YueYueZou&reg; 30 Amp PMW Solar Charge Controller Intelligent Display 30 x 50mm LCD display screen, can show the status of charging and discharging in time With indicator light of charging and discharge Excellent heat balance design and natural air cooling,4-stage charge period management (EQU, Bulk, ABS. Float) Sophisticated electric protection production, including over-current protection, load short-circuit protection and low-voltage protection Comprehensive and reliable load control mode can identify the day and night Well-designed charge loop can effectively improve the efficiency of charge and discharge Mutiple electric protection: over-current and short-circuit protection, inverse connection protection, low voltage and overcharge protection