Number of plants in a tent

[Bulldog88wr]

1st time grow and I was wondering if I should start with a lot of little plants or just have a couple of them to grow them big.
I have a 5x10 tent and 2 spiderfarmer sf4000.

 

[growsince79]

you might be able to cover 4 x 4 with that light. 4 fairly small plants or 2 big.

 

[Bulldog88wr]

What if I threw them on a 6.6 ft light rail with a 3 foot extension?