As you are having a very good Light Quality, i dont think that you will have insufficient Light. And in my opinion its the Better chice to have maybe not enough light, than to overheat them. In Late stage of flower i wuld give them a little wellness lowering the wattage and the heat. Because they tend to go hermie if they feel stressed. NOrmally you say 100Watt per m2 is enough for a grow... and you got 150, in my eyes enough to end that grow nicelywithout heat/ lightstress the Plant