MPPT controller model: HHJ-60A Rated current: 60A Charging mode: MPPT automatic maximum power point tracking Charging method: three stages: constant current (MPPT), constant voltage, floating charge System type: DC12V/24V/36V/48V automatic identification System identification voltage: DC9V-DC15V (12V system), DC18V-DC29V (24V system), DC30VDC39V (36V system), DC40V-DC60V (48V system) Soft start time: =1S (12V/24V/36V/48V system) Dynamic response recovery time: 100us (12V/24V/36V/48V system) Machine efficiency: =98.1% (12V/24V/36V/48V system) Photovoltaic module utilization rate: =99% (12V/24V/36V/48V system) MPPT working voltage and range: PV open-circuit voltage recommended input voltage: DC20V-DC80V (12V system), PV open-circuit voltage recommended input voltage: DC37V-DC105V (24V system), PV open-circuit voltage recommended input voltage: DC50V-DC160V (36V system), PV open circuit voltage input voltage recommended value: DC72V-DC160V (48V system) Maximum limit input voltage (VOC): DC150V (12V/24V/36V/48V system) Maximum solar panel input power: 720W (12V system), 1440W (24V system), 2100W (36V system), 2800W (48V system). Also, the each additional item means.The the same color and size. Transit time may be a little delayed because of the. If you have any questions. This item is in the category "Business, Office & Industrial\Electrical Equipment & Supplies\Power Supplies\Switching Mode Power Supplies". The seller is "2011-fashionstyle" and is located in this country: CN. This item can be shipped worldwide.