Well, it might be possible, but it would take a lot of work. First of all, I'm assuming your floodlights are infrared-controlled, because that's what universal remotes usually use. You'd have to find out the frequency that your floodlights use and then duplicate that frequency with the universal remote, which might be aproblem because if you change the frequency then something else might not work (i.e., you might be able to control the floodlights but then you wouldn't be able to use your VCR or something like that).