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I received and installed this on Jan 8, 2021. It stopped working on Feb 17. The bulb is should last a few years, not 1 month. It is in a bathroom with a window, so we only use the light at night, it is not overused. Incredibly disappointed that I have to go through finding a longer lasting bulb after just 1 month. The last replacement bulb (from a different manufacturer) lasted 2 years, but that bulb is no longer available. The original that came with my fixture lasted 5 years or so.
After reviewing many resources, I found out TC55W is no longer available. I bought this and it was exactly what I needed to replace a hallway light fixture. Only installed a few weeks so not sure how long it will last. Last bulb lasted over 13 years.