About this item 72V 60V 48V volt voltage to 12V Step Down Voltage Reducer regulator 240W 20A for Scooters & Bicycles Golf cart Working power 240W; Max working current 20 amp. Made of Aluminum Alloy, laser print on the surface Important wiring instruction: the lock wire (thin red wire) is to be connected to the lock switch. If you don’t have a lock switch, merge the two red wire together and connect both to positive input end. Internal shot circuit protection, over-voltage protection, thermal-load protection Converts voltage for scooters, bicycles, vacuum lamp, electric snail horn, golf carts, forklifts, buses Size:20A 240W Specification Input voltage: 48V,60V,72V (48V – 72V) rated voltage Output Current and voltage: 20A max, 12V Working Power: 240W Internal short circuit, current limiting Internal over-voltage protection Internal thermal-load protection Operating temperature: -20 ??c to +60 ??c (Industrial grade), -40 ??c to 80 ??c (limit) CE/RoHS certifications, 1-year warranty, lifetime up to 100,000 hours Efficiency up to 92% Wiring Instruction Red: Input line Yellow: Output Line Black: Earth Wire Applicable devices Scooter Bicycle Vacuum lamp Electric snail horn Golf Carts Forklifts Buses Loaders Logging Vehicles Wind Power System Solar Power System Electromotor Telecommunications Boat and Yacht Solar panel LED lights Generator Set-top boxes CPE equipment LCD displays Peripheral Battery chargers Industrial and car audio power supplies