My longest lasting lamp in my house is Sylvania CF23EL/Micro/865. The specs are 23w, 1600lumen, 6500k. Obtained as a used lamp in 2016 from a garage sale, the

was self ballasted on its electronic ballast for 5 years at 6 hours per day on average in my ceiling fan, then the original ballast died. After that, I removed that ballast and bypassed it. The lamp was then powered by a 25w, 4 lamp t8 instant-start

at which I ran from one tap of the wires in a table lamp for another 2 years at 7 hours per day. Then in 2023 January, I retired the lamp in still working condition. Probably 16,000 hours of this lamp was used but is actually getting a bit dim as it is near EOL because it seems significantly dimmer than a new 23w CFL. It is also giving off a burnt plastic smell when it is on for hours. I still have a large stash of assorted CFLs and continue to get more for free at the Lowes recycling.