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  1. RV Interior Lights
  2. Gustafson Lighting
  3. Dome Light
  4. LED Light
  5. Surface Mount
  6. Switch
Gustafson 12V LED RV Dome Light - Double - 11-1/2" Long x 4-3/4" Wide - White

Gustafson 12V LED RV Dome Light - Double - 11-1/2" Long x 4-3/4" Wide - White

Item # 277-000340
Our Price: $42.83
RV Interior Lights
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Gustafson Lighting RV Interior Lights - 277-000340
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Each side of this RV double dome light functions independently so you can turn 1 on for extra light while you're doing dishes or both to light up your whole room. Energy-efficient LEDs last longer and burn brighter than incandescents. Great Prices for the best rv interior lights from Gustafson Lighting. Gustafson 12V LED RV Dome Light - Double - 11-1/2" Long x 4-3/4" Wide - White part number 277-000340 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (133)
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Gustafson Lighting RV Interior Lights - 277-000340

  • Dome Light
  • LED Light
  • Surface Mount
  • Switch
  • 12V
  • 11-1/2L x 4-3/4W Inch
  • Warm White
  • White
  • Gustafson Lighting

Each side of this RV double dome light functions independently so you can turn 1 on for extra light while you're doing dishes or both to light up your whole room. Energy-efficient 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, white LEDs last longer and burn brighter than incandescent bulbs
  • Integrated switch lets you turn both lights on, 1 light on, or both lights off
    • Can also be wired to an interior light switch
  • Clear plastic lenses are less likely to shatter than glass lenses
    • Textured pattern helps disperse bright light throughout your RV
  • Durable, white 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: 11-1/2" long x 4-3/4" wide x 1-1/4" tall
  • Overall mounting hole spacing (center to center): 9-3/8" long x 3-1/2" wide
  • Voltage: 12V DC
  • Wattage: 6 watts
  • Light output: 225 lumens
  • Number of LEDs: 18
  • 1-Year warranty

Gustafson RV 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 horse trailer? This dome light has bright white LEDs that give you brighter light underneath a kitchen cabinet, in a walkway, by a workbench, or inside your enclosed trailer.

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 or overload your circuits.

Lights Can Be Individually Operated

Gustafson Lighting Individually Operated Dome Light

The 2 lights on this dome light can be individually operated using the integrated switch on the housing. This means that you can turn 1 light or both lights on and off, depending on how much light you need in your workspace or RV living room.

Surface-Mount, Bolt-On Installation is Easy

Installing Gustafson Lighting RV Dome Light

This surface-mount dome light is incredibly easy to install either as an upgrade or a direct replacement of your existing light. To access the bolt holes, snap the lenses off the housing. Then, using hardware (not included), bolt the housing onto the ceiling, wall, or cabinet before snapping the lens back on. The light has a 2-wire design that hooks up to ground (white wire) and power (black wire).

GSL9514 Gustafson Lighting 12 Volt LED RV Pancake Light - Surface Mount - 18 LEDs - White

Customer Satisfaction Score:

Customer Reviews

Gustafson 12V LED RV Dome Light - Double - 11-1/2" Long x 4-3/4" Wide - White - 277-000340

Average Customer Rating:  4.7 out of 5 stars   (133 Customer Reviews)

Each side of this RV double dome light functions independently so you can turn 1 on for extra light while you're doing dishes or both to light up your whole room. Energy-efficient LEDs last longer and burn brighter than incandescents.


These lights are just great. Replaced the ones in our 2000 trailer and it is so much brighter with the LED lights


I am very pleased with these lights, easy to install and bright.



Still working brightly.


Replaced 3 12v double incandescent fixtures in our camper with the double LED fixtures. At this point very happy with the installation and the LED fixtures are a whole lot brighter. I excited to see how they due next month camping off grid. I'm hopeful that the new fixtures will draw less current from the batteries while they are operating.


Very nice bright lights . Screw pattern fit exactly the one from the old lights. One thing to note in my motor home you must check the polarity of each light . One side is the reverse of the other. I am pleased with them .

Kenneth W.


Working fine


Great light.3 watts per side, 6 watts total. Now have our entire travel trailer switched over to these lights. Can now go whole weekend on one battery and still have some juice left afterward. Easy install.


The product was actually better than the original that I replaced.


I've purchased 4 of these so far and my wife and I both enjoy these lights as a nice upgrade to our OEM lights. They were easy to install, and we like the 3 position switch [OFF/Light 1/Light2] that gives us nice control of how much light we need.


Shipped in a "Beautiful" cardboard bow (that will be reused). Hooking up the new light was easily accomplished. I can now see! LOL


Love these lights.
we changed over to
these lights in our older ( 2007 ) trailer 2 years ago, nice and bright, and they hardly use any power. great battery life, I don't even weary about how many lights are on in the trailer anymore. and the switch design is great, your able to turn on one side or both, whatever amount of light you need.

Now we just bought a newer ( 2013 ) fifth wheel and immediately upgraded all the lights to LEDs. once you have had LEDs in a trailer you will hate going back to regular lights. Incandescent lights take to much energy and are a lot dimmer.
also these LED light Fixtures, are a good looking light, easy to mount, the lens are easy to remove. And there not very tall, love the low profile.

Ron E.


They are still working great, no problem, love the energy savings, they just Dont run the battery down.


Perfect replacement for original light, everything lined up exactly.


As usual, the product arrived on time and in perfect condition. The polarity of the hook up wires were reversed. Once I figured this out, the installation was a breeze. I replaced 3 broken original equipment fixtures that had incandescent bulbs. Boy are these things bright! This was a pleasant surprise, much better lighting than the original fixtures. The mounting hole pattern matched the originals, that was also very nice. Overall, despite the polarity mix up, these LED fixtures are a great value and I would not hesitate to recommend them to another person.

Robert F.


Still very satisfied, will be replaceing the rest of the original lighting with these as they fail.


Great service and very quick delivery. Very way to deal with and very responsive to my questions.


Easy install and perfect replacement. (however, wish there were a version available with accessory plug-in for reading light on an extension cord, which was on the replaced original light)

Bob G.


Lights continue to work flawlessly


This Gustafson double dome clear lens light item #277-000340 works fine for where I am using it. It should be noted that a "slim" low profile light will sacrifice coverage area due to the lack of depth of the fixture. In other words, the radius of coverage most likely will not be as great as compared to a fixture with more depth because a lens that has more depth can provide a wider radius of coverage. This isn't a big deal for the location I am using this light but it might be for some people in some applications. Because there isn't a lot of options for dual LED lights that can be switched to only one side or both I decided to give this one a try. It also was one of a few that was large enough to cover the holes from the old fixture. I do like the apparent brightness gained over the old incandescent fixture and I am happy with the "whiter" light. I am also very happy with the far better efficiency of the LED source. I measured its current draw at approximately 1/6 that of the old fixture. The LED fixture draws approximately .25A per side versus the incandescent at 1.5A per side. LEDs also generate far less heat. I find no downside to LED fixtures, only great gains. If you try a decent LED fixture I doubt you will ever again be satisfied with an incandescent fixture. They really are that much better.


Light really works nicely, very bright and a breeze to install. Ordered another already. Nov 24, 2018


much less heat and draw than the old fluorescent fixture, plenty of light


Switched from older incandescent light fixtures (12 volt) to LED fixtures. 10 fixtures completed the project. The lights are ; brighter, give off less heat, don’t burn out, have two levels of brightness ( 50% energy reduction per LED fixture if you use the three position switch) and they look good in the boat.

I recommend the LED fixtures.


Bought this light fixture to replace the original incandescent bulb fixture. Installation was fast and easy. I absolutely love the bright white result.

Danny M.


Still working and bright


This led fixture provides more light and less heat, it looks elegant too.

Installation was straightforward after watching the video on

There were no instructions included with the product though, and the video did not mention the mounting holes for the new light are not the same as the old brand; thus you will be drilling new holes in your roof.


When I got my 5th wheel trailer it was missing a light. Quality of this light is very nice. It puts out a nice white light. Not the bluish light with some LED's. It would be nice if it came with mounting screws though. No big deal! Great Light!


The lights that I have installed are working great. Better lighting than the incandescence that were in my rv. Great service also.


Quality product. Good bright fixture with a three position switch to conserve energy. Installation was easy and fast. Reduced power consumption to less than one half. Highly recommended, would purchase again.


These LED lights replaced standard incandescent units in our camper. They were easy to install, use much less power, can switch one 1 or both sides ON as needed, provide a soft lower glare light, and should outlast the camper itself. Both my wife and I agree that they are a great improvement.


With this Class 'C' motorhome being 39 years old, I am gradually replacing the incandescent interior lights with LED-based ones. It's my opinion, that Gustafson makes quality lighting fixtures so that is the reason why I am using this particular Gustafson model LED interior light fixture.


I have purchased 5 of these LED light fixtures and I am very happy with them. The LED lights themselves are very bright and draw almost no power which really helps when I am dry camping in the desert. These light fixtures are one of the few that is the correct size to replace the old square/rectangular light fixtures that came on my Weekend Warrior 5th wheel without leaving holes in the ceiling from the original light fixture. You cant beat the price either!

Show More Reviews

See what our Experts say about this Gustafson Lighting RV Interior Lights

  • Recommended Replacement LED Light for Jupiter 07-004WW/NW Dome Light
    I have a solution for you, but we do not offer that exact light that you've mentioned. However, from what I was able to find out, that light is a surface mounted LED light with a switch that is approximately 9" long. I recommend taking a look at the Gustafson RV Pancake Light - Double Dome - Clear Optic Lens - 18 LEDs # 277-000340, which is a bright LED pancake style light with a switch. This light is 11" long, so it's a bit longer than the light you're replacing, but that's just going...
    view full answer...
  • Do Bulbs of Gustafson RV Pancake Light # 277-000340 Ever Need to Be Replaced
    The Gustafson RV Pancake Light # 277-000340 that you referenced has LED bulbs which are going to last a long enough time that you'd never really have to worry about replacing them. They aren't replaceable but since they are LED panels you really wouldn't need to worry about it.
    view full answer...
  • Recommended RV LED Light Fixture with Warm LED Lights
    I may have a solution for you, but the Gustafson RV Pancake Light # 277-000340 does not come in a configuration with a warm LED or light cover. The closest solution we have for warm white lights with swtiches would be something small and circular like the # 328-K-1020WSM2 or # 328-K-1003WS. I've linked a video review of this part for you to have a look at.
    view full answer...
  • Are There Rectangle RV Dome Lights
    There are absolutely rectangle RV dome lights and you can choose between incandescent or long-lasting LED; here are the options for rectangle RV dome lights: - Optronics RV Interior Double Dome Light with Switch - Incandescent - Rectangle - Clear Lens # RVIL22 - Omega RV Double Dome Light with Switch - Surface Mount - Incandescent - Rectangle - Clear Lens # 328-001-902XPW - Opti-Brite LED RV Dome Light - 227 Lumens - Rectangle - White Lens # ILL36CB - Opti-Brite LED RV Dome Light -...
    view full answer...
  • Recommendation For Compact Interior RV Lights
    The Gustafson RV Pancake Light, Item # 277-000340, has three settings: off, one light, both lights. Based on my research, dimming the lights is not an option. How many lights you need would depend on how much light you want in your van interior. I recommend going with 3-4 lights depending on your needs. Contact us if you have any other questions.
    view full answer...
  • LED Fixture Compatibility to Replace Fluorescent T5 Fixture
    You can replace your current T5 fixture with the Gustafson RV Pancake Light - Double Dome - Clear Optic Lens - 18 LEDs # 277-000340. The LED fixture has the circuitry integrated to make it function correctly on 12V power.
    view full answer...
  • RV Dome Light with Frosted Lens
    While we don't have a version of the dome light part # 277-000340 with a frosted lens we do have the Bargman dome light # 30-76-243 which has mostly frosted lenses.
    view full answer...
  • LED Dome Light Recommendation for RV Interior With Adjustable Brightness
    The part # 277-000114 that you referenced can only turn on both lights or turn off both lights. They can not be activated independently. You may instead be interested in the LED Dome Light part # 277-000340.
    view full answer...
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  • Kelvin Temperature for Gustafson RV Pancake Light # 277-000340
    The Gustafson RV Pancake Light # 277-000340 referenced in your question features a warm light with its 18 LEDs and a lumen output of 225. When I reached out to my contact at Gustafson for the Kevlin temperature they stated that they do not keep this information on their lights like this one. I have attached a short video demonstration on this unit as well so you can get a closer look at its light output and color.
    view full answer...
  • Does Gustafson RV Pancake Light # 277-000340 Have Stickers on It
    We put easy to remove etrailer stickers on everything we photograph to help deter people from stealing our pictures. So long story short, the Gustafson RV Pancake Light # 277-000340 that you referenced does not come with stickers on it.
    view full answer...
  • 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.
    view full answer...
    Image 1 for Image 2 for
  • Replacement For Bargman 30-92-XXX Interior RV Lamp
    I believe what you're referring to is a Bargman double interior light fixture. Bargman manufactured this lamp back in the 90's, and it's been discontinued for quite awhile (as well as the lenses) so your best bet would be to replace the fixture with currently available, similar lamp like # 328-001-902XPW from Command Electronics. For a similar style LED lamp, I'd recommend the # 277-000340 from Gustafson. The LED version would be brighter and would draw just a fraction of the power of...
    view full answer...
  • Wiring Installation for the Gustafson RV Pancake Light # 277-000340
    You are correct that the red wire is for power and the black is for ground on the Gustafson RV Pancake Light # 277-000340. When it comes to connecting it to the wiring in your trailer unfortunately there are no standards when it comes to that wiring. Simply test each wire with a circuit tester like part # PTW2992 to see which one receives power and then connect the red wire to that.
    view full answer...
  • LED Dome Lights With On/Off Switches For A 2011 Trailmanor 2720 RV Interior
    The closest similar options to the Opti-Brite LED Dome Light # OPT58FR with an on off switch are the Gustafson RV Pancake Light - Double Dome Item # 277-000340 with 11-1/2" L x 5" W dimensions or the Gustafson RV LED Dome Light w/ Button # 277-000492 with 9" L x 4" W.
    view full answer...
  • Interior 12V Dome Lights with Switch to Replace Bargman 89-Series
    The Bargman 89-Series Interior RV light 30-89-007 is a 12V square incandescent ceiling light with a switch and that measures approximately 6 1/ 4 x 5 1/2 x 1 3/4-inches. We do not have this particular light but we do offer a wide range of RV interior lights and some are close to this light's dimensions. Others that are larger give you the opportunity to upgrade your interior lighting. For example we offer the Gustafson RV Pancake Light # 277-000340 which has high-efficiency LEDs instead...
    view full answer...

Do you have a question about this RV Interior Light?

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Hayden R
Installed by:
Hayden R
Employee Mary K
Written by:
Mary K
Employee Isabelle B
Updated by:
Isabelle B
Employee Noah M
Updated by:
Noah M

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