ac500 solar panels

i finally have a ac500 comming, and im trying to figure out a good solar setup

i have found these

Max. Power at STC (Pmpp/W) 405
Output Tolerance (W) 0-+5
Max. Power Voltage (Vmp/V) 31.35
Max. Power Current (Imp/A) 12.92
Open Circuit Voltage (Voc/V) 36.89
Short Circuit Current (Isc/A) 13.74
Module Efficiency (%) 20.74

looks like 2x 4 in seriel would be
watt 1620
voc 147,56
Isc/a 13,74

sounds good to me… but am i right ?, or anyone know of other good panels

regards nightlurker