Do a little more homework. All of this information is readily available.

There are different kinds of 600w ballasts (dimmable, dual, single, etc.) and each will draw different amps. You can calculate total amps or simply look at the technical details on just about any website that sells them. I doubt any of them pull more than 2 amps.

Why 2 fans? You will only need one properly sized fan unless you are cooling the lights in a closed loop separate from the grow exhaust.

Do you live in a hot climate? If you get the exhaust right you may not need an AC.

35 amps will be more than sufficient.
bigsby Reviewed by bigsby on . POWER Here's what I want to do ...... 2 x 600w lumatek ballasts...not sure of amp draw ???? 2 x stealth f6 6" inline fans... 1 amp/fan 3 x 6 bulb 2' florescent...mine are made by powertrip...not sure of power draw??? misc small fans total of maybe 7...not sure of power draw??? Small window a/c....not sure on what I could use in this room. Room is 11 x 9. Here's whats available.... one 20 amp and one 15 amp fuse. Rating: 5