Check the listing for details. SRNE ML2440 MPPT solar charge controller (12V-24V, 40A). Condition: New. Listed at 130.00 USD. SRNE MPPT Solar Charge Controller(12V-24V, 40A) For off-grid ApplicationsCan be connected to both PV, battery and load.Multiple load operating modes to meet diverse needs. User-friendlyEasy to install and simple to use.Natural cooling, absolutely quiet. SafetyComplete charge and discharge protection mechanism.High quality components for stable operation. All-in-one:Supports multiple battery types.Highly integrated, helps you save space and time. Efficient:MPPT with up to 99.9% efficiency.Support solar panel, 2 in series, more in parallel. Intelligent:Supports RS232, RS485 and (RV-C protocols).Supports bluetooth and mobile app. Specifications: PV INPUT:-Max voltage of Open Circuit: 100VDC-MPPT Voltage Range: Battery Voltage+2V ~ 75V-Max PV Input Power: 12V=550w and 24V=1,110w BATTERY:-Battery type: Lead-acid, Li-Ion and custom setting-Rated battery voltage: 12/24VDC-Battery voltage range: 9-35VDC-Rated charging current: 40A-MPPT charging mode: Buck LOAD:-Load type: Resistive load, capacitive load and inductive mode-Rated load voltage: Equal to battery voltage 12/24V-Rated load current: 20A-Load working mode: Light control, Light control + Time control, Manual control (default), debugging mode, normal open EFFICIENCY:-MPPT tracking efficiency: >99%-Max charging conversion efficiency: ≤98% ACCESSORIES:-Standard: BTS temp sensors/-C, BTS temp sensors, RS485 8-pole communication cable-Optional: RM-5 display, BT-1 bluetooth module, USB to RS232 connection cable, GP-2 IoT module, 6 pole communication cable GENERAL:-Communication: RS232/-C, RS485-Weight: 4.41LBS (2kG)-Dimensions: 9.4in * 6.8in * 2.9in (238mm*173mm*72.5mm)-Protection degree: IP32-Operation temp range: -31*F ~ 113*F (-35*C ~ 45*C)