I HAVE USED CFL'S IN PAST GROWS AND I AM HOPING THAT LED'S WILL GIVE A BETTER YIELD, BUT WHAT KIND OF WATTAGE DO I NEED TOTAL FOR THE WHOLE PROCESS? I'M THINKING ABOUT GETTING A 300 WATT SYSTEM OR SHOULD I GET THE 500 WATT SYSTEM? THIS IS MY DILEMMA. CAN SOMEONE HELP ME OUT WITH THIS?