What it does 400W DCtoDC stepup power supply module designed to raise a lower DC voltage to a higher DC voltage for electric equipment, digital products, laptops and similar devices. Can also be used as a driver for power LED lighting or other voltageboosting applications. Why customers need it Provides a reliable way to power highervoltage devices from lowervoltage sources (for example, from batteries or vehicle electrical systems). Hardwired screw terminal connections make installation and maintenance fast and secure without soldering. Key benefits conversion efficiency: maximum efficiency up to 96% (actual efficiency varies with input/output voltage, current, and the voltage difference between input and output). Robust electrical connections via screw terminals for convenient wire connection and disconnection. Versatile: compatible with a range of electric equipment and digital products, including laptops and power LEDs. Important attributes Function: DCtoDC stepup (boost) power conversion, 400W output capability. Compatibility: intended for electric equipment, digital products, laptops, and power LED lighting. Connections: input and output use screw terminals for secure, serviceable wiring. Performance: up to 96% conversion efficiency; actual performance depends on input/output voltages and current. Typical applications (practical scenarios) 1. Powering a laptop or other digital device from a lowervoltage battery pack in offgrid or mobile environments. 2. Boosting vehicle or battery voltages to run electric equipment or accessories that require higher DC voltages. 3. Driving power LED arrays where a stable boosted DC supply is required. Usage notes Expect efficiency to change with load and voltage conditions; plan for thermal management accordingly. Use proper wiring practice and correct terminal tightening to ensure reliable longterm connections.