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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: $20.34
RV Interior Lights
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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
  • Switch
  • 10-5/16L x 4-3/16W Inch
  • 12V
  • Warm White
  • 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 is perfect underneath a kitchen cabinet or in a walkway in your RV
  • 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 are less likely to shatter than glass lenses
    • 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

California residents: click here

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   (1340 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.


Once again, your shipping department failed to put any packing material in my order to keep the lights from banging around against each other.
When is your shipping department going to learn how to properly pack these lights?
check the reviews on this item and see how many times I've had this same issue!

Etrailer Expert

Katrina D.


I am sorry that this arrived in this condition. We are currently sending this information over to our shipping department for them to do better in the future. Our customer service department will be getting in touch with you soon.


Great replacement or our Passport trailer. I like the color temperature of the lights that are not a harsh white light. Same hole mount which made easy installation.


Bought these lights to replace all the light fixtures in my 30 foot coachman trailer. The bulb fixtures were very hot and burning out the switches. These were an exact replacement. Easy to install, more light output, run very cool,price is great and fast shipping.Have had installed for 1 year and no problems. Very happy with these lights.bought 8 double and 2 single


Fantastic light and amount of illumination compared to our previous two bulb old school light. If I could install other lights like this in our horse trailer's living quarters, I would.


I ordered a ceiling light for my Aliner Expedition and expected new, and, indicated by the scrapes on the cover, I clearly got a used light. Not a good look.


Great product. Good lighting, easy install. Dealing with is actually a pleasant experience. Personable and communicative.


Easy direct replacement, nice light quality and distribution, bright without prismatic colors. Lens covers were difficult to remove (necessary to access the screws to install). Otherwise, so far so good.



The lights seem to work well. Brightness and light output is good. My complaint is the lenses - which are not smooth, but have rounded ridges for strength? - act as a prism and project a variety of colors on the walls. This is distracting, at the least, and irritating. I ended up pulling the covers off, leaving the LED panels exposed so that we have plain, unfiltered light in the camper. I would like to have lenses that just let unrefracted light through.


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.


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

Alonzo J.


They have been working great. Very good product


easy installation


This puts all my old lights to shame. Brighter and more energy efficient. (savings)
Now I'm considering replacing others that don't need to be replaced because I'll need less of them on to light my camper interior.
Easy order, quick delivery. If i need anything else for my trailer and etrailer had it, I'm ordering it from here.


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.

David W.


problem solved



Still pleased with this light.


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.


Installed this in a large truck for added interior light! Worked perfect.


easy installation


Great replacement light. Bright and plenty of wire for an easy install. These were not as long as my old lights so I did have 2 screws holes that showed after I installed these but that didn't bother me.


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.


right out of the box I replaced everything and it will only work on high. something is defective. customer service was great but won't work on low or medium.


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!!!

Bobby M.


Still working great!


work nice, have gone though most of my older camper and cargo trailer with this model and single side version, I like the warmer white ones not as much of a blueish light, much brighter than traditional dome light bulbs.

sometimes the flicker a little when running off vehicle, but probably slight voltage fluctuation, also I've found they don't work with some switching mode power supplies but will work fine off batteries/clean DC


Great product and etrailer quick tracking and delivery. Installed and now we can see with low consumption led lighting.


Perfect for my application. Superior b rightness.


the overhead lights were as advertised
RV much brighter on the inside with the new lights installed



For they past year the optics overhead lighting has worked great


Nice lights, well made and easy to install and get hooked up. I thought they would be a brighter white than what they are but they still produce plenty of usable light to be able to see well.


It’s a light. It’s brighter than the original n lasted about 5 years before one side went out. So I bought another one. I thought it’s great for the money

Show More Reviews

See what our Experts say about this Optronics RV Interior Lights

  • How to Install Lights In a Enclosed Trailer And Upgrade the Breakaway Battery To Power The Lights
    Not only can it be done it is actually much easier than you might think John. First for the battery you want to select a deep cycle battery like the # BRW34FR. This will need to be stored in a Box # DW03009 to protect it from the elements. You can simply connect it using the wiring you already have to your breakaway battery as this receives a charge from your tow vehicle when connected and will recharge the battery then. For the lights you can select either Switched Lights # RVILL34 or...
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  • Will Optronics Utility Light UCL60CB Work For Under-Cabinet Lighting
    The Optronics Utility Light, part # UCL60CB, will provide plenty of light for under your cabinet. The light has 6 LEDs that will last up to 100,000 hours. This is a flush mount and is only 3/8 inches tall. If your light is not switched you may want to check out part # RVILL34. This light has 18 LED diodes and has a toggle switch to turn it on or off. This lights is a bit bigger and it is 1-12/16 inches tall.
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  • Comparing Two LED RV Lights With 18 Diodes Each
    The Optronics LED RV Interior Light with Switch - 18 Diode - Surface Mount - White Housing # RVILL34 and the Patrick Distribution 18-LED Surface Mount Dome Style Light Fixture - 12V # 277-000114. There is not a lumen rating on the slimmer light from Patrick Distribution, but both have received reviews from customers for the functionality and bright light that both put out. I believe you will be very happy with the slimmer light you prefer. I've attached videos to help.
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  • Replacement Optronics Interior Lights for Travel Trailer
    Optronics Replacement Lens # AIL21B-NEW fits the # RVIL21 and # RVIL22 lights made after 2010. It will not fit a light made in 2008. We no longer have that lens. But we do still offer the complete light # RVIL22. If you wish you can convert the # RVIL22 light from standard incandescent bulb operation to high-efficiency LED operation simply by swapping the bulbs for an equivalent LED part. These will be brighter, use only 1/10th as much power and not require periodic replacement like standard...
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  • Comparing Lumen Output of Two 18 Diode LED Lights
    The Gustafson RV Pancake Light - Double Dome - Clear Optic Lens - 18 LEDs # 277-000340 has a lumen output of 225. The Optronics LED RV Interior Light with Switch - 18 Diode - Surface Mount - White Housing # RVILL34 has a lumen output of 920 raw but 815 effective. The Optronics option in this case is a much brighter light and approximately equivalent to a 60 watt incandescent bulb. Unfortunately there is not a clear lens confirmed to fit this unit.
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  • Lumen Rating For The Patrick Industries 6-LED Surface Mount Dome Style Light
    I spoke with the manufacturer, Patrick Industries, and they unfortunately do not have a Lumen rating available for the 6-LED Surface Mount Dome Style Light # 277-000114, but we do have a similar option with the Optronics LED RV Interior Double Dome Light with Switch # RVILL34, which has a rating of 815 Lumens.
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  • LED Light to Replace Stock RV Bathroom Light Fixture
    Opti-Brite LED Dome Light # ILL06COB will put out 643 raw lumens and 354 effective lumens, which equates to about a 40 watt incandescent light bulb. Depending on what you currently have, it most likely is more effective as it is one of the higher lumen ratings for an LED dome light. If you want to ensure a brighter space, you may consider the Optronics LED RV Interior Light with Switch # RVILL34 which will put out 920 lumens or 815 effective lumens. This is the equivalent of a 60 watt...
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  • Is 815 Lumen Rating of Interior Dome Light # RVILL34 Brightness
    Yes the 815 Lumen rating of the Optronics RV dome light part # RVILL34 is the brightness. This is a brighter rating too. I attached a review video for more info as well.
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  • 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...
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  • Does the Optronics LED RV Interior Double Dome Light with Switch Require a Fuse
    I cannot speak for all trailer lights but if you are referring to the Optronics LED RV Interior Double Dome Light with Switch part # RVILL34 then you would indeed want to use an in-line fuse if wiring the lights directly to the battery. This would then protect the light in case of a short. The Spectro 16-Gauge Mini Fuse Holder part # SWC9544 could be used to provide circuit protection for this light as well as most other trailer lights. The 16 Guage Primary Wire part # 16-1-1 could then...
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  • Solution for Needing Sunlink Light # pcdso1n-008
    If you need that exact part number we do not carry it but we do have the pretty similar Optronics LED RV Interior Double Dome Light with Switch # RVILL34. This is a 10-5/16" long x 4-3/16" tall oval and has 18 diodes with a switch so you can turn it on and off. I have added a link to a video review of this light for you to check out as well as a link to our entire selection of 12 volt overhead lights.
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  • Replacement Light Bulb for Interior Dome Light in RV
    I cannot be for certain but it looks like you have a standard 194 type bulb in which case yes, it would just pull straight out but may take a bit of wiggling if there is any corrosion holding it in place. In order to then replace the bulb we have part # A194B for incandescent or part # ARC68FR for LED if it is in fact a 194. If it is not then please let me know what bulb type it is. You can also replace the entire fixture rather easily with the Optronics LED RV Interior Double Dome Light...
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  • Troubleshooting Haulmark Trailer Dome Light
    First I recommend you carefully check the condition of the vehicle and trailer connectors. There could be an internal corrosion issue that is causing adjacent circuits to short. If the trailer has been stored outside for any length of time moisture could have migrated into the plug and caused nearby circuits to short. Also check the condition of the dome light's wiring and bulb socket. A trailer dome light will typically be powered either by a separate trailer-mounted battery or by the...
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  • Could Trailer Breakaway Battery Setup be Used to Power Interior Lights
    Breakaway batteries aren't typically used for powering interior lights but with a kit like the Hopkins Engager part # 20099 you'd have a kit that would come with a battery charger as well. I'd recommend LED interior lights as they draw considerably less than incandescents like the Optronics kit part # RVILL34.
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  • 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...
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  • How is the Optronics RV Interior Double Dome Light Powered
    The Optronics LED RV Interior Double Dome Light with Switch - 815 Lumens - White Housing - Clear Lens # RVILL34 are designed to be wired into your RV or trailer's power distribution box. If you're using this to replace an existing light, you'll just connect the black wire to power and the white to ground since the connection to the power distribution box is already made. If you're installing this completely new without any existing wiring, that would need to be run to the power distribution...
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  • Recommended Enclosed Trailer Lighting for 22 Foot Work Trailer
    For your enclosed trailer, I recommend you use the Optronics LED RV Interior Light with Switch - 18 Diodes # RVILL34. This light has the equivalent of a 60 watt incandescent bulb. I've attached a video that shows 3 of these lighting up an RV so you have a reference. Each light only draws 0.6 amps at 12.8 volts. So you will have lots of time without draining your truck battery. If your 12V power to your 7-way is connected to your accessory on your ignition, sometimes they are and...
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  • How To Install the Optronics LED RV Interior Double Dome Light When Wire Colors Don't Match
    The Optronics LED RV Interior Double Dome Light part # RVILL34 has two wires, black for power and white for ground. In order to use this to replace an existing light you'd need to test the wires on the trailer with a circuit tester to determine which is power and which is ground. I do not recommend matching wires by color.
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  • Can Small Lights Appliances be Ran Off of Battery Installed in Trailer
    Depending on how long you are camping and how many accessories you need to run and for how long will dictate how big of a battery power source you would need to use. For what you are doing most people use a standard car battery in their trailer to power some small LED lights. LED lights hardly draw anything so they would be the way to go. For interior you would want the part # RVILL34. For an interior/exterior light that is also LED you would want the # ILL22CB. The part # 37185 can be...
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  • 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.
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  • Color of White the Optronics LED Interior Light # RVILL34 Emits
    If you check out the picture I attached you can see the color of the light that the Optronics LED Interior Light # RVILL34 emits. It's more of a soft white than a bright white. We don't have an exact color figure though. Also check out the review video for this light that I attached below. It shows it in use and installed.
    view full answer...
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  • Ceiling Light/Dome Light with Warmer Color Temperature than Bright LED Lights
    For some lights we have the kelvin data but not all. To get the warmth you are looking for you will want to switch from LED to an incandescent assembly such as # RVIL22. LED lights tend to be too bright in some cases, like what you are experiencing, whereas with incandescent there is more of that soft glow. Not to mention that most of the LED assemblies have LEDs that cannot be replaced. With an incandescent light you won't have that issue and if the bulb needs to be cooler or warmer in...
    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...
  • How to ID Enclosed Trailer Wire When Installing Optronics LED Interior Light
    Yes, on the Optronics LED RV Interior Light, # RVILL34, the black wire will be the 12-volt power wire and the white wire will be the ground. If you are having issues with finding which wire is power and ground on your trailer, then I recommend using a circuit tester like # PTW2993. Clip the alligator clip to the trailer and then probe the wires. When the tester lights up that wire will be your 12-volt power wire.
    view full answer...

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Info for this part was:

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Written by:
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