>>4451916I recommend you learn about lighting before you buy lights idiot. This is an inane and retarded question.
You should be asking
>what am I mainly going to be using the studio for>what are the main subjects of my photographs>how far away do I need the lights to be>what camera am I using>what shutter speed will I mostly be using>what's the max ISO I'm willing to shoot at>how wide am I shooting my lens>what's my sensor sizeIf you figure all of that out you can easily figure out how much light you need, using the formula for luminance dropoff. Obviously you also need to consider whether CRI is important or you're just going to fake the colors in post.