Yes they will go into a normal light socket, Regular CFLs have a built in ballast and ignitor... only PLC 2pin or 4 pin CFL bulbs require an ignitor which is built into the reflector hood.
My suggestion is to use regular cfls to start veg in whatever light sockets you can find...i prefer to use the clip on type so i can move them as required...
at a later date invest in a CFL floodlight for the canopy once you get to flowering stage....I've got several CFL floodlights ordered , cuz i'm amazed at how well theyve worked on my LR2s