Well just thought id update this.
Bought two Corsair ML120 (White LED ones as I thought they looked nice). 12v 0.3a and what do you know, its pulling the same wattage at the wall as it did before so total waste of time
They are running at the same rpm as the old ones and resulting in roughly the same temperature on the gui.
Now the red light is flashing and cant remember if it should be flashing green when mining. It still works and registers on the pool so ill leave it for a day and see what happens to the wattage level as its only been running for 25mins.