DC Buck Converter, Yeeco 6-55V 24V 36V 48V to 0-50V 5V 12V Numerical Control DC-DC Voltage Regulator Power Stabilizer Multimeter 250W 5A Adjustable Voltage Step Down Power Supply with Display and Knob Voltage buck converter input 6-55V; 250W 5A Voltage converter output 0-50V, large adjustable range for various electronics; Power supply reducer with anti-reverse diode and short circuit protection, protect the converter; High efficient step down voltage regulator, over 95% conversion efficiency and low heat generated Volt stabilizer regulation with cooling fan, cool down fast and allow to work in lower temperature, work much more stable; Step down power supply with swtich and knob, convenient to adjust data Adjustable digital DC multimeter, easily adjust voltage and amperage by pressing U/I, ON/OFF, SW and S/R buttons; Buck regulator module with connection ports and two alligator clips, convenient to connect with wire and need no tools High accuracy DC-DC voltmeter ammeter display, bright 1.8 colorful LED display and 4 numerical digit display much more accurately; Regulator can also record data, can record 11 groups of data at most Numerical control voltage regulator versatile to charge your electronics and lithium battery with suitable voltage and amperage, drive high-power LED lights; Buck voltage reducer stabilizer also ideal to DIY high-power power bank, solar resource voltage stabilizer and more