
I figured one of the advantages of LED bulbs is that they should last a lot longer than standard versions of incandescent bulbs. Initially I had high hopes for them as they have good color rendering. However, after about 6 months of gradually replacing various PAR 20 bulbs around the house (into Lightolier fixtures installed by a professional electrician), I'm starting to swap out these LEDs. They appear to have shorter lifespans, and some have noticeably lower light levels than others, even cycling between bright and about three-quarters the light level - and not in a dimmable scheme. Disappointing, will not buy again.

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