I hope you aren't expecting the CFLs to be super long life. It may work out that way in table lamps where the CFLs are upright and vertical. Inside the base is a little power supply circuit, not unlike the power supply in your computer (or the power adapter for your laptop). Its heat dissipation is OK oriented vertically, but much less so in other orientations. In electronics, heat is not your friend. For the technoid life forms here, if any, CFLs also are not power-factor corrected. The meaning of this is a bit technical, but it basically means that CFLs cause losses in the grid and your wiring that make them less efficient than advertised.