I have a Smart Solar MPPT 150/100 and was going to add another panel to my array for a total of 1680 watts (4x420) someone pointed out that the controller is only rated for 1450 watts, but my panels (LG Neon R) have a Voc of 48 and on the Controllers data sheet it lists Nominal PV power for 48v at 5800 watts is that correct?