CBconcept UL Listed MR11 GU4.0 LED Light Bulbs, 5 Pack, 2 Watt, Dimmable 230 Lumen, Daylight 5000K, 36 Degree Beam Angle, 12 Volt 20W Halogen Bulbs Equivalent, Landscape,Track Lighting - San Francisco

Great bulbs that replace your old halogen lights that run very hot and use a ton of electricity.These replace the small MR 11 two pin bulb.Fit right into my existing lights. Check out the picture. The bulb on the left is the new LED bulb and the right is the old halogen. Big difference!!

I used these bulbs for my Malibu Bollard landscape lights. With the halogen lights that were originally in the fixtures the brightness of the halogen bulbs would get dimmer on the fixtures furthest from the power supply. I replaced the halogens with these bulbs and the fixture at the end of the string is as bright as the first one on the wire. I bought the daylight LED bulbs and they are much brighter than the halogens and use 23 watts less power per bulb. Don't pay attention to the reviews stating RF interference as my garage door opener has had no issues at all and the lights start only 20 feet away from the opener. Buy these bulbs, you definitely won't regret it.

Most MR11 LED do not dim. This does adequately. best if used with 12v DC and a PWM decoder.

It took me six months to figure out that these little buggers were interfering with my garage door opener. It was driving me crazy!!! The problem was seasonal and intermittent. In the evenings during Fall and Winter when arriving home from work between 5-6pm, my garage door would not open with either the stock clickers or the transmitters built-in to either of my vehicles. I called Chamberlain customer support and had a lengthy conversation with a very knowledgeable customer service named Crystal who said my problem was most likely being caused by LED light bulbs somewhere in my house. At the time, my neighbors and I had LED Christmas lights in the front yard, so those were a potential culprit and there was no way to troubleshoot without seeming like the Grinch. After the holidays, I proceeded with my investigation. This was not going to be easy because I've converted almost all the bulbs in my house to LEDs. Crystal first identified the garage light built into the opener, which I had replaced with an LED bulb from Home Depot. So I swapped that out for a old-fashioned incandescent bulb. That did not fix the problem. Next culprit was the garage sconces on the outside of my house. I have these on a timer that comes on at dusk. These too I had replaced with Home Depot LEDs, so I changed back to Compact Fluorescents (CFLs). That didn't work either. Then I suspected it was my neighbor's garage sconces, but after checking with him, he was also using CFLs. So I decided to extend my garage door opener antenna by running a shielded coax cable to outside the garage door. The problem persisted. Then I bought a pack of ferrite core magnets ($20) to shield the door opener wires. Still no luck. I had read online that sometime the solder joint or circuit board traces develop hairline fatigue cracks which intermittently break contact, so I reluctantly sprung for a new transmitter board for the opener ($100). ARHHGGG!!!! All the while, my wife says she's not having any problems with garage door opening and closing from her car at all. Of course she's not typically coming home at that time of day.This morning I decided to rehash my tale of woe with my wife. I told her what Chamberlain tech support had said and about all the things I tried and that it only seems to be a problem when I come home from work. She says "you know...I've started using the built-in lights in our family room around the entertainment center in the evenings before you come home from work. Didn't you change those to LEDs"? Why yes I did. In fact to these very CBConcept UL-Listed MR11 GU4.0 LED Light Bulbs. They fit the MO: 1) LED bulbs 2) used in the evenings 3) in the fall-winter when its getting dark before 6pm and 4) only intermittently when sitting in the family room reading or watching TV, which is quite frequently but not always. So I turn these lights on, grab a clicker and go out in the driveway. Guess what...the door won't open. Come back in, turn off these lights, go back out in the driveway and TAH DAH...the door opens no problem. Have to admit...problem solved thanks to my wife!!! (she was also the cause, but we don't want to go there).So there you have it. As LED bulbs go, these worked worked great. The 3000K was a nice color and they worked with my dimmer very nicely. And they were much more efficient than the halogen bulbs they replaced. BUT BE AWARE THAT THEY MAY PREVENT YOUR GARAGE DOOR OPENER FROM WORKING.

I had halogen 12 volt rock landscape lights around my waterfall. I purchased these new LED bulbs because I wanted to add color to the landscape and the halogens generated a lot of heat and tended to have unpredictable lifespans - too often short lifespans. The rock lights are 15 years old and over time and weathering they have become a pain to open up to change the bulb. My hope is that these LED lights, being cooler and being LED, will have a much longer lifespan. They fit perfectly into my rock lights. My previous bulbs were 20 watts and these LED 20 watt equivalents are not quite as bright, but I didn’t expect them to be. I purchased these in blue and red. My previous bulbs were white. I’m sure if I had purchased these LED lights in white they would be comparable to my previous halogen bulbs. A standard 40 watt bulb in that lamp in your house will be brighter than a red 40 watt bulb in the same lamp. Same deal here. But, they are plenty bright and actually brighter than I expected. My waterfall is more beautiful than ever. These are a little more expensive than MR11 halogens, but the color alone made it worth it to me. The only thing I struggle with is, “Why did I wait so many years to do this?”Update: I do think I may have received one faulty bulb. It works fine most of the time, but sometimes it flashes on and off. It's entirely random. Some days it works fine. Other days I get this blinking. Sometimes the entire bulb flashes off and on and sometimes just part of it flashes off and on while another part stays dimly lit. I've seen it before. Back when LED bulbs were very expensive I put LED flood lights over my garage. They failed in thirds. One third of the bulbs died, then the other third and finally the last third. Issue with the circuit board I think. I can live with this one bad bulb. I've had no issues with the rest of them. Sometimes you get a lemon.

I was unsatisfied with my previous 2W 150Lm lights. I was looking for three qualities:1) Looks like a single light from straight on2) Less bright/harsh3) No afterglow when they're supposed to be offNumber 1, yes, these look great in direct view. Instead of my previous 15 obvious bright spots, I have 1 bright light!Number 2... searingly bright. The 200Lm rating is probably real. Not sure if it's the focusing lens or some overdriven LEDs, but these are painful to look at even from a distance.Number 3, nope. Even brighter afterglow than my last bulb. Less ugly as stated above, but definitely brighter.I can't comment on DOA rates, I didn't bother taking the rest of the bulbs out of the box. My search continues for a similar style, but higher quality 1W bulb.

Product came as described and had a nice light. Took very long to be delivered. I’m still giving it 4 stars beachside it’s downfall could have be avoided if I did some research. The bulbs flicked like crazy, it felt like there was a strobe light in my house. The bulbs I replaced were halogen bulbs and apparently LEDs will do this if you don’t switch out the drivers in the light fixture. For me personal it wasn’t the best option so I just bought halogens and problem solved.

Funcionaron perfecto, solo recuerden que estas son a 12v

These little MR11’s are bright! Color temperature are looks to be accurate at 3000K

Perfect replacement

Este tipo de foco lo utilizo para mi árbol de navidad porque tiene fibra óptica.