These reducer converters are high-reliability power . They feature wide input voltage, low power consumption, high efficiency, and high reliability. They can work safely and reliably in the -40C~80C range. Widely used for golf carts, motors, speakers, GPS, LED car display screens, air-conditioners, electric fans, solar energy, photo- power, DVD, industrialequipment, etc.Synchronous Rectification Technology: The synchronous rectifier circuit use MOSFET instead of a rectifier diode to greatly reduce the loss of the rectifier and improve the converter efficiency, Maximum Efficiency: equal 95%.Intelligent Protection: Assembled with a smart chip, has features of Over-current \/Over-load \/Low-load \/Short-circuit \/Over-heat intelligent protection.IP68 Waterproof Module: Compact aluminum shell with epoxy potting is IP68 waterproof, anti-shock, damp-proof, anti-dust protection, and better heat dissipation, adapts to a of harsh environments and extends the service life. Process: FR-4 multilayer lines, resistors, capacitors, and switch MOS tubes 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 the converter's inside temp is over 113, converter will protect itself when the inside temp is over 185.Input Voltage: DC 36V\/48VOutput Voltage: DC 12V (FIXED OUTPUT)Output Current: 20A(MAX)Output Rated Power: 240W(MAX)Efficiency: equal 95%Ripple Wave: 50MvStarting Delay time: less than equal 2SEnclosures: IP68Operating Temperature:-40 ~ 80Size:2.91x2.91x1.26 inchColour:silverMaterial:MetalPackage Contents:2 x Voltage Reducer 36V\/48V to 12V 20A 240WOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.