Wel not sure about intensity, I have 2x 150W HQI bulbs, 2x 80W HOT5, and 1 TMC Grobeam 1500 (and i add a second tomorrow). One of the reasons i do the planttest with 12 or so species is to fnd out which ones will work in my setup, more then saying : i want this or this plant. If i find a few that like the conditions of my tank, then i will weed out the rest and start multiplying the ones that work and junglescape with those.
Also i have to find the balance between healthy growth and swimming in the tank each week to prune😉