GRV T10 921 194 24-2835 SMD LED Bulb lamp Super Bright Warm White AC/DC 12V-24V Pack of 10

Ok, so hubby and I were wanting to replace the incandescent bulbs in the RV with LEDs. We were looking for a way to do it without tapping into our boys piggy banks. I started looking on Amazon and came across these and others similar to these. Given the price, I could manage to buy 2 packs of 10 and outfit our entire RV.As other reviewers mentioned, they are stubborn going into the socket but they do fit, just press firmly at the base of the bulb.Before I changed out the old bulbs the converter box would click on with the incandescent lights on. Now, the hum is gone. (I'm sure there is a more technical way of explaining that with watts and voltage power usage mentioned but it is what it is.) These lights are nice and bright with a crisp clean look to them. I have ordered the warm white 10 pack for more ambient light in the sconce for use when we are watching TV in the living area and the bedroom areas. But I really think I like the cool white everywhere else, ex: kitchen counter, bathroom, over the dinette and hallway.)Very happy with the product. All the lights worked, were all the same color temp (not mismatched like other reviewers mentioned) and priced phenomenally for the quantity given ~$2.40 ea. These were sold and shipped by Amazon so it was speedy. The others I just ordered are apparently on the fourth slow boat out of China so it will be after the 4th of July before I get them but I am expecting the same quality of product.

Socket doesn't bend like some other brands. Wish they were brighter

I bought 20 of these for my 2010 Jayco. I was confused at first about the kind of bulbs I needed, since the whole socket comes out of the base, but the wires are permanently attached. It wasn't until I fiddled with it a little bit that I realized that the glass part of the bulbs just slides right out. I checked the size of the socket against the old bulbs, and they are almost exactly the same size (within 1/2 millimeter). These are noticably whiter/bluer than the old bulbs. Also, they aren't quite as bright, but they are more directional so they are bright enough. Best of all, these are inexpensive. I had no DOA bulbs. They come in a little smoke-colored static-resistant envelope that smells slightly fishy. They do take a little force to push them in (pushing on the socket part only), but I was able to change out all 20 in about 10 minutes.Now the priceless part of this is the energy savings. For longer camping trips at non-electric sites, it will allow us to go longer without worrying about running out of electricity. Granted, you still have the water pump and furnace to worry about, but being able to use 1/7 of the electricity for lighting for the cost of a few bulbs and 10 minutes of time is well worth the investment in my book.If you have an RV and you're on the fence, just buy these. You won't regret it.

I just intalled them in and preliminary finding is they work well. Experience will provide a more thorough evaluation. Here is what I found so far.--Got this model because of the variable voltage rating since voltage on our RV system approaches 14v at times.--Found the same difficult to install issue as most other reviews. Some I couldn't get in with direct pressure no matter how hard I pushed. During experimentation I found if you rock the bulb (by holder, not the LED paddle) side to side while pushing in they go past a resistance point and slide right in.--All 10 lights worked even though some got bent or dropped while experimenting with insertion methods.--I also found these replacement LED's to be slightly (emphasis) brighter than the incandescent 921's they replaced. I trust at low battery these will retain full brightness while the traditional bulbs dim. But some say these can be dimmed with a dimmer switch so I'll have to wait and see.--Our fixtures require two bulbs. In some fixtures I replaced both. In others I replaced only one side with the LED version. It'll be a good comparison.Four stars because I do not have ample time on them to give them five. So far I'm quite pleased. I am already thinking about purchasing another 10 of these after giving them a few outings.

These lights are exactly as described. They arrived in good shape and all of them worked. I used a light meter app on my Smartphone and made some measurements concerning color temperature and output of these lights as compared to the 921 incandescent bulbs they were replacing. The LED lights produced illumination values equal to or slightly higher than the 18w 921 bulbs that they replaced. The color temperature of the LED lights was measured at 3300 K whereas the 921 bulbs measured at 2655 K. This means that the LED light are a little whiter (colder) than the incandescent bulbs. It is not a big difference but it is noticeable. I think I will easily get used to the whiter light from the LEDs. I got no radio interference when I was using any of the lights. These lights are particularly well adapted to RV conditions. Because voltages in RVs sometimes vary depending on the state of your charged batteries or the condition of your power converter, these lights are designed to accommodate a range of voltages (11v-28v). Standard 12v LEDs have only a narrow range of acceptable voltages and when you get outside of that voltage the LED gets very hot. You don't need to worry about that with these bulbs due to their very generous voltage range. These are great lights at a great price.

Nice bulb bright

***** Perfect for the job *****

See my review of the 5050 SMD version below: https://www.amazon.ca/gp/product/B00EDFM3B2/ref=cm_cr_ryp_prd_ttl_sol_4These are great too just not as bright. I use them where I don't need the amount of lumens.Even my wife thinks they are great improvement.5050 version:All as proclaimed, bright, and quick shipping.Also bought the following with the 3528 SMD below:https://www.amazon.ca/gp/product/B00EDFM5QU/ref=cm_cr_ryp_prd_ttl_sol_5These are much brighter and work excellent in my RV (2006 Jayco) dome lights and outside "porch" lightI used the 3528 SMD ones in the under cabinet and bed lights. I used one of each in the bathroom as it did not require the brightness of two of the 505 SMD lights. The two versions match well in colour temperature and are both warm white.Note as mentioned in some reviews I bought the AC/DC compatible "bulbs" and these do not flicker when on shore power.Apr2017: these are still going strong and bright.

Used this 10 pack of bulbs in my travel trailer and they work great. The light output is comparable to the original bulb, only slightly less intense. Same colour temperature though. And at 1.5 watts / bulb compared 18 watts / bulb of the originals, I can have all 10 of these LEDs on and still draw less power than one of the original bulbs. It shows too. I can turn every light in the trailer on and the inverter fan doesn't even come on. Another big bonus is no heat. These LED bulbs stay cool to the touch unlike the finger blistering originals.

For the price you can't seem to really go wrong. Durability and time will tell as I haven't had a chance to give them a long term tryout. Quite bright and saves a TON of energy vs. original lighting. Great if you camp in RV on battery power. Only real drawback (as some have stated and may not be for all), is that it was VERY difficult to get them into original rv light sockets. At first I didn't think they would fit at all. With some cursing, swearing and maneuvering fingers and with assistance of a screwdriver, got them all installed. Hope they stand test of time, but as of today seem like a great buy!