Features: 【High-Efficiency Conversion】: Utilises efficient voltages conversion technology, achieving conversion efficiencies exceeding 95% to minimise energy loss, making it ideal for solar charging. 【Adjustable Output Voltages】: Supports 36V/48V input to 12V/24V output conversion, allowing users to freely adjust output voltages according to device requirements. 【Powerful Support】:Current up to 20A, capable of meeting powerful load demands, suitable for powering high-energy-consumption equipment. 【MPPT Function】: Incorporates Power Point Tracking (MPPT) technology to optimise solar panel energy output and enhancing overall charging efficiency. 【Constant voltages/Constant Current Charging】: Supports both constant voltages and constant current modes, ensuring safe and effective charging while extending battery life. Specifications: Component: PCB + electronic components Supports 36V/48V input to 12V/24V output conversion Current up to 20A Dimensions: 105x58x28mm/4.13x2.28x1.1in Versions：Standard/ Digital Display Board/ LCD Display Package Includes: 1PC 20A adjustable step-down module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.