MASTERY MARTGU10 LED Light Bulbs Dimmable, 50 Watt Halogen Equivalent 5.5W MR16 Spot, 400lm 40° Beam Angle Flood Light Bulbs 2700K Soft White, 10 Pack

I bought the 5.5w 2700k variant. The color and overall effect of these is nearly identical to my old 50w halogens, except that these are brighter. My old dimmer didn't like these so I left in one halogen, which addresses the problem. The one halogen doesn't stand out at all. With one halogen in they dim very nicely. An LED-compatible dimmer should sort that out.

I needed the 5000 kelvin lights for the kitchen. These are bright and dimmable.

Work wonderfully in my office track lighting. Best part is that I get all the brightness of the original bulbs without all the heat.

Super bright, easy to install..but minus one star because they do not last forever..replaced two in a few years (

Bought these because and older halogen bulb burnt out. The light fixture has a different bulb removal way that normal. Took me some time figure out you have to push in a little bit then twist. But I love them because of the LED and lower voltage it uses. If your switch feels warm. It could be because the light is putting too much power. My dimmer switch when it hits around a third power will turn on. In the end is fine because the light fixture is by our dinner table so full power is basically where the dimmer stays.

The lights in the title were very hot and using a lot of power. They heated up the dimmer switch! These new lights were recommended by the electrician and have been fantastic! We ordered the 10 pack to start. They install in the same 2 prong base. The dimmer switch is no longer hot. We still need to replace 6 more. There is no flicker and we have the bright, daylight white; WOW what a difference. We have 20 lights on this track.

ordered them by mistake but I needed them for my stove as they were too expensive in my local stores.

Many thanks to "BBalldad" for his review in 2022 that cited how well these worked in a ZEPHYR RANGE HOOD, as I was unsuccessful with a couple other GU10 LED bulbs in our Zephyr hood. Encouraged by BBalldad's positive comments that specifically cited they were OK for the Zephyr, I bought them and was astounded and relieved he was right on the mark. Great example of the usefulness of Amazon customer reviews.

We had stuck with halogens for probably longer than we should've for our track lighting, but as we change our households lighting to LED one by one it was a eventual changeover. The price for LEDs have become very competitive as in the past there was quite a big price gap and more incentive to stay with halogens. I'll stress that the competitive price point seems to be inclusive to brands such as these on Amazon, as I couldn't find anything this affordable at say Canadian Tire. These were slated to replace our 50W halogen bulbs, and thus far they are doing a tremendous job.The aesthetics of the light produced is a bit different, not as sharp and cutting but more of a glow and spread - we quite like it. Aside from the energy savings, it's also not volcano hot and it's supposed to last a lot longer - the halogens we have seemed to need replacing very often.  Also worth noting that they Energy Star and UL certified. If it does as it says, it will likely outlast our tracking lighting itself.The set came very fast and very well packaged. So much so that I thought it warranted a picture shoutout. Sometimes you get things from off brands here and it comes in the most questionable of presentation, but this felt professional grade. The lights themselves feel solid too, so far we're very pleased - bright, comfortable, no lag, flickering or buzzing of any kind.

Ive replaced the equivalent of 8 boxes with these lights. They don't have the ugly circle dots but a central yellow light..they are very bright..when on full blast but can dom down to 10%..they are sturdy and no issues snapping them into the fixture. So far so good replaced about half over a year ago and the rest now..none have burned out and can't tell the diff between old and new..

I noticed that the light coming from my Philips halogen bulbs had "yellowed" over time. I use the bulbs to illuminate a picture and need a more "neutral" white for truer colour representation. I wanted the brightness to match a chandelier on the same dimmer circuit and the colour temperature to be harmonious with my other halogen lamps in the room (Reference bulb: Radium Skylight, 12V, 50W). I have included pictures using a Mastery Mart bulb 2700K to light 1/2 of the picture and my reference light the other half (more or less). The light fixture holding the Mastery bulb is on the ceiling and not in frame of the photo. In the second photo I use a Dewenwils 3000K vs my reference light. To my eye the 3000K is too white / gray when compared to the reference light.The Dewenwils is a very fine bulb, especially the 400LM as it illuminates the back of the light fixture very much like a true MR16 bulb, has excellent dimmer performance, great dimmer range, and completely flicker free (on my old school circa 1978 dimmer switch). The Mastery bulb is excellent in most of these categories as well, but boasts lesser wattage and higher life expectancy. But the clincher was the 2700K of the Mastery bulb, it is more harmonious with my existing lighting.

It’s really great better money spent

I love love love the white light, ( my home is no longer dark since I only have 5 windows ) and the fact they do NOT flicker ( tested with an iPhone 14 pro camera underneath them) They are very bright and I find it hurts my eyes if I look at them straight on so I have them angled away so they arent directly facing me when I enter the room in case we ever need them at full brightness. I also love that they are fully dimmable. Bought another package for the second track light.