Power Pack output

Hi,
I'm new to the studio, and I just got several novatron heads from a friend, I'm now looking for a power source.

Now to the question: when a power pack says it can output 400w/s across 4 heads, does that mean that each light gets 400w/s, or they each get their share of 400w/s i.e. each one gets 100 w/s?

Thanks,
Josh

I don't know about Novatron but I think the norm is to list the total WS. How it's divided depends on the pack.

My pack can put 2400 on one head. Or spread it over six. But it's still a 2400ws pack.