take your panle of in your home and find out theres a strip bolted inside of the panel where you screw wires into it there is green "ground and white "neutral" if they arnt in the panle together then why would you cross the wires doesnt make sence i know take you r panle of in you r residentail home and find out if its old that is!!!!!

i said it will be ok if your running "120 volts" dp research before you but in on someones help investagate you will find out the same exact thing im saying

if you wanted to run something like 208, 220, 240, 480 you just simply cant for your ground reasons you can always put 2 or three pole breaker in the panle and make you r own grown like i said and run all new wires how much are you really trying to grow?

120 should be ok if your doing just personal grow you can wire up almost any ballast to 120 volt cant beat me about electric unless your an electricain!!!!!!!!!!!