|Item Weight||4 ounces|
|Package Dimensions||6.42 x 3.31 x 1.18 inches|
|Item model number||8542095250|
|Is Discontinued By Manufacturer||No|
|Manufacturer Part Number||921 Replacement LED Bulbs|
|Mirror Lighting Type||Automotive-interior-dome-light-bulbs|
20 x Super Bright T10 921 194 LED Bulb For RV Trailer Camper Motorhome Boat Ceiling Dome Interior Light 12V 24-SMD Natural White Wedge Lamp (Pack of 20)
- Make sure this fits by entering your model number.
- 921 LED Bulbs for ceiling dome light (single or double).
- 3 Watts, 624 lumens. Ultra bright, don't look directly at the lights to protect your eyes.
- 2020 Upgrade, NO Flickering, NO Buzzing and NO Radio or TV Interference.
- 3500K Natural White Color Temperature Create a Crisp and Fresh Ambiance.
- Safe, eco-friendly, No UV or IR radiation and longer lifespan, 1 Year hassle free warranty and satisfaction guaranteed! Or your money back!
Consider this Amazon's Choice product that delivers quickly
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Voltage: DC 12V
Total Height: 38mm
LED Type: Latest 2835 chips SMD
Color: Pure White
Color temperature: 3500K
This is Standard T10 194 921 168 adapter, Using for cabinet light, RV lighting, boat and landscaping lights, etc.
2020 New Arrived
Much safer, Brighter, lower power consumption
300% Brighter than Normal SMD/LED
This listing features 20 pieces of Brand New, super bright 3nd Generation T10/194 24-SMD LED Lights. Each LED bulb contains 24 Latest Beautiful High Power 2835 SMD chips, which are much brighter than the stock OEM traditional lamps. and the same type of LED bulbs sold by other sellers.
Our LED Advantages:
- Energy Saving, Environmental-friendly.
- Low heat generation ensures a longer bulb life, Up to 50K+ Hours Life Time.
- Easy installation, Direct plug in and play.
- Immediate response, 1000 times faster than Traditional lights.
- Bulbs are shock and vibration proof.
- Functional and durable LED bulb, you will love it.
Top reviews from the United States
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I was concerned about reliability, apparent brightness, color rendition, the possible RF interference that has been mentioned in reviews here. Also, I have been searching for good pricing on a retrofit so cost/value is a concern. I will hit each subject below. All 20 modules were installed in interior dual-lamp and a few single-lamp fixtures on 1/22/2018, replacing most of the standard incandescent lamps in the interior of our 2006 Coachmen Mirada 330SL. Overall, I am pleased with these and will keep using them if they work long term.
>Reliability: Initial reliability was 100% as all 20 of the modules worked when installed. I installed and left them on for somewhat over 1.5 hr. All were still working just fine and the fixture lenses were cool. Longer term reliability will be updated as we go on camping trips beginning spring 2018. (Also, I accidentally installed one backwards and it still worked fine, although it doesn’t make sense to only illuminate the reflector from a distance of ½ inch. These modules have on-board switching power supply or regulators so voltage polarity does not matter)
>Apparent Brightness: I was pleasantly surprised that illumination of objects below seemed marginally brighter than the old incandescent. Pictures of the fixture with one incandescent and one LED module installed do appear not as bright though. I attribute this to the fact that the fixture reflector is not illuminated at all with the LED modules, but is illuminated with the incandescent bulbs.
>Color Rendition: I got the Warm White (3000-3500K Color temperature). Mostly brown and grey colors in the interior were pleasing to the eye. I did not notice any odd appearance on other color items. I have no problem with the color rendition.
>RF Interference: I purposefully monitored the two TV’s, XM radio, FM radio, Garmin GPS, and TireMinder TPMS, and my Apple Iphone while installing and turning on ALL the fixtures that had LED lamps installed. The TireMinder TPMS uses a dedicated RF link from a repeater in the back of the motorhome AND Bluetooth link to the Apple Iphone. (I did not try AM on the radio as it does not receive anything on that band anyway).
When the front TV (a 32 inch Vizio flat screen) was on, and the fixture within 1 foot of the top front of the TV screen was on with LED modules installed, using the antenna and local TV stations, I lost signal on exactly one local channel (and its sub-channels) ONLY (that was 13.1, 13.2, 13.3, RF between 210-216 MHz). This did not occur until the fixture had been on for a few minutes. But, strangely, it was reproducible immediately after that first few minutes by simply turning that fixture on and off. With that one fixture off, but all others with LED modules on, there was no interference noted. The rear TV (a Samsung flat screen) had no interference on any local channel, including channel 13. The nearest fixture to the rear TV is about 2 feet from one corner of the flat screen.
The XM radio worked fine throughout. The Garmin GPS, sitting on the dash maybe 4 feet below and 2 feet over from the nearest fixture always had satellite lock. The FM radio I scanned through several local stations and all sounded normal. The TireMinder TPMS registered apparently correct pressures and temperatures on my Iphone App (Bluetooth interface). My Iphone cell strength registered 3 of 4 bars throughout the length of the RV when held at eye level, walking through slowly and stopping when phone was near each powered fixture. The house wifi is at least 75 feet from the RV and looking through several walls and a metal garage door so I paid no attention to it (e.g. I did not set up a test for wifi interference).
>Value: Well, I can’t complain about these for $1.14 each including free shipping!
>Vendor/packaging: Vendor met the PRIME shipping time. Outer packaging was good (a padded bag with box in it - modules are in another bag in the box) but 20 modules are in a bag with no individual padding from each other. There were some tiny pieces of plastic or other debris in the bag but all worked so it was no problem for my shipment.
>Insertion force: They did require a fair amount of force to insert in the socket as other reviews have reported. I held the socket with one hand and firmly forced the lamps in with the other hand as I was afraid I would break the socket mount. All went in and I would rather have them tight so they don’t vibrate out.
>Other: The lamps in the shower fixture, vanity (decorative bulbs), and front dash fixture have different bulb base types so I will have to find a different retrofit for them. The orientation of the socket for the stove hood lamp is such that this module would be turned 90 degrees from what is needed so I did not put one there. I don’t plan to retrofit these in the basement compartment lights due to humidity exposure. I’ll keep looking for something sealed for them. I may play with RF shielding and grounding the LED modules/reflector in the fixtures near the front TV that that had interference to see if that helps.
I forgot to have my wife plug/unplug RV from shore power to see if there is any brightenss change or other effects. Will do that soon and edit this if possible.
If any of you engineers/tech types have access to a spectrum analyzer, a spectrum picture of RF noise output from one of these would be interesting.
Photos: 1) Compare incandescent in left side, LED in right side, without lenses installed. (pix is rotated CCW 90 degrees) 2) same with lenses installed 3) TV interference 4) pix from floor level looking at front fixture (by TV) with 2 incandescents installed, and other fixture with 2 LEDs installed.
They were so bright that in many of the fixtures, I turned them upside down so the light points up to the reflector and I get a little more indirect light. Over the sink and shower I used it pointed down since I want plenty of light there.
My battery is a little tired and when the inverter would switch off, you could see a noticeable drop in brightness of the 921s. I had all 20 of these on and could not even see them blink when the inverter went off.
The only thing left to test on these guys is longevity. Some of my bulbs were almost 10 years old....what will these bring?
Top reviews from other countries
This was easy to install, shape shined the light in the direction needed and fit in the standard plastic housing. FYI-I installed this in a 2007 Rockwood rv. FYI- I did not rate the longevity because I haven’t used them for long.