Further information for TP-Link VIGI PS90(UN)
VIGI Solar System Controller-Without Solar Panel Spec:Up to 3 × 31.2Ah/3*12VDC Output Battery, More than 500 cycles Charging Condition: -20?~45?(With intelligent auxiliary heat) Discharging Condition: -30?~60? (With intelligent auxiliary heat) 1*10/100Mbps RJ45