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Mini Trailer License Plate Light - Submersible - Incandescent - Rectangle - Clear Lens
Optronics

Mini Trailer License Plate Light - Submersible - Incandescent - Rectangle - Clear Lens

Part Number: LP91CB
In Stock
$8.96
Retail:$9.61
You Save: 7%
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2-1/2" x 1-3/16" Rectangle. Waterproof, incandescent trailer light illuminates your license plate. Bulb can be easily replaced. Multiple mounting options. Accepts industry standard 2-prong plug. (1) 194 Bulb. Great Prices for the best trailer lights from Optronics. Mini Trailer License Plate Light - Submersible - Incandescent - Rectangle - Clear Lens part number LP91CB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (77)
  • Q & A (0)
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Optronics Trailer Lights - LP91CB

Highlights

  • Keeps Working When Submerged: Sonically sealed, waterproof housing blocks water intrusion.
  • Compact Fit for Tight Spots: Measures 2-1/2" x 1-3/16" x 7/8" for small mounting areas.
  • Simple Power Hookup: Accepts industry-standard 2-prong plug for quick connection.
  • Easy Bulb Maintenance: Uses (1) replaceable 194 incandescent bulb for fast swaps.
  • Tough, Clear Protection: Durable polycarbonate lens and housing resist impacts and wear.
  • Road Legal Assurance: DOT compliant for reliable license plate illumination.

Features to know about

Compact Light for Tight Spots: Small but Bright

When you only have a small space to work with, this mini rectangular light gets the job done without getting in the way. Measuring just 2-1/2" wide by 1-3/16" tall and 7/8" long, it’s compact enough to mount neatly while still providing strong illumination for your license plate. It’s the perfect size when you want a clean, low-profile look that stays out of harm’s way.

Keeping Water Out: Fully Submersible and Sealed

If your trailer ends up in the water, this light can handle it. The lens and housing are sonically sealed together to form a single waterproof unit that’s fully submersible. That seal keeps moisture out so the bulb and wiring stay protected, even after repeated dunking or exposure to rain. It’s built to last in wet environments where other lights might fail.

Reliable Illumination: Replaceable 194 Bulb

This light uses a standard 194 incandescent bulb that’s easy to replace when needed. The clear lens lets the light shine bright and clean for good visibility on your license plate. With a power draw of just 0.2 amps at 12.8V, it runs efficiently on your existing 12V DC system without overloading your circuit.

Flexible Mounting Options: Fits How You Need It

The design gives you options for how you want to mount it. You can surface-mount it using a bracket (A91BB, sold separately) or flush-mount it with a grommet (A91GB, sold separately). It also accepts the industry-standard 2-prong plug (A46PB or A86PB, sold separately), making wiring straightforward with no special connectors required.

Built Tough for Everyday Use: Durable Polycarbonate Construction

The housing and lens are made from durable polycarbonate that resists impact and wear from road debris or vibration. It’s DOT compliant and backed by a 3-year warranty, giving you confidence that this small light will keep shining reliably trip after trip.

Specs

Dimensions

  • Overall dimensions: 2-1/2" wide x 1-3/16" tall x 7/8" long

Optronics LP91CB submersible rectangular trailer license plate light shown with dimensions highlighting its compact 2-1/2 inch by 1-3/16 inch size.

Electrical Specifications

  • Bulb type: 194
  • Power draw at 12.8V: 0.2 amps

Warranty

  • Warranty period: 3-Year warranty

LP91CB Optronics Mini Trailer License Plate Light - Submersible - Incandescent - Rectangle - Clear Lens

Alternate part number: LP-91CB





Ratings & Reviews

4.9

77 reviews
Review sort icon
2-1/2" x 1-3/16" Rectangle. Waterproof, incandescent trailer light illuminates your license plate. Bulb can be easily replaced. Multiple mounting options. Accepts industry standard 2-prong plug. (1) 194 Bulb.

by:

Jean was very helpful, my only problem is I don't know if the clear lights will work. It would be my fault, not your company. I have dealt with your company before & have always been satisfied.



by:

Replaced old light and the LED's are far superior to my old lights.



by:

Trailer shorted truck fuse,, after I replaced this light,, it stopped blowing fuses.easy fix.



by:

This is an exact replacement for the dome light on a 1975 Bricklin SV1. Part arrived quickly, Fit right in.

Thank You



by:

Etrailer was the only place I found an exact replacement.



by:

was hard to find and was just what I needed at etrailer.com only I think



by:

Excellent light. I could only find this at etrailer.com as no stores seem to carry this part. Arrived extremely fast and was easy to install.



by:

Order was exactly what I expected and shipping was better than expected. All reasons why I continue to purchase from etrailer.
Thank you,
Dave



by:

Licence plate light was a perfect fit. Product pictures and information made is very easy to select the right product.



by:

Seems nice, does not come with pigtail. I had to buy a clearance light with pigtail, just to get the pigtail.



by:

Works great in the OEM license light grommet----also these can be difficult to find so thanks etrailer....



by:

Great product overview after asking online, ordered, quick order acknowledgement and shipping info; received in 2 days and fits exactly like it was supposed to. Will order again from this firm, if necessary, in the future.



by:

I want to thank you for fast prompt service.
This
was the exact part for my 1991 ranger boat trailer.
It took 5 min. to install and check out, no cutting wires or modifying any parts to fit.

If need anything else, you will be my first stop!!



by:

I changed out my original Wesbar incandescent trailer running lights to LED. The thin line series snapped right into the original base. Looks great and they are water proof.



by:

An exact replacement for the License plate light on my Triton jet ski trailer. Been dipping it in salt water all summer, and it's still going strong.



by:

Perfect replacement for the damaged original lamp on my 2005 Ram-Lin boat trailer used for my Ski Nautique boat.

Dave D. profile picture

Dave D.

3/28/2018

Still working fine!



by:

This light is for a license plate light on my boat trailer. I attempted
to find a replacement locally without success. Went to etrailer.com and found this to be an exact replacement which easily fit the origional grommet and plug. The price plus shipping was less than any after market light I could find. Thanks again etrailer.



by:

The lights I ordered for my boat trailer were exactly as advertised and worked perfect. I spent much time searching for these lights as my local stores did not carry them. So much easier to order from etrailer.com



by:

Thanks etrailer for having this prododuct available and in stock. These white lights are almost impossible to find at local boat shops and being able to get a hold of them was a blessing. I plan on using this light as a license plate light. The light plugged right into my existing license plate light plug and mounting frame like it was custom built for it. Now if you offered this light in LED...........



by:

Excellent !!! Work fine and it fit well. Easy to install.
Happy customer.



by:

Product is the exact replacement. Have a Triton PWC trailer and the bulb was not a Triton product. I checked both bulbs purchased and both worked. Not sure how long it has been burned out. Trailer is 8 years old. This light is not available in stores. Bass pro did not carry it!
I also have a pontoon trailer of which I ordered a hitch lock from you.If I need any more lights, I'll look you up.Will send a pic on email reply.
Great ordering (rep was great) / shipping and price.
Thank You!



by:

Delivery and package was great. Received shipment on time and the replacement lights for my boat trailer were exactly what I ordered and fit well. Plugged the trailer in and all the lights worked. I can't ask for anything better than that.

Mike profile picture

Mike

10/20/2015

Lights continue to work well.



by:

Great service excellent parts



by:

It looks really nice now with the Sealed, Mini Rectangular Trailer License Plate.



by:

Perfect. Clip-in-place. Good for shipping containers.


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See what our Experts say about this Optronics Trailer Lights

  • Replacement Tail Lights and License Plate Light for a Triton PWC LTWC1 Trailer
    We sure do Brad! To replace a rear tail light on your Triton PWC LTWC1 trailer, I recommend the Peterson LumenX LED Trailer Tail Light item # PET32NV. This is the LED upgraded version of the item # M421R that came stock on your trailer. The Peterson LumenX LED Trailer Tail Light item # PET32NV has identical dimensions. However, it is going to be much brighter and last longer. For the slight increase in cost compared to an incandescent replacement, I strongly suggest this upgrade. It does...
    view full answer...
  • Waterproof License Plate Light for Eagle Spirit Boat Trailer
    Thank you for providing the reference numbers from the license plate light on your Eagle Spirit boat trailer. In my research I was not able to find any cross-reference to these parts, nor was I able to verify the brand of lights originally installed by the trailer manufacturer. However, of all the submersible license plate lights we offer, the unit you referenced, Optronics Trailer Light # LP91CB, is the only one that is this 2-1/2 L x 1-3/16 W x 7/8-inch D size. It uses a 2-prong pigtail...
    view full answer...
  • Replacement Trailer License Plate Light For Incandescent Light Sealed Inside Lens
    Thank you for the images. It appears you have a Mini Trailer License Plate Light # LP91CB which is 2-1/2" long by 1-3/6" tall. You will have to replace the light as an assembly since the unit is sonically sealed to prevent water from getting in. You will be able to use the LED Trailer License Plate Light # LPL91CPG as a replacement if your light does match the dimensions above. The LED will last longer and draw less power from your vehicle.
    view full answer...
    Image 1 for Image 2 for
  • Availability of a Downward Projecting Submersible License Plate Lamp for a Boat Trailer
    The license plate lamp you referenced, part # UL94CB would project the light outward. If you were looking for a lamp that would mount above the plate that would shine downward, I would recommend the Optronics Sealed Rectangular Mini License Plate Light, part # LP91CB. If used along with the Trailer License Plate Bracket, part # LP25SB and the Two Wire Pigtail, part # A46PB, you will have a submersible license plate lamp that projects downward.
    view full answer...
  • Recommendation for License Plate Lamp to Shine Upward
    My best suggestion would be to use a bracket like the Steel Trailer License Plate Mount Bracket, # LP20SB, with the Peterson Sealed Trailer License Plate Light, # M439K, and mount the bracket upside down. This would give you a lamp below the license plate that would shine upwards. Before making a purchase, I do recommend contacting the Department of Transportation just to make sure that mounting a light that shines upward would not violate any of their regulations. Please also keep...
    view full answer...
  • Can Optronics LED Mini License Plate Light # LPL31CB Mount Upside Down Without Water Leakage
    The light you referenced, Optronics LED Mini License Plate Light # LPL31CB, is intended to mount so that its chrome-finish cover is on top. Although it does have a weathertight seal against the elements, this is intended to provide protection from water damage in the usual mounting position. I recommend one of the lights shown on the linked page since these products are all submersible. None of these happens to be an LED-type however. Optronics # LP91CB can be used along with their bracket...
    view full answer...
  • LED Replacement Light Recommendation for LED Trailer Light LP91CB
    For an exact replacement for the # LP91CB that is LED you would want the part # LPL91CB.
    view full answer...
  • LED Replacement Light Recommendation for LED Trailer Light LP91CB
    For an exact replacement for the # LP91CB that is LED you would want the part # LPL91CB.
    view full answer...


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H
Employee Brian T
Updated by:
Brian T
Employee Carrie F
Updated by:
Carrie F

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