There are several threads and discussions covering these things, I would suggest that person join the group and do some searching. If not, they can always start a new thread and I’m sure several people would be willing to offer some info.
The easiest way to say what ideal lighting is by know your photosynthetic photon flux density. Generally measured in umols per second per meter squared. For flowering stage, the ideal ppfd is around 800 umols. You can get there by using any type of light. A lot of the budget fixtures won’t exactly give you the ppf of a light to figure it out. So you’ll see a number like 50 wall Watts per square foot used a lot. That number doesn’t account for very efficient leds, so it’s very possible to meet par requirements with less Watts. Those fixtures will cost quite a bit more per watt though.
For a mh/hps setup you’re looking for something like a 400 watt for 3x3, 600/1000 Watts for 4x4, and a double ended 1000 Watt for 5x5. As stated earlier, those are for ideal par levels.