Features: With a wide input Voltages ranges from 6V to 40V, the Steps-down converter can accurately adjust output Voltages and current. The efficiency can be up to 96%, measured at 20A, converting 24V to 12V. Input and output use high frequency low resistance electrolytic capacitors, low ripples, stable output. Wiring is convenient with these large current 30.0A screw terminals. The Steps Down module have 2 heat sink that could enhances heat dissipation. Specifications: Materials: Aluminum alloys Size: as shown in the picture Input Voltages: 6V to 40V (10V to 40V is suggested) Output Voltages: 1.2V to 36V Output Current: 20A(maximums), 15A(suggested) Efficiency: 95%(24V to 12V, 20A) Output Ripples: ≤50mV Wiring Method: Terminals Short Circuit Protections: Self-recovery(cannot short circuit for long time) Package Includes: 1pc Steps Down Module note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.