My experience with LED bulbs is that they get dimmer over time. But Onebyone says they have been on 24/7 for six years; then I remembered that the bulbs I had were only in flashlights. Maybe they work better on a socket. I'll have to try.

I have them in my celling fan and three light pole lamp over my sewing area. They are wonderful I don't know how I ever got along without them. I am replacing all my bulbs with them as the old ones burn out.

I changed out the bathroom vanity lights and can't believe how many wrinkles I now have! I wouldn't want to change back. Because of the low heat factor I could put in 100w to replace 60w and it really made a difference.