How many autos with what light

Doing my first indoor grow. I built a 4x4x6 grow box, using fox farm nutrients, some coco coir mixed 50/50 with jungle mix soil from lowes, have 10-23 watt 6500k CFL's for vegging and 10-2700k 40 watts each for flowering. Was wondering if I went with an HID HPS which is the cheapest light out there that will do the job???? (Not even sure which I use for Flowering) Want to grow 8-10 autos at a time......And will a good bathroom ceiling exhaust work good for my air circulation for air going out? This is with CFL as lighting

Can't help you on the CFL front as i dont use them but i'd say with ur grow area and wanting to do 8-10 at a time, minimum lighting required would be 600w

but if you plan on just growing auto's dont bother with HID or MH just go straight for HPS. Ur CFL lighting is enough to get them up and out

ide use a 600w hid in a 4x4 for around 8 ladies