loader Trailer
    Yes, we have the Sealed, 4 inch Round Trailer Back Up Light, # BU45CB, that has a clear lens and provides a white backup light. Along with the light you might also need a 4 inch round grommet, # A45GB, and a straight pigtail, # A45PB, or a right angle pigtail, # A47PB.
    view full answer...
  • Replacement Backup Light for Peterson 426E on Motorhome
    The Peterson 426E is a grommet mount lamp which is 4 inches in diameter. We don't offer that particular lamp, but it cross referenced to several lamps offered by Optronics. Here's what's available: • # BU45CB is a in incandescent lamp that could be used as a reverse light. Compatible with 12V systems • # BUL06CB is a 6-diode LED lamp. 12V compatible • # BUL11CB is a 10-diode LED. 12V compatible • # M826C-7 is a 7-diode LED. 12V compatible • # BUL53CB is a 36-diode LED. 14V compatible •...
    view full answer...

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Info for this part was:

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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