12V/24V to USB 5V 3A DC Buck Converter Step-Down Adapter

12V/24V to USB 5V 3A DC-DC Buck Converter Adapter

Efficiently step down your DC power supply from 12V or 24V to a stable USB 5V 3A output with this compact and reliable buck converter adapter. Featuring over 95% maximum conversion efficiency, triple intelligent protection, and a rugged silicone-encapsulated design, this adapter is the perfect power solution for automotive, solar, and industrial applications.

Key Features

• Wide Input Range: Accepts DC 8–35V input, making it compatible with 12V and 24V systems.
• Stable USB Output: Delivers a clean DC 5V / 3A (15W) output via a single USB port.
• High Conversion Efficiency: Synchronous rectification technology achieves up to 95%+ efficiency, minimizing heat and energy waste.
• Triple Intelligent Protection: Built-in over-current (3.5A), over-temperature, and output short-circuit protection for safe, worry-free operation.
• Durable Construction: Silicone encapsulation ensures strong thermal conductivity, water resistance, and vibration resistance — ideal for mobile and outdoor environments.
• Flame-Retardant Housing: High-quality plastic shell with excellent flame-retardant performance for added safety.
• Broad Application: Compatible with car audio systems, radios, monitors, LED displays, children's ride-on vehicles, LCD TVs, electric fans, solar/photovoltaic panels, motors, and industrial equipment.

Specifications

Package Includes

• 1 × DC-DC Buck Converter Adapter (Cable with USB Output)

Note: This product may be shipped in either the new or old version design at random. Please be aware of this before placing your order.

Made in Mainland China.

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Frequently Asked Questions

Q: What input voltage range does this DC-DC buck converter adapter support?

A: This buck converter adapter supports a wide DC input range of 8V to 35V, making it fully compatible with standard 12V and 24V power systems used in vehicles, solar panels, and industrial equipment.

Q: Is this USB buck converter safe to use in a car or outdoor environment?

A: Yes. The adapter features silicone encapsulation for water resistance and vibration resistance, a flame-retardant plastic housing, and triple intelligent protection (over-current, over-temperature, and short-circuit), making it well-suited for automotive and outdoor use.

Q: What devices can I power using this 12V/24V to USB 5V 3A converter?

A: This converter can power a wide range of USB-compatible devices and systems, including car audio equipment, radios, LED displays, monitors, LCD TVs, electric fans, children's ride-on cars, and devices connected to solar or photovoltaic power systems.

Q: How efficient is this step-down converter?

A: Thanks to synchronous rectification technology, this buck converter achieves a maximum conversion efficiency of over 95%, meaning very little energy is lost as heat during operation.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.