Meh...barely OK

They dim...kind of. They dim down to a semi bright level then do nothing as the halogen bulbs dim down to a nice ambient glow. II should have checked the dimensions. These bulbs are slightly taller/longer than a halogen MR16 bulb. They won't fit fixtures with glass covers over the bulbs. Flicker. I put the bulbs in a fixture connected to a 120 circuit in my garage and they all flickered. I can't endorse this product. It works, I'm willing to think maybe I have some problems on my end, but in general I'm unable to use this bulb. I originally bought 18 bulbs, I'm returning 12 of them because they just don't meet my needs.

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