is it the same burple you posted ? if so it's literally a dinosaur. might be a new dinosaur, but it's still the same old tech lol. and yes they were stupid hot for what you got, and underpowered. you can get loads more par for the same 320w today.
there are 4 plant 4x4s that run on 320w start to finish on newer rigs now. though i prefer at least 450w. have a look at some of the journals. watt/sqft is falling rapidly with the same or improved ppfd, as the tech and efficiency gain.
edit : a newer 450w rig in the right spec now runs about the same ppfd as my 600w.
there are 4 plant 4x4s that run on 320w start to finish on newer rigs now. though i prefer at least 450w. have a look at some of the journals. watt/sqft is falling rapidly with the same or improved ppfd, as the tech and efficiency gain.
edit : a newer 450w rig in the right spec now runs about the same ppfd as my 600w.