Two 250 Watt Panels in Series will produce 35 amps charging during peak sun using a Victron 100/50 SmartSolar Charge controller.  The panels can be wired in parallel but they must be individually fused using MC4 fuses before the combiner which are included in this kit!

It is best to wire these in series to take advantage of low light conditions but you should avoid shading a portion of the panels as that will affect the whole string!