---
product_id: 493674501
title: "ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell"
brand: "jessinie"
price: "₱2185"
currency: PHP
in_stock: true
reviews_count: 8
category: "Jessinie"
url: https://www.desertcart.ph/products/493674501-zk-4kx-dc-dc-buck-boost-converter-regulator-cnc-adjustable
store_origin: PH
region: Philippines
---

# 0.5-30V adjustable output Real-time LCD multi-parameter display 0-4A current limit control ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell

**Brand:** jessinie
**Price:** ₱2185
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with precision and confidence — don’t get left in the dark!

## Quick Answers

- **What is this?** ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell by jessinie
- **How much does it cost?** ₱2185 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/493674501-zk-4kx-dc-dc-buck-boost-converter-regulator-cnc-adjustable)

## Best For

- jessinie enthusiasts

## Why This Product

- Trusted jessinie brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY Solar & Beyond:** Versatile module perfect for solar charging, high-power LED driving, battery management & custom power projects
- • **Robust Safety Suite:** Comprehensive protections including anti-reverse, over-voltage, over-current, over-temperature & more for worry-free operation
- • **Precision Voltage Mastery:** Numerical CNC adjustment for ultra-accurate 0.5-30V output tuning
- • **Power Flexibility Unleashed:** Seamlessly boosts or bucks voltage with stable 3A continuous current, peaking at 4A with enhanced cooling
- • **Smart Multi-Parameter Display:** Integrated LCD shows input/output voltage, current, power, capacity & runtime for instant insights

## Overview

The JESSINIE ZK-4KX is a CNC-adjustable DC-DC buck-boost converter offering 0.5-30V output voltage and up to 4A current with real-time LCD monitoring. Designed for professional DIYers and solar enthusiasts, it features advanced protection mechanisms and versatile applications including battery charging and LED driving, ensuring reliable, precise power management in a compact, user-friendly module.

## Description

Product description We delivering products that are designed to elevate your projects to the next level. Whether you are a hardware engineer,hobbyist, student, or professional. Our development boards and components are here to help. Welcome to JESSINIE, for development boards and electronic components. At JESSINIE, we providing a wide range of development board modules, displays, sensors, electronics, power accessories, and DIP sockets to meet your project needs. At JESSINIE, We focus on the importance of reliable and efficient products, we prioritize quality and performance in everything we offer. Choose JESSINIE for your development board and electronic components needs. Thank you for choosing JESSINIE. Numerical control adjustment, accurate and fast, can boost and step down, output voltage 0.5-30V arbitrary adjustment, limit current 0-4A arbitrary adjustment ZK-4KX is equipped with a LCD display module, which can display input voltage/output voltage/output current/output power/output capacity/output time and other parameters Input voltage: 5.0-30V, output voltage: 0.5-30V, output current: can work stably at 3A for a long time, and can reach 4A under enhanced heat dissipation It has a variety of protection mechanisms, such as input anti-reverse connection, output anti-backflow, input under-voltage protection, output over-voltage protection, output over-current protection, output over-power protection, over-temperature protection, overtime protection, and over-capacity protection Converter can be used as an ordinary buck/boost module with multiple protection mechanisms, and can also be used as a DIY solar controller, high-power LED constant current drive module, battery charging module. Product Description Anti-reverse connection protection at the input end, reverse connection will not burn; The output terminal prevents backflow, and there is no need to add a backflow prevention diode when charging the battery;The module can be set to turn on/off by default; Has a variety of software protection mechanisms, and the protection threshold is adjustable. After the module operating parameters exceed the protection threshold, the output is automatically turned off. The output ripple is small, with π-type filtering; Thickened heat sink,Input voltage: 5.0-30V,Output voltage: 0.5-30V Output current: It can work stably at 3A for a long time and reach 4A under enhanced heat dissipation. Output power: 35W for natural heat dissipation and 50W for enhanced heat dissipation Voltage display resolution: 0.01V,Current display resolution: 0.001A,Operating frequency: 180KHZ Conversion efficiency: about 88%,Soft start: Yes (very high power with load module may fail when starting) Protection mechanisms Input anti-reverse connection; Output backflow prevention; Input undervoltage protection (4.8-30V adjustable, default 4.8V) Output overvoltage protection (0.5-31V adjustable, default 31V) Output overcurrent protection (0 -4.1A adjustable, default 4.1A) Output over-power protection (0-50W adjustable, default 50W),Over-temperature protection (80-110 ℃ adjustable, default 110 ℃) Timeout protection (0-100h adjustable, closed by default) Super capacity protection (0-60Ah adjustable, closed by default) Note: After the product triggers the protection mechanism, the output will automatically turn off, the LCD screen will display the protection code, press any key to exit the protection interface

Review: Nice variable power supply module. - This works great for a variable power supply. I’m using a 24 Volt 90 Watt laptop power adapter for the input. I have the boost converter set up to limit my 5 V output to 2.5Amps. The Voltage and Amp display on the unit match my Fluke meter readings. It took me a few minutes to figure out how to navigate the display functions using the push buttons. It’s not difficult after using it a few times.
Review: Displays the voltage and amp draw - Great power source…easy to hookup… compact size….love the readout and what it displays

## Features

- Numerical control adjustment, accurate and fast, can boost and step down, output voltage 0.5-30V arbitrary adjustment, limit current 0-4A arbitrary adjustment
- ZK-4KX is equipped with a LCD display module, which can display input voltage/output voltage/output current/output power/output capacity/output time and other parameters
- Input voltage: 5.0-30V, output voltage: 0.5-30V, output current: can work stably at 3A for a long time, and can reach 4A under enhanced heat dissipation
- It has a variety of protection mechanisms, such as input anti-reverse connection, output anti-backflow, input under-voltage protection, output over-voltage protection, output over-current protection, output over-power protection, over-temperature protection, overtime protection, and over-capacity protection
- ZK-4KX DC-DC Buck Boost Converter can be used as an ordinary buck/boost module with multiple protection mechanisms, and can also be used as a DIY solar controller, high-power LED constant current drive module, battery charging module, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B7MBNP4G |
| Best Sellers Rank | #163,684 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #678 in Power Converters |
| Brand | JESSINIE |
| Color | grey,silver,blue |
| Customer Reviews | 4.4 out of 5 stars 27 Reviews |
| Input Voltage | 30 Volts |
| Item Type Name | Power Converter |
| Item Weight | 0.07 Kilograms |
| Manufacturer | JESSINIE |
| Mfr Part Number | ZK-4KX |
| Model Number | ZK-4KX |
| Number of Items | 1 |
| Output Voltage | 30 Volts (DC) |

## Product Details

- **Brand:** JESSINIE
- **Color:** grey,silver,blue
- **Input Voltage:** 30 Volts
- **Item Weight:** 0.07 Kilograms
- **Output Voltage:** 30 Volts (DC)

## Images

![ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell - Image 1](https://m.media-amazon.com/images/I/61Rjg3k3bbL.jpg)
![ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell - Image 2](https://m.media-amazon.com/images/I/71Cs5bnSOpL.jpg)
![ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell - Image 3](https://m.media-amazon.com/images/I/717aaKbXL5L.jpg)
![ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell - Image 4](https://m.media-amazon.com/images/I/717a7wu3rrL.jpg)
![ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell - Image 5](https://m.media-amazon.com/images/I/71R7ORKfGqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice variable power supply module.
*by B***B on February 4, 2026*

This works great for a variable power supply. I’m using a 24 Volt 90 Watt laptop power adapter for the input. I have the boost converter set up to limit my 5 V output to 2.5Amps. The Voltage and Amp display on the unit match my Fluke meter readings. It took me a few minutes to figure out how to navigate the display functions using the push buttons. It’s not difficult after using it a few times.

### ⭐⭐⭐⭐⭐ Displays the voltage and amp draw
*by C***E on December 19, 2025*

Great power source…easy to hookup… compact size….love the readout and what it displays

### ⭐⭐⭐⭐⭐ Loudspeaker amp turn on/ run Bluetooth adapter
*by W***R on July 25, 2025*

Easy to use and convenient.

## Frequently Bought Together

- JESSINIE ZK-4KX DC-DC Buck Boost Converter Regulator CNC Adjustable CC CV 0.5-30V Voltage Converter DIY Solar Battery Charging Power Supply Module LCD Display with Shell
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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-06-01*