These dc'buck boost converters'are'excellent'power transformers. They feature wide input voltage, low power consumption, high efficiency,'great'reliability.'They'can work safely and reliable in -40'C~80'C range.'Widely used to golf cart, motor, speaker, GPS, LED car display screen, air-conditioner, electric fan, solar energy, photo-voltaic power, DVD, industrial equipment ect.'Synchronous Rectification TechnologyThe synchronous rectifier circuit use MOSFET instead of rectifier diode to greatly reduce the loss of the rectifier and improve the converter efficiency,'Maximum Efficiency:?95%'Intelligent ProtectionAssembled with smart chip--has features of Over-current /Over-load /Low-load /Short-circuit /Over-heat intelligent protection100% Waterproof ModuleCompact aluminium shell with epoxy potting'is'IP68 waterproof,'anti-shock, damp-proof ,'anti-dust protection'and better heat dissipation, adapt to a variety of harsh environment and'extend service lifeSMT ProcessFR-4 multilayer lines, resistors, capacitors and switch MOS tube are SMD components with high integration, high reliability, high stabilityEasy Installation---Positive and negative wires can't be reversed connectionNotes: It's normal that the case is hot when converter inside temp is over 113?, converter will protect itself when inside temp is over 185?.Specification:Input Voltage: 48V nominal Input range: 40V to 60V' Input Current: 10A (max) No-load input current: ?10mA' Output Voltage: DC 12V '2% Output Current: 5A' Ripple Wave: 50MvStarting Delay time: ? 2S'Maximum Efficiency: ?95%Non-isolated'Module' Size: 64mm x55mm x 20mm' Net Weight: 110g / 3.8oz Package include: 1x Voltage Reducer Converter 48V to 12V 5A 60W