As a postie, all the free bulbs we have delivered have been a pain in the butt - just when you think you have got rid of them all, another company sends them out.
Trouble is, they have sent out just the weaker ones, and people will probably think they are rubbish. I got mine for the whole house in a BOGOF at Morrisons, and I got the higher wattage ones. I have no complaints about the brightness of them, nor about the money I save in leccy - as I am on a PYAG meter, I noticed the difference straight away.