GRV T10 C921 192 194 W5W 13-5050SMD Super Bright Wedge LED Bulbs for DC 12V RV Interior Ceiling Dome Camper Motorhome Boat Lighting Bulb,Cool White Pack of 10

I replace the dome lights in a 2002 Ford Explorer Sport Trac. What a difference these bulbs make over the old halogen bulbs. Ease of installation but had to make sure of the polarity before installing the cover. The color of the bright white is what I was looking for and these worked perfect. No Flickering and no code issues either.

Great !

Quick/simplified rundown for LEDs (without getting too technical). LEDs themselves do not interfere with radio/tv signals. The voltage regulator in some bulbs is what causes the interference: meaning if the input voltage shows a range (say 8V ~ 24V or similar), then good chance you'll have interference with certain signals. On the flip side, a bulb without an input voltage range (12V or similar) does not have a regulator and will not interfere with certain signals. Although a constant 12V may not always be supplied from your power source (i.e. RV batteries can reach 15V during charging). This could make a flat 12V LED bulb flicker or even burn out. This is just a general understanding of LEDs and is not meant to be a definite guideline for all LED bulbs.Now these specific bulbs do NOT have a voltage regulator and will NOT cause radio interference. I installed 15 of these bulbs in my RV: all overhead lights and bed reading lights. No interference whatsoever, including the lights right above the TV/Radio. The Warm White "GRV T10 921 194 13-5050 SMD Wedge LED Bulb lamp" matched the original halogen 921 bulbs very well! Although all the 921 halogens should all be replaced at the same time as they are not a perfect match to keep half-and-half. As for flickering and/or burning out some of the LEDs, I cannot comment on that yet. These bulbs were installed while I was hooked to shore power and there was no flicker, and they weren't on long enough to have any of the individual LEDs burnout. I haven't had a chance to test the lights on various stages of power source or bulb life. But so far so good, 5 stars hands down.I installed Cool White "GRV T10 921 194 13-5050 SMD Wedge LED Bulb lamp" above my kitchen sink, stove and in the bathroom. I wanted a brighter/cooler bulb for these areas. There is radio interference in these brighter ones, but I will only be using them for meal prep and bathroom use. That's why I used the Warm White "GRV T10 921 194 13-5050 SMD Wedge LED Bulb lamp" everywhere else - no interference, and a better match to the original 921 halogen bulbs. No complains with any of the bulbs, just need to know what you're looking for. Also, LEDs only work one way. If the wedge bulb doesn't light, try flipping it 180 and re-inserting it.

These are replacement bulbs for landscape lights that use those little 7 or 11 watt push in, incandescent bulbs. Like all LED lights, these draw less electricity and generally last much longer than the incandescent lights. This also makes possible using more fixtures on your same landscape transformer. These draw about 1/5th of the electrical power for a similar light output as the incandescent lights.

I am so happy with these bulbs. We just bought a new travel trailer (well, new for us, but a used 2013 Jayco). It had the standard 12v "921" bulbs in it. I wanted to replace them with LED's for two reasons...1. reduce the wattage when we happened to be camping without hookup, and 2. they run cooler which means less heat in the trailer in the summer, as well as keeping my kids from burning themselves on the ones near the beds.These are a perfect replacement. The color temperature is actually a perfect match for the standard RV bulb...I took a pic, which of course is somewhat bright and washed out by the light...it is a two bulb fixture, one bulb the original bulb and the other one of these replacements. You literally can't tell a difference in the color temperature (the one on the left is the LED). They seem to be about the same brightness too, maybe a slight brightness edge to the LED if anything, but as near as I can tell they are identical.The bulbs went in just fine. There is indeed only one correct way to put them in, so if the bulb isn't lighting, flip it around the other way. There wasn't a dud in my lot at all.I am thrilled with them. I need a few more, and am ordering another set. Love them! If you are looking to replace your RV bulbs with LED's, and want to maintain the same brightness and color temperature, then these are the ones you are looking for!

I purchased 20 of these to replace the incandescents in my travel trailer. At $2.33 each, they're a bargain, particularly when compared to what the RV suppliers charge for them (roughly $10 apiece, IIRC). Every single one of them worked 100% as advertised. They are roughly the same brightness as the OEM bulbs they replaced, the color hue is so close to the incandesents as to be indistinguishable unless compared side by side, radiate virtually no heat, and use approximately 10% of the energy.To those that don't know, LED bulbs aren't polarity-agnostic. In other words, if you install them backwards they won't light up. If you install the bulb and it doesn't work, just pull it out & rotate 180 degrees. All should be fine.There are a few reviews that mention some of the wires are too short to make contact. Not the case for me, and I have to wonder if the issue wasn't the aforementioned polarity problem.I have included a picture showing the new LED bulb adjacent to the OEM incandescent. The LED is on the left. Obviously there is a difference in color scale, but like I said, it's only noticeable when viewed side by side. Once they're all swapped out you'd never see a difference. Skin tones and everything else look perfectly natural. Oh, that greenish cast in the picture is probably a white balance issue with my picture. Doesn't look that way to the naked eye.When it's all said and done,Official Seal of Approval applied