VEVOR 50A MPPT Solar Charge Controller, 12V / 24V Auto DC Input, Solar Panel Regulator Charger with Bluetooth Module, 98% Charging Efficiency for Sealed(AGM), Gel, Flooded and Lithium Battery Charging50A MPPT Solar Charge ControllerVersatile CompatibilityEasy to Use & ControlHigh StabilityComprehensive Protection FunctionsConvenient Remote MonitoringPrimary Material: ABS+PC,Package Dimensions: 240 x 190 x 130 mm/9.45 x 7.48 x 5.1 inches,Solar Panel Open-Circuit Voltage: Max. 100V DC,Operating Temperature Range: -20°C to 50°C/-4°F to 122°F,Applicable Battery Voltage(DC): 12V/24V Auto,Product Dimensions: 183 x 125 x 70 mm/7.2 x 4.92 x 2.76 inches,Rated Input Power: 12V/660W; 24V/1320W,MPPT Control Efficiency: ≥98%,Item Model Number: MC2450N10-B,External Communication: Built-in Bluetooth Module, Controlled via Neutral APP,Product Net Weight: 1.33 kg/2.93 lbs,External Temperature Sensor: Supported,Charging Modes: Fast Charge, Balance, Float,Charging Current(DC): Max. 50A