Would ; 2 540w LED Supernova and 1 270w LED Supernova be an efficient amount of light for this 30 plant Aeroponic system. AeroFlo 30 - Aeroponics Grow System
The short answer is, um, yes your plants will grow. What is the objective of your grow? Heavy yield, large buds, quick veg-bloom? I'm not a big fan of LEDs, because of what I've read about the slow growth and light penetration issues. But obviously the choice is yours, but it seems to me that if it's good results your after, why don't you just go with HID lighting? Sorry if this isn't what you want to hear, but this is what came to mind.
Well it emits lower heat and saves alot on electrical bills and I'm looking for good yields only but this is just all hypothetically speaking