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  1. RV Interior Lights
  2. Gustafson Lighting
  3. Dome Light
  4. LED Light
  5. Surface Mount
  6. 9-1/4L Inch x 3-3/4 InchW Inch
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
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RV Interior Lights
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RV Interior Lights 277-000492 - 9-1/4L Inch x 3-3/4 InchW Inch - Gustafson Lighting
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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. Lowest 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 (61)
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Gustafson Lighting RV Interior Lights - 277-000492

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

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 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   (61 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.


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


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


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


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


Arrived quickly and exactly what I needed. Perfect match. Easy instillation. In the beginning God said, “Let there be light.” And with etrailer, there was! You are definitely on my go to list!

Couldnt be more perfect. Probably need to order the smaller one to put in storage in case I need one or two of those.
JAMES W - 10/25/2021


Exact light I needed. But, came with no mounting screws. Other than that, a good buying experience.


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


Great fit for my Flagstaff hardside A-Frame. Easy install & works great so far


The interior light that I purchased is exactly what I wanted. It matches my other lights perfectly. I have had nothing but good experiences dealing with etrailer for my past purchases. THANKS


Great product. Have ordered several and all work well


Just got around to replacing the light in my camper. Works fine, nice and bright. Happy.




I received my light exactly as promised. etrailer was the only supplier I could find that perfectly matched the light I needed for my travel trailer. Great service and price!!!


The shipping time was as promised. The lights work great and are the exact replacement I needed.


This product was exact replacement light I needed for my Forest River RV. I received excellent info when I called for help. I will use e-trailer again without hesitation.


The R V Dome light was an identical replacement for all of the dome lights in my Georgetown R V. I searched all over and finally found the replacement lights at etrailer! I could not be more satisfied.


The items were just what I needed and arrived fast. Will definitely be purchasing all my RV parts from here.


Exactly what I ordered, shipped same day as ordered and arrived day earlier than promised. Great service.


Still working great ! Easy install too. Actually purchased 2 just to have a backup. The best thing is it was a direct replacement! No modification needed . Thank you for the correct parts


Look like direct replacement came quicker than expected


The RV Dome light was an exact duplicate of what I was trying to replace. I could not be any happier with the product and service.


Speed from order to delivery was excellent and informed every step along the way of progress. The lights themselves are an exact match of those in my RV and took me only minutes to install 4 of them. Great service and will be my first place to look if I have any requirements in the future. Many thanks


I like these lights and they are easy to install.


Too expensive


Worked fine

Show More Reviews

Ask the Experts about this Gustafson Lighting RV Interior Lights

  • 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...
    Image 1 for
  • 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...
    view full answer...
  • 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...
    Image 1 for
  • 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...
  • 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...
  • 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...
  • 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.
    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...
  • 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...
  • 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...

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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 E
Written by:
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Employee Amanda M
Edited by:
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Employee Matthew E
Updated by:
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Updated by:
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