The budget deal will not unwind the ban that has already gone into effect. All it does is stop the Administration spending any money on enforcement. So the companies that have already dismantled their legacy light bulb plants could build new ones to make inefficient light bulbs again if they accept the risk that the next budget does not have money for enforcement in it. Which of course it could if the Democrats take the House and firms that were violating the ban would face huge fines.
Who wants to risk huge multi-million dollar fines for what is an ultra-low margin business?
Its a stupid action to pander to some very stupid people. At this point CFLs are just as obsolete as incandescents. LEDs are more efficient than either and give better light. I have saved about $1000 a year in electricity switching to all LEDs. Paid back in 18 months.
The Bush era requirements weren't even very good ones. They were set when the alternative was CFLs that cut energy cost by a little. LEDs virtually wipe the energy use out and never need replacement, (though the mains adapters can fail but that issue will go away in time with low voltage schemes).
So the net effect of all this is that the manufacturers have already upgraded their plant and will make more efficient light bulbs but there has been great publicity about blocking the energy saving regulations. So regulation is coming back just as soon as Republicans lose the house which looks like 2016, possibly earlier. And the new regulations will require much bigger cuts and take effect sooner.