Features: Safe Design: Equipped with input reverse protections for secure operate. Two Output Option: Offer both 5V/2A and 12V/2A output, catering to diverse device needs. Wide Input voltages Ranges: Versatile 9V to 90V input, suitable for various power sources. High Efficiency: Boasts a 95% efficiency rate, ensuring minimal power loss during conversion. It can be used for 12V-90V car power supply, battery, mobile phone, MP3, MP4. Safe, fast and convenient, and can be used for electric vehicles, battery car modification. Specifications: Component: PCB Size: about 38x22x14mm/1.5x0.87x0.55inch Output: 5V/2A, 12V/2A (optional) Input voltages: 9-90V Efficiency: 95% Package Includes: 1pc Step Down Module note: 1. Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2. The minimum voltages difference between input and output voltages needs to be greater than 4V; The minimum input voltages at 12V output is 16V.