How many LEC 315s??

Fairly new to the indoor game but my buddy down south told me about these new Light emitting Ceramic lights. I am planning on running a 5x10x6 grow tent and I am trying to figure out how many 315s (which are equivalent to a 600w) I should run. Or they make a 630 (1000w) as well, which is also something I am considering. So basically how many of either light would be sufficient enough for the tent and what is an estimated yield. Being that I am fairly new to the indo game and these lights are fairly new to the market I am a little lost. Any input is much appreciated thank you.

They are for a 3x3 space= 9 sq ft.

You have 50 square ft. So 5 of them i think?

But you have a 5x10 space so fitting a 3x3 fixture in there would be tricky

I would find something that covers a 5x5 space and you would only need two fixtures.