Feature:
1. Overloading protection(automatic reset)
2. Short circuit protection9automatic reset)
3. Reverse current protection
4. Reverse polarity protection(Automatic reset)
5. Lighting protection
6. Over discharge protection
7. Overcharge protection
8. The thermal compensation

Model	Rated voltage	Rated current of charging	Rated current of discharging	PV open circuit voltage	MPPT voltage range	Low voltage disconnection	Low voltage reconnection	Full   charge cut	Float charge voltage	temperature compensation	Work Temperature
MPPT-10	12V/24V	10A	10A	20V~23V/40V~46V	12V~23V/24V~46V	10.7V/21.4V	12.6V/25.2V	13.7V/27.4V	13.8V~14.4V/ 27.6V`28.8V	-4mV/Cell/(25º C)	-20º C~60º C
MPPT-20	12V/24V	20A	20A	20V~23V/40V~46V	12V~23V/24V~46V	10.7V/21.4V	12.6V/25.2V	13.7V/27.4V	13.8V~14.4V/ 27.6V`28.8V	-4mV/Cell/(25º C)	-20º C~60º C
MPPT-30 LCD Display	24V	30A	30A	40V~46V	24V~46V	21.4V	25.2V	27.4V	27.6V`28.8V	-4mV/Cell/(25º C)	-20º C~60º C
MPPT-30 LCD Display	48V	20A	20A	80V~92V	48V~92V	42.8V	50.4V	54.8V	55.2V~57.6V	-4mV/Cell/(25º C)	-20º C~60º C