Features: It is USB step down isolated power supply module.It can be used as ordinary power supply module, charging and LED constant current driver.Simple and efficient, practical. It support reverse connection protective and charging function. Application for power supply; Battery charging; LED drive power; Power conversion; Car power supply and battery; Charging for Mobile phone, MP4; Electric car; Battery car modification. Engineered with reverse polarity protective anddirectional input design, the module ensures safe operation while maintaining isolation between output circuits. Ideal for automotive enthusiasts, DIY electronics hobbyists, and industrial users requiring reliable power conversion for 12V-80V battery systems in vehicles or equipment. Specifications: Component:Metal Input: 12-80V Output: 5V/1A Current: 1A Size:Approx.35x26mm/1.38x1.02inch Package Includes: 1Pc Power Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.