Indoor grow lights

Hello,

I'm useless with grow lights. I'm curious if anyone knows how many pepper seedlings can I feasibly grow until the weather improves in my area under either of these lights:

Mars hydro ts1000

Mars hydro ts600

Vipraspectre p600

Just rough estimate would be helpful. Trying to figure out whether I need the 1000 version or if I can get away with the smaller lights. Thanks