Continuing the discussion from Another newbie nute burn question:
@Donaldj ty
@GreenDreamer post your questions here for everyone so we can assist you can use this until you can start you own
Feel free to edit title was a rushed what do I name this moment 
hi i am thinling of using two 600 watt in a two metre square grow tent with 4 plants is this enough light also when you harvest and say have a bud that weighs 50 grams what will it weigh approx when dried