How much yield from this setup?

BTW, my first comment sould work well with fotoperiodic (non autoflowering) plants. Since you grow indoor, you should think to switch to feminized seeds, not autoflowering ones. I know that when you are doing your first grow, using autoflower strains can be more easy, but consider to switch to foto-periodic ones as soon as you get confortable with growing. It's the best way to learn, to train the plants, get more yields and save some money (less ligthing hours). Growing weed is a incredible and satisfactory journey of fails and learning moments that you need to experience! Learn and read all you can if you like to grow this plant, and enjoy every harvest like the first!

210 real watts, you can get around 200gr without problem but in a 60*60 tent you need to maximize the number of colas. Some growers may prefer using some SOG methods, putting the maximum number of plants/clones (aroung x16 2/3L pots). Since you have two plants i think that the best way to obtain similar results is doing some LST with multiple TOPPING/FIMMING cuts to get as many colas as you can fit on the 60*60 tent or try to do some SCROG. But i see a problem here, now it's a little late, but next time and if you want to do the LST method, you sould do some trasplants to get a strong root system and colonize the entire pot (try to get some michrorizes or a root stimulant like root-juice, voodoo juice... etc). With that lamp, and a good planning and trainning method, good nutrients you can get 250/300gr easily. Good luck!

2 plants in a 60x60 tent is fine , if you indeed have a 450W LED (true wattage) you should more then fine depends on how plants develop and if any mistakes ... you should expect decent yield :)

Hello melitensis it depends of the size of your conteners. Bigger conteners means bigger yields. So for a first grow you can have between 40 and 70 if you have no problems. Hope it helps you. Bye

I think u will at least get 2-3 oz of each plant!!!