Features: 1. brand new and high quality. 2. This product can convert 36V-72V car DC voltage to the output of 12V 10A. 3. It can be used to supply power for 12V electronic devices. 4. Compact size and light weight, easy to install. 5. Stable performance, long service life. Specification: Type: DC-DC power supply Modulation method: Pulse frequency modulation (PFM) Input voltage: 36-72V Output voltage: 12 V Output current: 10A Work efficiency: 92% Output noise: 1db Output voltage accuracy: 3% Voltage regulation rate: 2% Load adjustment rate: 4% Working temperature: -45~80°C Package weight: Approx. 110g/3.9oz Red wire: Input + Black wire: Input - Yellow wire: Output + Blue wire: Output - Package List: 1 * DC Converter