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Gustafson 12V LED RV Dome Light - Single - 9-1/4" Long x 3-3/4" Wide - White

Gustafson 12V LED RV Dome Light - Single - 9-1/4" Long x 3-3/4" Wide - White

Item # 277-000492
Our Price: $19.62
You Save: 41%
RV Interior Lights
Shipping Weight: 0.35 lbs
In Stock
Gustafson Lighting Dome Light - 277-000492
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Use integrated switch or wire to a light switch to turn the single 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 Gustafson Lighting. Gustafson 12V LED RV Dome Light - Single - 9-1/4" Long x 3-3/4" Wide - White part number 277-000492 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (104)
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Gustafson Lighting RV Interior Lights - 277-000492

  • Dome Light
  • LED Light
  • Surface Mount
  • Switch
  • 9-1/4L Inch x 3-3/4 InchW Inch
  • White
  • Gustafson Lighting
  • Bright White

Use integrated switch or wire to a light switch to turn the single 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.


  • Single dome light gives you bright, accented light in your RV living space or enclosed trailer interior
    • Perfect for underneath kitchen cabinets, in interior trailer spaces, in walkways, and more
  • Included energy-efficient, white LEDs last longer and burn brighter than incandescent bulbs
  • Integrated switch lets you turn the light on and off
    • Can also be wired to an interior light switch
  • Frosted plastic lens won't shatter if accidentally dropped like glass lenses would
  • 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: 9-1/4" long x 3-3/4" wide x 1" tall
  • Overall mounting hole spacing (center to center): 4-3/8" long x 2-1/2" wide
  • Voltage: 12V DC
  • Wattage: 6 watts
  • Power draw: 0.5 amps
  • Light output: 352 lumens
  • Number of LEDs: 12
  • 1-Year warranty

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.

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). Once you're finished, you can then turn the light on and off using the integrated switch on the base.

GSL9674 Gustafson Lighting 12 Volt LED RV Pancake Light - Surface Mount - 12 LEDs - Frosted White

Customer Satisfaction Score:

Customer Reviews

Gustafson 12V LED RV Dome Light - Single - 9-1/4" Long x 3-3/4" Wide - White - 277-000492

Average Customer Rating:  4.8 out of 5 stars   (104 Customer Reviews)

Use integrated switch or wire to a light switch to turn the single 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.


I’ve ordered a couple of things from each etrailer now, and they continue to surprise me with superb quality. I purchased LED interior lights and a nice exterior porch light for an old trailer and the upgrades have really improved. The old giggle box shipping was fast and their service was very trouble. Free would definitely order from them again.


Total fail on this order. Tire was back ordered. I decided to wait for it. The date code on the tire is 5/21, the new tire is 14 months old. The order was shipped in a box 2.5 times the size of the order. The halogen light I purchased was unprotected in the box with a tire rolling around on it from MO to VA. Sorry guys, big fail on this one.

I am so sorry that this happened to you! Was your light damaged in any way?
-- Etrailer Expert Sierra K - 07/13/2022
Light was scratched, and cover had rubber marks on it from the tire. I was replacing an identical light. My old cover was fine, so I used what I had. I made it work. Thanks
-- comment by: Stephen - 07/13/2022


Excellent replacement lights.


It was an exact match with other lights for my trailer. It seems like a more durable product than the original. It was easy to install.


These are the best RV lights I've ever seen!. Worth the price.
I've been buying led replacement RV ceiling lights to replace incandescent car type bulbs for my RV since 2018. I have had several older RV's. Most of them burn out after about 6 months or so because of poor design early in RV led lighting.4 years later, these lights are much better design with bigger heat sinks which keep the electronic parts cooler so they don't overheat and fail. I reccomend these for your RV.


Simply the best LED fixtures. Easy to install, video provided, I changed all my camper fixtures. I use my camper multiple times per year and love them every time I use them.


I have used these lights to replace 4 of my campers failing lights. They have a nice bright clear light & don’t flicker (first stage of LED failure) as my single 12 volt house battery voltage drops. So far very happy with purchase.


Have been replacing one of my original camper lights each yr as they die. So far these replacements are working fine and match my original mount holes. puts out a clean bright white light. Using bullet wire connectors make for an easy future replacement when needed


This lamp perfectly fit to replace my broken one and worked fine when installed.


Super quality, excellent range of light. I went through 2 different lights before finding a good quality light that performs. Had my purchase one year now and extremely satisfied with this purchase.

Etrailer provides great quality products and stands behind what they sell. Product and customer service is excellent.


Love it! Gonna buy another one or two.


The replacement lights matched the existing lights nicely. Easy installation. All five were in place well under half an hour. I will order more of these as needed or even ahead of time

Still shining. My trailer lights were simple to install and are working great.
Joe T - 05/28/2022


Great, super bright light that is compact and does the job. Wish it had switch to dim down a bit, but great value for the price.


Pulled the old incandescent fixture and installed the RV LED dome light - 10 minutes. had to us the drill for new holes and find some small fasteners in the shop.

The mounting holes of this assembly are separated by 2.5 inches vertically and 4.375 inches horizontally.
-- Etrailer Expert Katrina B - 03/15/2022


Thanks for the fast shipping will be buying from again


The website took me right to what I wanted. Service was great. Product works great.


The light output is great. t has an attractive streamline appearance. Although I should never have t, my only complaint is that once the cover is snapped into place, it is almost impossible to remove it without fear of breaking it.


Beautiful! Crisp white light (not blue!) perfect for the kitchen area where it replaced the factory incandescent light. The slim shape is also a big improvement for an under-cabinet mount. In addition, it looks sleek and stylish.

sold the trailer a few months after having the light installed. The buyer liked it and noted how unobtrusive it is.
Kirsten - 01/06/2022


great light, easy to install, nice switch. Just bought more to replace all incandescent fixtures in RV


Works well.


Great price and awesome service


We received exactly what we needed. Easy to replace and excellent service.


Perfect match for the lights my Palomino truck camper uses, clean bright light, 4 mount screw holes align with original holes making for a quick & easy install. I have now replaced most of the factory lights that started flashing after a week of use. These replacements have not failed yet after a 4 week trip. Happy camper!


Fit perfectly,while my local camper store couldn't even find one,I found it at bad ya have to replace the whole light/ was only 4 years old..will do all my light needs at etrailer

Nathan J - 08/08/2021


Exactly as described on the website. Nice upgrade to the original lights.

Show More Reviews

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

  • Compatibility of Gustafson RV LED Dome Light 277-000492 With 2018 Georgetown 36B Class A Motorhome
    If the existing lamps in your Georgetown Class A motorhome are 12 volt (which they should be), the Gustafson # 277-000492 would work great for you. If you're asking if these would be an exact replacement for the existing lamps in your motorhome, it would be very difficult to determine that. The RV industry doesn't operate like the auto industry where every 2018 Ford F150 with the 5.0L engine would use the same part number spark plug wires. The OEM equipment used in a given RV or motorhome...
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  • Replacement Bathroom Interior Light for 2018 Trail Runner Camper
    The Gustafson Interior light part # 277-000492 certainly could be used as a replacement assembly for what you have now but it might be slightly different. Either way it will fit pretty easily but you might have to drill new mounting holes. The mounting holes of this assembly are separated by 2-1/2 inches vertically and 4-3/8 inches horizontally.
    view full answer...
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  • Why isn't LED Strip of Gustafson RV LED Dome Light # 277-000492 Replaceable
    The LED strip of the Gustafson RV LED Dome Light # 277-000492 that you referenced is not replaceable as it's permanently fixed to the base of the light and even if it wasn't the panel is not a standard type of replaceable light. Also LEDs rarely fail so if you are worried that you'd install it and be stuck with a broken assembly you should note that failure of the light would be incredibly unlikely.
    view full answer...
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  • Will Gustafson RV LED Dome Light Survive Power Fluctuations in RV
    The Gustafson RV LED Dome Light # 277-000492 that you referenced is designed specifically for RV/trailer applications so it will absolutely survive the common voltage fluctuations/spikes it will go through in this setting. Just by its nature being an LED instead of an incandescent bulb it's also going to last much longer and require much less power to illuminate. I have attached a short video review that you can check out as well.
    view full answer...
  • What Color Of Light Does the Gustafson RV LED Dome Light with Button Produce
    The Gustafson RV LED Dome Light w/ Button part # 277-000492 produces a soft white light which will be around 2000K to 3000K on the Kelvin Scale. That said, the manufacturer does not specify this but you can use the video I have attached for you to get a better feel for the color.
    view full answer...
  • Amperage Draw of Gustafson LED RV Ceiling Lamp 277-000492
    The Gustafson # 277-000492 LED RV Ceiling Lamp you had looked at draws .5 amps at 12V.
    view full answer...
  • LaSalle Bristol Interior RV LED Light Was Flickering But Now Doesnt Work
    It could be a number of reasons why your LaSalle Bristol RV LED Dome Light # 344410PCDS010008RT, which is no longer offered from the manufacturer, started flickering and now does not work. On average LED bulbs typically have a lifespan of 50,000 hours and there may be a chance that it is burnt out. Voltage drops also will cause flicker, so if you have multiple appliances running at once, it may cause your lights to flicker. Finally, I would check the wiring to the unit itself. You can...
    view full answer...
  • Recommended Replacement For A Sunlink Lighting Star Series # RSBF-4N-008 Dome Light
    From what I can find of the Sunlink Lighting Star Series RSBF-4N-008 it is a 10"x 4" dome light with a button. Our closest option to this is the Gustafson RV LED Dome Light w/ Button # 277-000492. This light is slightly smaller at 9" x 4" so it's not an exact replacement but is is very similar in design. This 12v light has a simple two wire installation that can easily replace your old Sunlink light.
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  • What is Effective Lumens of the Gustafson RV LED Dome Light w/ Button
    The surface mounted Gustafson RV LED Dome Light w/ Button, # 277-000492 is rated at 352 lumens and 3,000K for color.
    view full answer...
  • Why Are Only Some Of My LEDs Lighting Up On My Interior Lights?
    Sorry to hear your Gustafson RV LED Dome Light w/ Button # 277-000492 aren't working properly! Since the LED strip in # 277-000492 is permanent to the unit, the only way to get a new LED strip is to purchase an entire assembly, unfortunately. But, before you do that, if you haven't already I recommend checking your ground connections for these lights as this is the most common reason LEDs don't function as intended. I know it's not ideal, but if you've verified that all of your lights...
    view full answer...
  • How To Remove The Translucent Dome To Access The Mounting Holes On Item # 277-000492
    I can see where that would be frustrating. The dome cover and white ring on the Gustafson RV LED Dome Light Item # 277-000492 can be removed together. Right along the bottom edge of the white cover there are two small slots on each side. The white ring snaps into those slots. The dome can be removed by simply taking something flat like a paint scrape and sliding it in between one of the long edges of the white ring and the dome and lightly separating them. The dome has a tab that slides...
    view full answer...
  • Recommended Replacement RV LED Dome Light With Switch
    Depending on the type of light you have whether incandescent or LED you could have a variety of reasons for why your current light isn't working correctly. Incandescent bulbs have a typical lifespan of 750 - 2,000 hours while LED's have a typical lifespan of 50,000 hours. Voltage drops typically are the cause of flicker so if you have other appliances or items running on the same circuit they could be causing the flicker. Loose connections could also be the cause, which would either be...
    view full answer...
  • How Does Lens of Gustafson 12V LED RV Dome Light # 277-000492 Come Off
    The outer ring of the Gustafson 12V LED RV Dome Light # 277-000492 comes off by prying off. There are four tabs around the ring that need to be pried off. Two on top and two on the bottom. You'd need to use a small slot screwdriver to pry them off.
    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.
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  • Recommended Replacement Dome Light For A 1990 Sea Ray Express Cruiser
    The closest options that we currently offer for an overhead light would be the Optronics 12V LED RV Dome Light - 10-5/16" Long x 4-3/16" Wide # RVILL34 and Gustafson 12V LED RV Dome Light - 9-1/4" Long x 3-3/4" Wide # 277-000492. Both run off of 12v DC power, which should be how the lights in your 1990 Sea Ray Express Cruiser should be powered. Both come with a switch to turn the lights on and off and are a surface mount design. If I were to choose between the two I would have to go with...
    view full answer...

Do you have a question about this RV Interior Light?

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video by:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Bradley B
Installed by:
Bradley B
Employee Mary K
Written by:
Mary K
Employee Amanda M
Edited by:
Amanda M
Employee Matthew E
Updated by:
Matthew E
Employee Isabelle B
Updated by:
Isabelle B
Employee Noah M
Updated by:
Noah M

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