HLG100's in 4x4

I'm thinking about putting 2 HLG100's in a 4x4 tent. Would this be sufficient to produce above average yields or should I go with the 135's? I'm new to Quantum boards so forgive me.

you want 600w in a 4x4

4 of the 135s would be okay for a start. 6 would be better.

2x QB320 kit would be ideal.