I'm a long time lurker on these forums, and finally made an account to post a question. My house came with ugly CFL bulbs, which I am replacing with LEDs. I notice a huge difference in brightness, and I'm just wondering, in general, is there something different about lumen ratings on CFL vs LED? For example, the old CFL is rated at 26W, 1800 lumens, 4100K. The new LED is rated at 10W, 800 lumens, 2700K. The LED is roughly twice the brightness, as measured by my Sekonic meter. The house was built 6 years ago, so that's how old the CFLs are. These LEDs are about 1 year old. I suppose they both dim slightly with age but this seems pretty drastic.