Description This is a professional and practical DC to DC 4.5-30V to 0.8-30V 12A buck voltage converter module, constructed with a durable hard PCB board and metal materials. Designed for reliable voltage regulation, it is suitable for various applications such as battery systems, power transformers, and DIY adjustable voltage regulators. Features - Color: As shown in the pictures - Material: Durable hard PCB board and metal - Dimensions: Approximately 60 x 52 x 20mm - Type: DC to DC 4.5-30V to 0.8-30V 12A Buck Converter Module - Module type: Non-isolated (BUCK) - Input Voltage: 4.5-30V - Output Voltage: 0.8-30V - Output Current: 0-12A, up to 100W (can reach 200W with heatsink) - Operating Temperature: -40C to +85C - Switching Frequency: 300kHz - Conversion Efficiency: Up to 95% - Short Circuit Protection: Yes (current limit at 14A) - Over-Temperature Protection: Yes (automatically shuts down output when overheated) - Input Reverse Polarity Protection: None (external diode recommended at input) - Mounting: Four 3mm screw holes - Wiring: V-IN for input, V-OUT for output Applications Suitable for voltage conversion tasks including battery systems, power supplies, transformers, and DIY adjustable voltage regulators. Common uses include 24V to laptop power, 12V to 3.3V, 12V to 5V, 24V to 5V, and 24V to 12V conversions. Test Data for Reference - Input 12V, Output 5V/10A, Efficiency 81% - Input 12V, Output 5V/6A, Efficiency 86% - Input 24V, Output 12V/8A, Efficiency 91% - Input 24V, Output 19V/6A, Efficiency 94% Package List 1 x DC to DC 4.5-30V to 0.8-30V 12A Buck Converter Module with LED Indicator