3A 3–12V Adjustable AC/DC Power Supply with LED Display | JETTING

JETTING 3A Adjustable AC/DC Regulated Switching Power Supply

Power your electronics with precision. The JETTING 3–12V 3A Adjustable Regulated Power Adapter gives you full control over your output voltage with a convenient built-in LED digital display. Whether you're driving LED light strips, testing circuits, or running low-power devices, this compact switching converter delivers clean, stable DC power on demand.

Made in Mainland China.

Key Features

• Adjustable Output Voltage (3V–12V DC): Dial in the exact voltage your device needs — no guessing, no overloading. Perfect for a wide range of low-power electronics.
• Built-in LED Digital Display: Monitor your output voltage at a glance in real time, making setup and adjustment quick and easy.
• Universal AC Input (120V–240V): Compatible with outlets worldwide, so it works at home, in the workshop, or while travelling internationally.
• Regulated Switching Design: Efficient switching technology minimizes energy waste and generates less heat compared to traditional linear adapters.
• Multi-Layer Safety Protection: Built-in overheat, overcurrent, and overload protection keep both the adapter and your connected devices safe during operation.
• Energy-Saving & Eco-Friendly: Designed with power efficiency in mind to reduce electricity consumption and environmental impact.
• Compact & Portable: Lightweight plastic and metal construction makes it easy to toss in a bag for on-the-go repairs, field work, or travel.

Specifications

Compatible Applications

This versatile power adapter is suitable for powering:

• LED light strips & LED lighting systems
• CCTV cameras & security systems
• Routers & network equipment
• Small motors & fans
• TV boxes & media players
• Game consoles & handheld electronics
• DIY electronics & prototyping projects
• Electronic repair & testing workbenches

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Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: What devices can I power with this 3–12V adjustable power supply?

A: This adjustable AC/DC regulated power adapter is compatible with a wide range of low-power devices including LED light strips, CCTV cameras, routers, small motors, TV boxes, game consoles, and DIY electronics projects. As long as your device operates within 3–12V DC and draws no more than 3A, it is a great fit.

Q: How do I adjust the output voltage on this power supply?

A: The adapter features a manual adjustment mechanism that lets you set the output voltage anywhere between 3V and 12V DC. The integrated LED digital display shows the current output voltage in real time so you can fine-tune it accurately for each connected device.

Q: Is this power supply safe to leave plugged in for extended periods?

A: Yes. The unit includes built-in overheat, overcurrent, and overload protection circuits that automatically safeguard both the adapter and your connected equipment. The energy-efficient switching design also keeps operating temperatures low during normal use.

Q: Will this adapter work with international wall outlets?

A: Yes. The input voltage range of AC 120V–240V makes it compatible with electrical outlets in most countries worldwide, making it a practical choice for travellers and international users alike (please ensure you have the appropriate plug adapter for your region's socket type).

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.