You would want A metal halide not a high pressure sodium. Slows or home de-pot has 400's for about 25 bucks. Keep it far away.

For 80 clones I would only need a 2 foot 4 tube coolwhite flouro's. Cheap.
Or a 2 foot 4 tube T5 HO, even better but about 160 bucks and your choice of bulbs.