Each product has a unique Manufacturing Part Number label on the inner package, including Part Number, Model Number and inspection date for quality assurance. If you have any questions about the item, provide the Manufacturing Part Number for checking. 15A Synchronous Rectifier Buck, Non-isolated Buck Module with synchronous rectification. Input voltage: 4-32V (limit 36V), Output voltage: 1.2-32V continuously adjustable, Minimum voltage difference between input and output: 1V. Output current: 0-15A (long-term natural heat dissipation within 10A, temperature rise does not exceed 60 degrees; peak value up to 20A, derate in high ambient temperature). Suitable for college students, engineers, technicians, factory DIY, electronic enthusiasts and other personnel. Specifications: Operating temperature: -40-85 Degree, Working frequency: 150KHz, Conversion efficiency: up to 98%, Wiring method: terminal block (without welding), Material: PCB, Color: as shown, Size: 60x50x22mm/2.36x1.97x0.87inch (LxWxH), Weight: 146g. Package include: 2 x Buck Converter DC4-32V to 1.2-32V 15A