solar PV system : 1,TUV ,CE, RoHS ,ISO900. 2,1 ... polyModleLS50-12MOpen Circuit Voltage21.24VShort Circuit Current3.20AMaximum Power Voltage17.5VMaximum Power Current2.86Aquantity1PCSpeak power 18V/50WSolar Module Dimension808*535*30MMControllerRating Discharge ... 8SafeguardIP20Discharge Resuming Voltage(V)≥12.4Over DischargeShut off≤11.4Equalized Charge (V) ≤14.4Resume≥12.4High voltage protection(V)≥17 ...