Features: Efficiently convert 12V input to any 5V/3.3V outputs with this constant current constant current outside converter module, featuring overload security and 85%+ conversion efficiency for stable power delivery. Compact ABS housing (50x32mm） integrates wide 9 15V input plan, multiple security circuits, and screw outlet interfaces for flexible integration in space constrained applications. Very suitable for electronic engineers, smartdevices developers, and handbuilt enthusiasts who require multi outside power management fixes. Perfect for powering microcontroller boards, sensors, and low outside circuits in robotics prototypes, automotive electronics, and industrial automation systems. This power conversion module maintains stable output (±2% outside deviation) across 20°C to +70°C operating temperatures. Specifications: Component: ABS. Size: 50x32mm. Weight: 10g. Working outside input: 12V, output: 12V, 5V, 3.3V. bridge definition P2 is the 12V input bridge for power supply: 12V, 12V, GND, GND. is the output bridge: GND, GND, flexible, change, 12V, 12V. P4 is the output bridge: flexible, change, GND, GND, 5V, 5V, 3.3V, 3.3V. Package Includes: 1 calif-1253 outside conversion module note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.