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Optronics LED RV Dome Light - Surface Mount - 260 Lumens - Round - White Lens
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Optronics LED RV Dome Light - Surface Mount - 260 Lumens - Round - White Lens

Item # ILL45CB
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4-5/8" x 4-5/8" x 3/4". Low-profile dome light illuminates your RV's interior with bright white light. Durable polycarbonate lens and housing. Surface mount - hardware not included. 2-Wire pigtail. 42 Diodes. Lowest Prices for the best rv interior lights from Optronics. Optronics LED RV Dome Light - Surface Mount - 260 Lumens - Round - White Lens part number ILL45CB can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (19)
  • Q & A (0)
  • Videos (1)
  • Photos
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Optronics RV Interior Lights - ILL45CB

  • Dome Light
  • LED Light
  • Surface Mount
  • 12V
  • 4-1/2 Inch Diameter
  • No Switch
  • White
  • Optronics

4-5/8" x 4-5/8" x 3/4". Low-profile dome light illuminates your RV's interior with bright white light. Durable polycarbonate lens and housing. Surface mount - hardware not included. 2-Wire pigtail. 42 Diodes.


  • Low-profile, round dome light provides bright white light for your RV's interior
  • Durable surface-mount technology (SMT) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows for improved heat distribution
  • 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
  • Polycarbonate lens with white LEDs
  • Sonically sealed, waterproof housing and lens
  • Surface mount - hardware not included
  • 2-Wire pigtail - includes power lead and ground wire


  • Quantity: 1 light
  • Light output:
    • Effective lumen output: 260 lumens
    • Raw lumen output: 300 lumens
  • Diodes: 42
  • Overall dimensions: 4-5/8" tall x 4-5/8" wide x 3/4" deep
    • Light face diameter: 4-1/2"
  • Lead wire length: 6"
  • Power draw at 12.8V DC: 0.37 amps
  • Lifetime warranty on LEDs

ILL45CB Oprtronics LED RV Interior Dome 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.

Raw Lumens vs. Effective Lumens

Lumens are used to measure the amount of usable light that is put out by a light source. Raw lumens represent the number of lumens that the manufacturer claims the LEDs are capable of producing. It does not include the light's drive method or the amount of light lost from the lens or reflector. Effective lumens take these factors into account and represent the number of lumens that are actually produced by the complete light assembly, not just the amount of light that the diodes are capable of producing. This light has a 300 raw lumen capacity and produces 260 effective lumens.

ILL45CB Optronics LED RV Interior Dome Light - 300 Raw Lumens - Surface Mount - 4-1/2" Round - Opaque Lens

California residents: click here

Video of Optronics LED RV Dome Light - Surface Mount - 260 Lumens - Round - White Lens

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Optronics RV Lighting - Ceiling Light - ILL45CB Review

Speaker 1: Today we're taking a look at the Optronic's LED RV Dome Light. This low-profile, round dome light provides a bright white light for your RV's interior. It features durable, surface mount technology when it comes to the construction of the LED circuit board. It better withstands shock and vibration, and allows for improved heat distribution.Now, LED's make great replacements for incandescent lights, they last longer, they burn brighter, they're more efficient. You don't have to worry about changing bulbs, and you don't have to worry about brittle filaments. We're looking at a really nice polycarbonate lens, with an aluminum base, it's a surface-mount installation, mounting hardware included, and it features a two-wire pigtail, so your white wire's your ground wire, black wire's your power wire.And then the actual light disconnects or rotates off the base.

So, you can see here how the base rotates, and that's your mounting platform. So, you take the base off, you mount it, and then you place the light on and twist it into place.When it comes to the dimensions of the unit, starting with the overall diameter, that's measuring edge-to-edge going straight across, we're looking at about 4 and 5/8 inches, and then the overall depth, this is how far it sticks out from the installation surface, it's only about three quarters of an inch deep, so it's a nice low-profile unit.We're gonna go ahead and hook it up to power, that way you can see what it looks like with some power running to it, and then we'll also turn off our overhead lights, so you can see it in a lower light setting.(Silence)When it comes to the effective lumen output, we're looking at 2060 lumens with a raw lumen output of 300 lumens. It features a total of 42 LEDs or 42 diodes, the power draw at 12.8 volts, is 0.37 amps, and Optronics puts a lifetime warranty on the LEDs.That's gonna do it for today's look at the Optronics LED RV Dome Light.

Customer Reviews

Optronics LED RV Dome Light - Surface Mount - 260 Lumens - Round - White Lens - ILL45CB

Average Customer Rating:  4.9 out of 5 stars   (19 Customer Reviews)

4-5/8" x 4-5/8" x 3/4". Low-profile dome light illuminates your RV's interior with bright white light. Durable polycarbonate lens and housing. Surface mount - hardware not included. 2-Wire pigtail. 42 Diodes.


Cant beat the light output for the price, its exactly what i wanted. Just dont forget this has no switch built in, its for lighting circuits that are switched on and off externally.

A year later these are still doing great as a replacement dome light in my car. No switch means its just on and off with the door opening but its far superior light output means i can actually see the floor at night when im looking for something
Daniel - 06/21/2022


The Optronics LED dome light replaces a broken light in our Class C motorhome. I found it easy to install, rewire, and is a better light than the one it replaced. The light fills the whole dome where our existing LED emitted from just the center. I am very pleased with my purchase.


Product arrived promptly and appears to work better than the original equipment.


These are better lights in our camper then the original.


Should work great on my 12V system in my off grid camp.


Exactly what I needed for GeoPro trailer
Perfect fit replacement


I used these lights to replace 18 lights in my motorhome. They are super bright white, instead of the factory vanilla lights. Would recommend. Cheapest price on the web.


Purchased 4” led with on off switch in the center of the light and without. They are much brighter than original 3” led’s in RV. Easy to remove old and replace with new.


Very easy to install, sleek looking and gives off a nice diffused white light.




still working will buy again if needed


Good ltem


Great service and reasonable prices







See what our Experts say about this Optronics RV Interior Lights

  • How Many Watts Does the Optronics ILL45CB Draw
    The Optronics LED Dome Light # ILL45CB will be drawing 4.736 watts at 12.8 volts (DC). If you are referring to the actual diode, LED lights are becoming less and less accurate to measure brightness in this fashion. This is why the output is usually only listed in lumens on LED lights. This one has an effective output rating of 260 lumens.
    view full answer...
  • Does Optronics LED RV Dome Light # ILL45CB Have Internal Switch
    The Optronics LED RV Dome Light # ILL45CB does not have a switch built into it. This would normally be used with a switch setup like a wall switch. For similar lights that do have switches you can leave them in on position and use a wall switch to operate them though as well.
    view full answer...
  • What is the Color Temperature of Optronics LED RV Dome Light ILL45CB
    The Optronics LED RV Dome Light # ILL45CB that you referenced puts out a very warm light. I would say it would match the 3500k light temperature very well. You can see the temperature of the light in the attached picture.
    view full answer...
    Image 1 for
  • Replacement Surface Mount LED Light for Command 328-K-1020WSM2
    The Command part number you've referenced refers to the board and switch replacement part of the LED RV Dome Light with Switch - 408 Lumens - Surface Mount - White Bezel - Warm White # 328-K-1020WSM2, and these do have a 1 year warranty. If yours haven't been lasting at least that long there might be another issue that's causing them to stop working before this. However, the Optronics LED RV Dome Light - Surface Mount - 260 Lumens - Round - White Lens # ILL45CB would be the replacement...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Ronnie R
Updated by:
Ronnie R
Employee Matthew E
Updated by:
Matthew E
Employee Jonathan Y
Video by:
Jonathan Y
Employee Brian T
Written by:
Brian T
Employee Robert O
Test Fit:
Robert O

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