Recently I just found out the ies profiles only work for spot lights and that they are not accurate yet for rectangular or linear lights . Also they look way too bright using the ones intensity because of D5 lighting system . Until the lighting system is accurate based off ies files in D5, id recommend D5 add a quick fix of adjusting intensity of all artificial lights per scene . Let’s say, there was an effect button that lets you automatically boost or reduce the lights intensity per scene . That way you can reduce them during day scenes and boost them at night scenes .