4 pcs 5A DC-DC Adjustable Buck Converter XL4015 4 - 38V to 125 - 36V Step Down Power Supply Voltage Regulator Power Module modname=ckeditor Module Parameters: input voltage: 4V - 38V (Note:input voltage not over 38V), output voltage: 1.25V - 36V DC (continuously adjustable), output current: 0A- 5A (Recommended to use within 4.5A), output power: within 75W. Conversion Efficiency: our 5A DC-DC adjustable buck converter can withstand working temperature range from minus 40 to 85 degrees Celsius and support working frequency of 180KHz, its conversion efficiency is 96% higher (the specific efficiency is related to input, output voltage, current and pressure drop), the load adjustment rate shall not exceed 0.8% and the voltage regulation rate shall not exceed 0.8%. Convenient to Operate: the step-down voltage regulator power module has designed with power indicator, short circuit protections (limit current 8A) and over-temperature protection which means the output will be automatically turned off after over-temperature. Update Version: these DC-DC adjustable buck converters contain reverse voltage protection, over-temperature and short-circuit protection, with both input and output voltage range, output power and efficiency, safer and better than LM2596 version. Mini Size: each regulator power module measures approx: 5.1 x 2.6 x 1.8 cm/ 2.0 x 1.02 x 0.71 inches, please check if the size is suitable for your needs. _x000D_