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Optronics 12V LED RV Dome Light - Double - 10-5/16" Long x 4-3/16" Wide - White Housing

Optronics 12V LED RV Dome Light - Double - 10-5/16" Long x 4-3/16" Wide - White Housing

Item # RVILL34
Our Price: $19.24
You Save: 29%
RV Interior Lights
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Shipping Weight: 0.39 lbs
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Use integrated switch or wire to a light switch to turn this double dome light on and off. Perfect for brightening up your RV kitchen when doing dishes or your enclosed trailer when loading gear. LEDs last longer and burn brighter than incandescents. Great Prices for the best rv interior lights from Optronics. Optronics 12V LED RV Dome Light - Double - 10-5/16" Long x 4-3/16" Wide - White Housing part number RVILL34 can be ordered online at or call 1-800-940-8924 for expert service.
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Optronics RV Interior Lights - RVILL34

  • Dome Light
  • LED Light
  • Surface Mount
  • With Switch
  • 12V
  • 10-5/16L x 4-3/16W Inch
  • White
  • Optronics

Use integrated switch or wire to a light switch to turn this double dome light on and off. Perfect for brightening up your RV kitchen when doing dishes or your enclosed trailer when loading gear. LEDs last longer and burn brighter than incandescents.


  • Double dome light gives you bright light in your RV living space or enclosed trailer interior
    • Perfect for underneath kitchen cabinets, in walkways, above shower stalls, and more
  • Included energy-efficient, warm white LEDs last longer and burn brighter than incandescent bulbs
  • Integrated toggle switch lets you turn the lights on and off
    • Can also be wired to an interior light switch
  • Frosted plastic lenses won't shatter if accidentally dropped like glass lenses would
    • Textured pattern helps disperse bright light throughout your RV
  • Durable, white polycarbonate plastic construction
  • Easy, bolt-on installation onto the surface of your ceiling or wall - hardware not included
    • 2-Wire design - white for ground and black for power


  • Overall dimensions: 10-5/16" long x 4-3/16" wide x 1-13/16" deep
  • Mounting hole diameter: 3/16"
  • Voltage: 12V DC
  • Power draw at 12.8V: 0.6 amps
  • Light output:
    • Raw lumens: 920 lumens
    • Effective lumens: 815 lumens
  • Color temperature: 3,150 Kelvin
  • Number of LEDs: 18
  • Lifetime warranty on LEDs

Optronics Dome Light Dimensional Diagram

Need extra light over your camper kitchen sink for when you do the dishes? Or perhaps you need to upgrade the dim, old lights in your enclosed car hauler? This dome light has warm white LEDs that give you brighter light underneath a kitchen cabinet, in a walkway, above a shower stall, or inside a small hunting cabin.

Optronics Dome LEDs

LEDs are more energy efficient, last longer, and burn brighter than lights with incandescent bulbs. You won't have to worry about replacing bulbs that have brittle filaments. And because LEDs draw minimal power, the light won't drain your battery, overload your circuits, or produce too much heat.

Raw Lumens vs. Effective Lumens

Lumens are utilized to measure the actual amount of light that you can see and use from a light source. If you need a super bright light for a workspace, you will want to go with a light that has a higher lumen count. If you want a softer glow in an RV living space, you should go with a light that has a lower lumen count.

Light sources typically have 2 different kinds of lumens: raw and effective. Raw lumens represent the natural amount of light that a manufacturer says their light fixtures can produce. Effective lumens, on the other hand, represent the usable brightness of the entire light assembly, including the drive method or any lenses or reflectors.

Surface-Mount, Bolt-On Installation is Easy

Optronics Dome Light Installed

This surface-mount dome light is incredibly easy to install as an upgrade or direct replacement of your existing light. To access the bolt holes, pull the lenses up and away from the housing. Do not use any tools to remove the lenses, as they will crack. Then, using hardware (not included), bolt the housing onto the ceiling, wall, or cabinet before re-installing the lenses. The light has a 2-wire design that hooks up to ground (white wire) and power (black wire). Once you're finished, you can then turn the lights on and off using the integrated toggle switch in the center of the light. And if you want to be able to control the brightness of the light, you can connect it to an LED-compatible dimmer switch (not included).

RVILL34 Optronics 12 Volt LED RV Pancake Light - Surface Mount - 18 LEDs - White Housing

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Customer Satisfaction Score:

Customer Reviews

Optronics 12V LED RV Dome Light - Double - 10-5/16" Long x 4-3/16" Wide - White Housing - RVILL34

Average Customer Rating:  4.8 out of 5 stars   (1216 Customer Reviews)

Use integrated switch or wire to a light switch to turn this double dome light on and off. Perfect for brightening up your RV kitchen when doing dishes or your enclosed trailer when loading gear. LEDs last longer and burn brighter than incandescents.


Very nice product for a very low price. I think these are the best buy in trailer lights. They're good enough that I cancelled my plans to install a couple of 4ft strip lights.

Brightness - very good, a pair fully and easily light up the interior of my 8.5x20 enclosed trailer. It helps that I have gloss white walls and ceiling. For a trailer with a plywood interior, I would probably go with 3 of these on the ceiling. If you need detailed task lighting, you might consider using 4 of these (two at the ends of the trailer and two spaced out between front and back). That would give an enormous amount of light thruout the interior.

Installation: very easy. The covers come off easily if you use a blunt tool and push on the cover "slots" to ease the lens off. I used the blunt handle of a trim removal tool, but a piece of wood dowl would work fine as well, Even a screwdriver might be fine if you were really careful with it. The lenses are on tight but apply firm pressure an the lens will slide loose.

The lights have 8 mounting holes but you really only need to use 4. This makes it easy because you just pick the holes that are most convenient to use (I put a pair into the aluminum header rail in my trailer ceiling).

Don't forget that white is ground and black is power. I grounded the lights by crimping a small ring terminal on the white lead and putting it over one of the mounting screws.

I compared these with the lights in many other trailers and no question these are the best value in trailer interior lighting. There are better lights but at more than 5x the price. Quite a few friends who saw these in my trailer have bought these to replace their existing lights.
Ben - 09/19/2018


Package arrived earlier than expected. Well packaged, Excellent light. Easy install and really bright compared to RV original 12 volt 2-bulb light.
Will order additional lights in future.
Item came as expected. Better than [online] recent service- not arriving as expected, delayed in shipping, etc. etc.

Rick - 11/15/2022


Easy replacement for incandescent OEM trailer lights. A LOT brighter than non-LEDs and have not had an issue with any of the 7 lights I installed.


I installed these at my cabin and they are so nice. It is a rustic hunting cabin that has never had electricity so we added 12v lighting and included these for by the couch. They are great for reading and just a nice cozy environment for visiting. We have brighter lights for more light when needed. I am super happy with these


I changed out 7 double and 5 single lights to these LED lights in our 2009 Wildwood Bunkhouse. They are excellent lights and nicely brighter than the originals (many of which were beginning to melt the lenses).

I noted in the reviews of the trouble getting the lenses off for mounting. I had all 19 lenses off in less than 5 minutes. Very simple. Just used a small wooden dowel (diameter of a pencil) with the end shapped square and placed in the small notch in the lense and gave a firm tap with a small hammer. Tap one side then the other and they are off. I rigged up a stop for the light on the camper table but could have used a shallow drawer or some such.

Lights have worked out great. The battery power supply fan never turns of now, but did originally when about 4 old lights were on. I am thinking of replacing the last two, that I thought last year would not be used much.
Kevin - 08/25/2019


The clear plastic lenses were improperly installed. Both sides the slots not pushed forward on one side. I was eventually able to remove the lenses without breaking them. It should be ok now.


I was really happy with the light, it lit up the dressing area in our RV a lot more then the original light did.


I have not installed these yet. This review is about shipping only. I bought 6 of these and they were NOT individually wrapped. They were just thrown in a box so they can bang against each other during shipping.

Thank you for letting us know! I will share this feedback with our shipping department.
-- Etrailer Expert Jenny N - 12/05/2022


As described.
Happy with the amount of
light emitted


Product is as described and the installation was easy....I really appreciated the 'how to' vidoe on the etrailer website. Shipping was fast. Will definitely be purchases from again!!!


Very happy with the brightness of the lights. The lens are hard to remove but was able to without breaking them. My only complaint is there was no packing in the box to keep the lights secure and from rattling around.


I am well pleased with LED light upgrade. They are bright and are very easy to install. they are great buy.


The light provides nice light for the dinette and galley area. Just be careful while removing the lenses. They fit quite tightly and forcing them off might break them. I was able to remove and replace them without any damage.


I installed these lights every 4 feet in my new enclosed car hauler and boy to they light things up! With no windows in the trailer and the door closed it's completely dark in there and the one tiny light supplied with the trailer was not going to do it.

Lights work great. I installed a master switch right by the door and when I enter I can light up the entire trailer. A million times better than the single light that came with the trailer.
DrPcFix - 06/11/2020


Our light arrived in excellent condition. Our experience with ETRAILER has always resulted in great service, the orders are always shipped expeditiously and we’ve never had any problems. That’s why we’re repeat customers.


This LED light corrected the problem that I had with OEM lights in my 2014 travel trailer where RFI from the lights were causing interference on broadcast television. Of course I have other lights that need replacement, but this is a solution. Attached photo is for the single head light which also had the same problem.

problem solved
David W - 11/10/2019
Still pleased with this light.
David - 12/29/2019


These lights I use alot in my rv repair services. Given average score where lose packed caused scratches in lens that I ended buffing out to make look good . Next time wrap them to avoid extra time . But they are great lights fir the price


Wow! These lights are a 1000% improvement! My trailer had 2 old school lights that didn't produce any light at all (had to use a flashlight). These are Exactly what I was looking for. In fact I liked them so much I ordered 2 more for my oldest sons trailer too. And super fast shipping!!!

Still working great!
Bobby M - 04/01/2017


Perfect replacement for our dim RV ligh ts.


Put out a great deal of light and are relatively efficient. Only knock is that the lenses are REALLY difficult to remove and because of that, I have for the time being, left them off.


This replacement LED light fixture was simple to install, and the lighting is brighter than the original.
I will be replacing all my lights in the camper with LED lights.


Installed quite easily and gives off good light.


Really nice lights, easy installation


these are not too bad but are the week ones in a semi trailer with house hold goods.


Works just fine and as advertised. Good light output with low power requirement (thanks to LED). Would buy it again.

Show More Reviews

See what our Experts say about this Optronics RV Interior Lights

  • Why Does Lumens Rating of Interior Light RVILL34 Seem High
    Lumens are a funny rating actually. Since Lumens is more about the visibility of the light at a distance they really aren't a great way to describe the amount of light provided for illumination. The # RVILL34 does have a very high Lumen rating at 930 but that is linked to the fact that the lights are LED and the light panels in the light are pretty large. This is a very bright light though, check out the review video I attached.
    view full answer...
  • Tips for Removing Lenses on Optronics LED RV Interior Light # RVILL34
    On Optronics LED RV Interior Light # RVILL34 grab the lens and squeeze in while at the same time pulling it away from the center and a little upward. Once the lenses are removed you will have access to the LED boards and the mounting screws holding the light assembly to the surface its mounted to. I do not recommend using any tools to remove the lenses for a couple of reasons. First, if using a tool it focuses the force applied to a smaller area than your hand. And second with a tool...
    view full answer...
  • How to Wire 2-Wire LED Lights to Enclosed Trailer
    No problem. If your existing trailer interior lights use a 1-wire hookup this means they use their mounting hardware to make the ground connection and the single lead is the +12V feed. Adding more high-efficiency LED lights with 2 wires will only require you to run that separate (white) ground wire to a suitable metal surface on the trailer (such as the surface the existing light are mounted to). The linked page will display all LED type interior white lights suitable for use in your enclosed...
    view full answer...
  • Troubleshooting Interior Light # RVILL34 that Works When Tested But Not on Trailer
    If you tested the # RVILL34 on a 12 volt source confirming that they do work, and your old incandescent bulb lights assemblies still work the only thing I can think of is that maybe you wired the # RVILL34 backwards. Clearly you have 12 volts present at the wiring, and if an incandescent bulb can be illuminated there then there is no reason the # RVILL34 shouldn't work unless there was an error in the wiring. Make sure the white wire of the light goes to the ground and the black to the...
    view full answer...
  • Does Optronics LED RV Interior Light # RVILL34 Use 12 Volts or 110
    The Optronics LED RV Interior Light # RVILL34 is designed to work on a 12 volt power system.
    view full answer...
  • Lumen Output and Wattage for Optronics LED RV Interior Light
    As far as lumen output the Optronics LED RV Interior Light # RVILL34 has 2 ratings. The raw output, unobstructed and in testing conditions the light can produce 920 lumen. The effective lumen output in real-world scenarios is 815 lumen. But the watts are low; 1.22 at 815 lumen. The one thing that isn't tested for this light is the temperature. As an LED light though it would be less on the reddish side and more on the white/blue-ish side.
    view full answer...
  • Do Horse Trailer Interior Lights Require a Fuse be Installed on the Circuit
    For an interior light on a horse trailer most would not install a fuse on the trailer side. The circuits are already protected by fuses on the vehicle side so it would be a bit redundant. If you have the 12 volt power ran to the trailer and ready to be wired to a light you are on the right track and would just need to install and wire a new set of lights. The most popular option we have that would work well is the part # RVILL34. This uses LEDs for illumination so it doesn't draw hardly...
    view full answer...
  • Hardware Recommended to Install Optronics LED RV Interior Light RVILL34
    If you replace existing trailer lights that use a single 921 bulb with the Optronics LED RV Interior Light # RVILL34 you will substantially increase the total light in the trailer and at the same time reduce your power consumption since LEDs are roughly 10-times more efficient than incandescent bulb lights. Your hardware choice depends on the surface material. If the trailer interior material is plywood, use wood screws. The mounting holes in the base measure 0.2-inches diameter. I checked...
    view full answer...
  • What are the Wire Functions on Optronics LED RV Interior Light with Switch
    Allow me to be the first to tell you that there is no industry standard for trailer wire color and function which is frustrating to say the least since I have to deal with it on a daily basis. But the white wire is ground and the black is power on Optronics light # RVILL34. On a lot of lights they usually label the functions where the wires meet the housing but not on this light.
    view full answer...
  • Could the Interior Light RVILL34 Install on Trailer Ceiling that Has Lights that have One Wire
    If your current dome lights only have one wire wired up that would indicate that it's grounding through the sheet metal roof of the trailer. All lights need a power and a ground and most likely the wire was taped to the roof (not ideal at all) or the lights were grounding through the mounting hardware and the second wires were for another function or a brighter illumination. The part # RVILL34 has a power and a ground wire. As long as you can provide both those circuit this light is going...
    view full answer...
  • Can the Optronics LED RV Interior Double Dome Light RVILL34 Be Hooked Up To a Dimmer Switch
    I spoke to my contact at Optronics and they informed me that the Optronics LED RV Interior Double Dome Light with Switch part # RVILL34 will work on a dimmer switch as there is no low voltage cutout. Unfortunately, we do not carry any 12 volt dimmer switches so you will need to source this elsewhere.
    view full answer...
  • Is the Optronics LED RV Interior Double Dome Light RVILL34 Dimmable
    Yes, the Optronics LED RV Interior Double Dome Light with Switch part # RVILL34 will work with a remote dimmer switch as it does not have a low voltage cutoff. We do not carry any 12 volt dimmer switches so you will need to source this elsewhere. I spoke to my contact at Optronics to confirm this for you.
    view full answer...
  • Interior RV Dome LED Lights for 12V Operation
    If you own an Optronics LED light you may be able to obtain a warranty replacement if you contact them. There are no user-serviceable internal replacement parts such as a circuit board for the Optronics LED RV Interior Double Dome Light # RVILL34. Some LED lights like those from Optronics have a limited lifetime warranty on the LEDS themselves while other brands have nominal 1-year warranties. All of our 12V LED dome lights appear on the linked page.
    view full answer...
  • Will There Be Radio Frequency Interference with Optronics Trailer Interior Lighting RVILL34
    We have yet to have any issues with our LED trailer lights interfering with radio frequencies. The # RVILL34 will would not be an issue at all in that regard. None of our customers who have bought this have reported interference issues.
    view full answer...
  • Does Optronics LED RV Interior Light with Switch RVILL34 Run on AC or DC Power
    I'd imagine that your interior lights are currently powered by either AC or DC power and when the camper switches from 120 AC to 12 DC there is actually a converter in play that keeps the power source the same voltage for your lights as this is a common setup. If the lights you have currently are 12 volt then the Optronics LED RV Interior Light with Switch # RVILL34 would work well as a replacement. Nearly all campers use 12 volt lighting like this.
    view full answer...
  • Is LED Panel of Optronics LED RV Interior Light with Switch # RVILL34 Included
    Yes, the LED panels are included with the Optronics LED RV Interior Light with Switch # RVILL34. They are also already installed so all you need to do is wire up the assembly and you'll be ready to use it.
    view full answer...
  • Mounting Hole Pattern for Optronics LED RV Interior Light with Switch - Surface Mount RVILL34
    Optronics LED RV Interior Light with Switch - 18 Diode - Surface Mount - White Housing Item # RVILL34 could potentially cover the existing screw holes for the factory light. This particular light is 10-5/16" long x 4-3/16" tall x 1-13/16" deep. As for its mounting holes there are several and I have included a picture showing them and the spacing for you. With this information you can determine if the light will use the same mounting holes or if new ones will be needed.
    view full answer...
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  • What is the Light Hue of the Optronics RV Ceiling Light
    The Optronics LED RV Light, # RVILL34, will have a light hue that is more of a white-blue light over yellow light. The Optronics light use 18 diodes with a 0.6 amp draw at 12.8 volts.
    view full answer...
  • RV Under Counter Light with Switch Recommendation
    The part # RVILL34 is a 12 volt light that has a switch that could be mounted under a counter/over a sink. It uses LEDs too so it doesn't draw much amperage either.
    view full answer...
  • Are the LED Lights Replaceable in Optronics LED RV Interior Light with Switch # RVILL34
    Optronics LED RV Interior Light with Switch # RVILL34 uses a circuit board types of LED lights which are not replaceable so you would need a second light. At that point it would be easier to just replace the light with the new one rather than try to transplant the LEDs from one to the other.
    view full answer...
  • Recommended LED Lighting for Interior of 2006 Ex-Ambulance Cube Van for Dog Grooming Business
    To ensure you have enough light, I recommend the Optronics LED RV Interior Light with Switch - 18 Diode - Surface Mount - White Housing # RVILL34. This light has a 920 Lumen rating with 815 effective lumen output. This is brighter than most LED lights and similar to a 60W incandescent light bulb. Just a couple of these would give you more than adequate light with less shadows.
    view full answer...
    Image 1 for
  • LED Interior Trailer Light Recommendation for Enclosed Trailer
    LED interior lights can be pretty easily installed on your trailer that will be powered by the trailer connector's 12 volt power circuit. The part # RVILL34 is a pretty common LED setup that would work well. It has a switch built in and two LED panels to produce light for the trailer. As long as your trailer is you might go with at least two depending on how bright you need it to be. The 12 volt power circuit of your 7-way is the 1:00 position of the 7-way.
    view full answer...
  • Will the Optronics LED RV Interior Double Dome Light Work With Both 110 VAC and 12 VDC
    The Optronics LED RV Interior Double Dome Light with Switch part # RVILL34 operates on a 12 volt system so it would need to be attached to a battery in one way or another. It would not work with a 110 volt system nor would any of our trailer lights. Generally speaking, most if not all trailer lights use 12 VDC power.
    view full answer...
  • Will Optronics LED Double Dome Light Cause Interference With TV
    The Optronics LED RV Interior Double Dome Light with Switch # RVILL34 has not been known to cause any interference whatsoever with TV, and I can imagine that what you are experiencing is extremely frustrating, though this light will not cause any of those problems. This is a surface mount light that will be a great fixture for you to solve the interference issues you are having as there are no known issues at all with these lights. I have added a link to a video review of the Double...
    view full answer...

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