So after weeks of studying,worrying,and shopping around I am getting my first set-up.I have a 4x4 grow tent with 4 inch vent ports.I am getting a 4 inch vortex fan and 4 inch phresh filter.A 400 watt mh for veg and hps for flowering.The question I have is ballast in reflector or out.The price is like 180 for ballast in and they want $120 for yield master 2 shield and $141 for ballast,why not get the built in for $180 total,am I correct in this.Also,how dangerous is it to buy seeds online,will they come to your house if they discover you ordered seeds and customs got them,where is best place to order from for cheapest.Many more questions to come,and I have already learned alot just reading threads on here,thank you to all who pave the road for us