Does it make sense to replace gx24q-3 CFLs with e26 LEDs?
Most of the return on investment (ROI) evaluations I have completed have shown a positive ROI within 2 years 2 months for very expensive fixtures. When only changing the lamp the return is much quicker just a few months in some cases. But this is when relamping is needed. To go in and swap good functional lamps still has a positive ROI due to reduced maintenance and lower power consumption but wholesale swap of CFL to LED is not "green" due to the good material that is being disgarded. If new to you,,, not brand new it could be worth it as CFL life curves show less lumens as they age. If you are going to be in your home for at least 2 years it makes financial sence to make the change and after 2 years not having to replace the lamps, instant on at full brightness are additional reasons to change.