If I'm doing the math correctly, I think the fans too small. 175m3/hr with a 600 watt light in a completely enclosed grow space that size!? I think theyve cut some corners with that fan and your temps are going to soar in the spring & summer because of it. Otherwise the setup looks pretty nice! its not too pricey(considering you do get a 600watt hps and fan) you could build something better yourself for far less money but then you still have to purchase the light and fan etc. They also need some form of air circulation in there. Growing is one thing however growing to maximum potential is another altogether. Theyve def cut some corners there in my personal opinion. BUT dont sweat it there are always ways of getting around things like this. Nothing Ive ever purchased to grow mj was left unchanged and you can do the same. Make it mj worthy and you'll do fine.
