Features: 20A 300W DC Step-Down Converter. Input Voltage: 6V to 40V DC (10V to 40V is suggested), Output Voltage: 1.2V to 36V DC, Output Current: 20A (max.), 15A High frequency, low resistance, low wave and stable output capacitor are used for input and output. Widely used for DIY stabilized voltage power supply, LED car display, mobile power supply, industrial appliances, LED driver, monitor, solar energy, fans, motor, etc. The buck module has 2 heat sinks which could improve heat dissipation. When there is a big difference between input and output voltage, please reduce the power and current. Features: Efficiency: 95% (24V to 12V, 20A) Output ripple: ≤50mV Wiring method: Terminal Short circuit protection: self-recovery (cannot short circuit for a long time) Size: 60 x 53 x 27 mm Package size: 6x6x6cm Package weight: 83g Packing list: 1 x module