Solar USB Charging Module 5V 3A Dual USB Fast Charging, Efficiency DCDC Step Down Converter

Dual USB Solar Charging Module 5V 3A, Efficiency StepDown Converter Overview This compact stepdown module converts a wide DC input into a stable 5V USB output for charging mobile devices. It is optimized for use with solar panels and other DC power sources where space, efficiency, and portability matter. Key benefits efficiency: Up to 92% MAX conversion efficiency for faster charging and reduced power loss from solar panels or DC supplies. Dual device charging: Two USB ports allow simultaneous charging of two devices with a combined maximum output of 5V 3A (with identification resistance). Wide input compatibility: Accepts 6V to 40V DC input, making it suitable for many solar panels and DC sources without extra hardware. Compact and portable: PCB measures 49.8 x 35.9 mm and the module size is 50 x 35 x 12 mm, allowing easy integration into backpacks, portable power stations, or small enclosures. Reliable performance: Stable switching at 150 kHz and an operating temperature range from 40 C to +85 C for a variety of environments. Features and specifications Product name: Dual USB output 3A stepdown module Input: 6V to 40V DC via 5.5 x 2.1 mm port Output: 5V / 3A (MAX) with identification resistance Efficiency: 92% (MAX) Switching frequency: 150 kHz Working temperature: 40 C to +85 C Material: as the picture shows Color: red PCB size: 49.8 x 35.9 mm Module size: 50 x 35 x 12 mm (length x width x height) Typical applications Outdoor and camping: Pair with a portable solar panel to charge smartphones and tablets while off grid. Mobile power projects: Add stable 5V USB outputs to DIY power banks, battery packs, or vehicle DC systems. Emergency and backup power: Use in small emergency kits to convert vehicle or solar panel power into reliable USB charging. What is included 1 x module 1 x wire Notes The 3A maximum output depends on proper identification resistance and available input power. Follow wiring and mounting practices for reliable performance.