Cannabis aint any different then most flowering plants, so a chart for a plant that flowers will be pretty close. PAR stands for the light range absorbed by plants, for veg you want pretty much an equall amount of all light 400-700nm with more blue, and for flowering you would use more of the higher ranges around 550 and up to 700nm. Dont try and break this down to a science you will not recieve the results you want, An hps will do the job much better in my opinion they have the best spectrum u need to flower with mucho lumens.
does this help at all?