Old Sylvania CFL Adapter and Newer Sylvania Quad Lamp
Here's a older GTE Sylvania 5-7-9W CFL adapter paired with a newer Sylvania 9W quad lamp, The adapter has a rotatable base feature to make fit easier into tight spots.
These circlines adapters only made in the US as in Europe Osram and another companies makes circlines with the adapter built into the lamp and electronically ballasted ("Self ballasted" circline lamps) like Osram Circolux which is Self Ballasted HO T5 circline. In Israel we have either not the adapters and not the SB circlines. I think because most of the stand lamps in Israel are spots (Rxx reflector lamps as a default) and not decorative like in the US. Also these circline adapters is ONLY for T12 circlines which probably banned (Or at least not imported today) in Israel as i didn't found now any T12 circlines for sale in ACE for example. Only in T9 and in T5.