Feature: 1. MULTI PHASE SYNCHRONOUS RECTIFICATION: The solar controller is a fully digital intelligent controller with rapid response, high reliability, multi phase synchronous rectification technology and high conversion efficiency. 2. MPPT TECHNOLOGY: The solar controller's MPPT technology realizes the maximum energy tracking of solar panels. Can quickly and accurately tracking the maximum power point of solar panels in any environment. 3. MULTIPLE CHARGING MODES: The charging modes of the solar controller are PV separate charging backup battery, generator separate charging backup battery, etc. Backup battery supports a variety of batteries, such as sealed battery, gel battery, open battery, lithium battery and custom battery. 4. TEMPERATURE COMPENSATION: The solar charge controller has a backup battery charging voltage line loss compensation function to make the battery charging voltage control more accurate, with battery temperature sampling function, acid battery support temperature compensation. 5. PARAMETER MONITORING: Solar controller can monitor and set parameters through phone APP and PC monitoring and setting software, aluminum alloy heat sink and high temperature derating treatment, suitable for vehicle or ship system or dual battery system. Specification: Item Type: Solar Charge Controller Material: Aluminum Alloy Battery Voltage: 12V Generator (Starter Battery) System Voltage: 12V 24V Current: 30A Maximum Solar Power: 400W Maximum Working Voltage Of Solar Cell Module: 17V-36V Maximum Solar Open Circuit Voltage: 50V Maximum PV Input Current: 27A Maximum Generator Input Current: 35A Communication Mode: TTL Operating Temperature: -35 To 65 Altitude: 3000m. Package List: 1 x Solar Charge Controller6 x Terminal1 x Red Communication Connection Cable1 x Black Communication Connection Cable1 x Instruction Manual