What lasted forever for me…CFLs. downside is they just don’t seem to put out as much light. But I had some in my house 10+ years old. They lasted so long that when one finally burned out and I didn’t have a replacement of the intensity…I was pissed to learn they don’t even make them anymore. I’m not a fan of LEDs because some of the cheaper ones are like mini strobe lights and really big my eyes. I had to go through like $60 work of LEDs to find a set I actually liked