Well, regardless of what you choose, don't go with
Mars Hydro. Almost every other grow light manufacturer makes better quality lights than
Mars Hydro. This is a fact and not an opinion. What
Mars Hydro does well is on the marketing side. What they don't do well is after sales warranty and technical support. I would stay away from all
Mars Hydro products period.
Tents - Buy the largest tent you have space for. It's easy to see all that room in a 3 x 3 when it's empty. The truth is once plants are growing its very very small. You'll struggle to grow quality weed if your space is so packed your plants can't breathe.
Tents vs Closets/Spare rooms. Closets and Spare rooms don't have zippers ... the quality of the zipper on the tent is one of the most important aspects to research prior to buying a tent. With that, I'd also be looking at tent pole diameters and if the corner pieces are plastic or metal. Plastic corners and ultra thin poles = junk. Last, thin tent fabric usually leads to light leaks. If you want your tent to last, don't cut corners here ... A good quality tent will last years. A poor quality tent might not finish your first grow season.
Who makes good grow equipment?
AC Infinity/
HLG/
Spider Farmer/
VivoSun/AgroMax and others ... you'll never find
Mars Hydro on the list of recommended equipment when talking with well seasoned indoor growers.