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Shipping & Delivery
Enjoy free shipping on orders over $29.99. A flat $4.99 shipping fee applies to smaller orders.
Shipping & Delivery
Things to Keep in Mind
Things to Keep in Mind
Returns Policy
Most new and unopened items qualify for returns within 30 days of delivery.
Eligible return shipping costs are covered by us. Certain items, including custom products, limited editions, hygiene-sensitive items, oversized items, and final sale products, may not be eligible for return.
Refund Timeline
Most refunds are completed within 5–7 business days after the returned item is received and inspected.
This timeline may include:
- 5–10 business days for return transit
- 3–5 business days for inspection and processing
- 5–10 business days for your bank to finalize the refund
How to Return an Item
To start a return, please visit your account and go to your order history. Once your request is submitted, you will receive an update by email after the return is reviewed and processed.
Shipping Information
We currently ship within the United States.
Free shipping is available on orders of $29.99 or more. Orders below $29.99 are subject to a flat $4.99 shipping fee.
Orders are typically processed within 1–2 business days. Estimated delivery times shown on product pages reflect both processing time and transit time.
Minor delays may occur due to carrier or weather conditions.
Why Customers Choose PulinGO
Power your experiments and DIY projects with the ZK-5X DC automatic voltage regulation power supply. Featuring 0–36V adjustable output, 5A max current, and 80W power, this buck-boost converter module is perfect for labs, workshops, and hobbyists. ⚡🔬
The automatic voltage regulation ensures consistent, stable output even when input fluctuates, protecting sensitive electronics like microcontrollers, LEDs, and sensors. 🛡️✔️
With a 5A max current capacity, it delivers reliable power for medium-scale electronics projects, testing, and prototyping. 🔋📊
The buck-boost design allows step-down or step-up conversion, making it versatile for multiple applications. Whether powering low-voltage circuits or stabilizing higher inputs, it adapts seamlessly. 🔄⚙️
Its digital display provides real-time monitoring of voltage and current, ensuring precision and control in laboratory and DIY environments. 🖥️📟
Compact and durable, the ZK-5X converter is a must-have tool for makers, engineers, and electronics enthusiasts. 🎁💡
📦 Package Includes
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1 × ZK-5X DC Automatic Voltage Regulation Module
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1 × User Manual
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1 × Protective Packaging Box
❓ Frequently Asked Questions (FAQ)
Q: What is the output range?
A: Adjustable from 0–36V.
Q: How much current can it handle?
A: Supports up to 5A max output current.
Q: What is the maximum power?
A: Provides 80W of regulated power.
Q: Does it work as both buck and boost?
A: Yes, functions as a DC-DC buck-boost converter.
Q: Is it suitable for lab use?
A: Absolutely—ideal for laboratories, testing, and DIY projects.
Q: Does it include a display?
A: Yes, features a digital display for voltage/current monitoring.
⚙️ Technical Specifications
| Feature | Description |
|---|---|
| Model | ZK-5X DC Automatic Voltage Regulator |
| Input Voltage | Wide DC Input Range |
| Output Voltage | 0–36V Adjustable |
| Output Current | Up to 5A Max |
| Power Capacity | 80W |
| Converter Type | Buck-Boost (Step-Up & Step-Down) |
| Display | Digital Voltage & Current Monitor |
| Application | Labs, DIY Electronics, Arduino, Testing |
| Brand Distributor | PulinGO |
🔒 The PulinGO Promise
🔄 30-Day Returns – Hassle-free refunds and exchanges guaranteed.
📞 24/7 Support – Always available for technical or product questions.
🚚 Fast & Reliable Shipping – Delivered quickly and securely.
💳 Secure Payments – All orders are encrypted for safe checkout.












