She has been shown to be able to take out all electricity and technology for miles for well over 25 minutes. She is even able to shut down all of the tech in the JSA HQ and all of Dr. Mid-Nite and Mr. Terrific's tech I mean all there tech even Terrific Balls and Mid-Nite's visor do you think she could shut down Iron Man and the FF building?

Iron man is supposedly EMP proof, but then again so is Mr. Terrific's T-spheres...

I was under the impression that she doesn't exactly short out the objects so much as leech them and augments her power as well. if that is the case then iron man would be useless at close to mid range because she would drain all of his reserves before he had time to adjust.  

Old thread, but a good one. 
 
I'm not sure on this TBH