Originally Posted by JeffersonStateGrower
Hey, each 600 watt ballast will require 5 amps each for a total of 10 amps, and I have never seen a home circuit less than 15 amps. If it is the breaker tripping, than either the breaker is faulty, there is more of a load on that circuit than just the ballasts, or one or both of the ballasts are faulty. Another possibility could be that it is a GFI breaker, and they can be very touchy (like if you are holding a glass of water and look at the breaker it will flip). One quick way to find out would be to run a heavy guage extention cord (12ga recommended) from another circuit and see if that circuit's breaker trips, if it does than you have a ballast issue...if not than replace the breaker. Hope this helps :thumbsup:
JSG.