---
product_id: 224759262
title: "DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black)"
brand: "kungber"
price: "$254.31"
currency: USD
in_stock: true
reviews_count: 8
category: "Kungber"
url: https://www.desertcart.ec/products/224759262-dc-power-supply-variable-30v-10a-adjustable-switching-regulated-dc
store_origin: EC
region: Ecuador
---

# 30V adjustable voltage 10A high current output 18W fast USB charging DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black)

**Brand:** kungber
**Price:** $254.31
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up with precision and safety—because your projects deserve the best!

## Quick Answers

- **What is this?** DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black) by kungber
- **How much does it cost?** $254.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/224759262-dc-power-supply-variable-30v-10a-adjustable-switching-regulated-dc)

## Best For

- kungber enthusiasts

## Why This Product

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

## Key Features

- • **Bonus USB Power:** 18W USB port delivers rapid charging for your devices—stay powered without extra adapters.
- • **Compact & Portable:** Lightweight 2.3 lb benchtop design fits perfectly in labs, workshops, or home DIY setups.
- • **Robust Safety Suite:** Overcurrent alarm, thermal, leakage, and short-circuit protections keep your devices and workspace safe.
- • **Precision Power Control:** Fine & coarse encoder knob for exact voltage and current tuning—no more guesswork.
- • **Intelligent Charging Mode:** Real-time Ah display with auto cut-off prevents overcharging and protects your batteries.

## Overview

The Kungber Variable DC Power Supply delivers up to 30V and 10A with precise encoder controls and intelligent charging features. Its compact 2.3 lb design includes advanced safety protections and an 18W USB port for fast device charging, making it ideal for professional labs, DIY enthusiasts, and tech managers seeking reliable, efficient power solutions.

## Description

Buy DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black): Power Supplies - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good budget bench supply, one quirk - I’ve been using it almost daily for several weeks, and I have to say it’s quite good for the price. It’s a bit more accurate than my previous one, voltage stays pretty steady under load, and the 2Amp USB on the front is a nice bonus. From my limited experience (and without digging through the internals) it seems like a pretty standard power supply, but a well-engineered one. I even like that the off/on switch is on the back of the unit, because that makes it less likely that I’ll turn it on by accident. I really only have one notable gripe, but I do think it’s important to be aware of this before buying. For my purposes it’s just an odd quirk, but for some applications I could see it being a substantial concern. The whole unit actually stays powered and continues to produce the full output for about ten seconds before actually turning off, regardless of whether you flip the on/off switch or unplug it from the wall. At least the screen stays on too so that you have a visual warning. Overall, I’m glad I bought it. Would buy again if I needed another budget power supply.
Review: Works Like A Champ - This charger has been running non-stop without any issues for over 4 days while I top balance my new LiFePO4 cells. This charger/power supply is a beast. It's only slightly warm and the fan hasn't even kicked on yet. Granted, I'm charging with low wattage, but I'm impressed by its ability to stay cool. There are two features that really swayed me to this particular power supply. The first is the coarse and fine adjustments. This feature seems to only be found on the pricier power supplies. The second feature I really liked was that it showed watts. While this isn't exactly critical to know, it's definitely useful to see it on a screen without having to break out a calculator. This unit also came with the standard wires with alligator clips. No complaints there. They appear to be good quality and work as they're intended. When you consider the price of this unit and the features it has, it's a bargain. It's also pretty accurate. Only .003 volts difference between what's on the screen and what I measured with my multimeter. Oh..... to top it off, Kung Kungber gives you a lifetime warranty. So yeah, zero complaints, accurate, great features and a warranty. I highly recommend this power supply.

## Features

- Intelligent Charging and Safety Detection: Our DC power supply features intelligent charging mode. The real-time display of charging power (Ah) keeps you informed of the battery status. Worried about overcharging? Rest easy knowing our power supply stops charging when your battery is full. With built-in detection of incorrect connections, ensuring safe and reliable charging.
- Overcurrent Detection Alarm: Easily activated with the 'OCP' button. Detects short circuits and overcurrents, triggering an alarm and stopping output to protect connected devices.
- Compact and Various Application: This DC power supply is less than 2.3 lb and measures only 7.59 x 3.35 x 6.1 inches, applies for laboratory, school, repair, electrolyzation, electroplate, brush plating, lamp test, aging testing, battery charge, home DIY and other requirements. 18W USB port Quickly charge your devices with high-speed 18W output for efficient charging, no worry about running out of power.
- Reliable and Safety: many safety measures are adopt in Kungber lab DC power supply - Grounding wire, Leakage protection,Thermal protection, Voltage overload protection, Power overload protection and Short-circuit protection. Kungber power supply use premium electronic components, provide reliable working status and prolong the life of product effectively. When the working temperature is more than 122℉/50℃,the intelligent thermal protection will active the cooling fan to lower the temperature
- What You Get - 1 x Kungber Variable DC Power Supply, 1 set of Output Power Cords , 1x Input Power Cord, 1 x User Manual, and Technical Support from Kungber.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DJ1FDXV |
| Amperage | 10 Amps |
| Best Sellers Rank | #16,446 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Lab Power Supplies #20 in Life Science Supplies |
| Brand | Kungber |
| Color | Black |
| Connector Type | usb |
| Connector Type Used on Cable | usb |
| Customer Reviews | 4.5 out of 5 stars 3,902 Reviews |
| Enclosure Material | Plastic |
| Form Factor | benchtop |
| Input Voltage | 115 Volts |
| Item Dimensions | 7.59 x 3.35 x 6.1 inches |
| Item Height | 6.1 inches |
| Item Type Name | Lab DC Power Supply |
| Item Weight | 2.3 Pounds |
| Manufacturer | Kungber |
| Material | Plastic |
| Maximum Power | 300 Watts |
| Model Number | SPS3010B |
| Output Current | 10 Amps |
| Output Voltage | 30 Volts |
| Output Wattage | 300 Watts |
| Specification Met | CE |
| UPC | 711731587530 |

## Product Details

- **Brand:** Kungber
- **Color:** Black
- **Connector Type:** usb
- **Item Weight:** 2.3 Pounds
- **Material:** Plastic

## Images

![DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black) - Image 1](https://m.media-amazon.com/images/I/61bEnvu76rL.jpg)
![DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black) - Image 2](https://m.media-amazon.com/images/I/71-rW5-zwTL.jpg)
![DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black) - Image 3](https://m.media-amazon.com/images/I/71EihwtUzCL.jpg)
![DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black) - Image 4](https://m.media-amazon.com/images/I/71kaXV2ACDL.jpg)
![DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black) - Image 5](https://m.media-amazon.com/images/I/81K1ycxeAbL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Is this made in China?**
A: Yes, but any power supply this cheap is going to be made in China, hard stop.  There are US made power supplies and they are higher quality but expect to pay at least 3x as much for the same output.  These supplies are surprisingly high quality for the price point.  You can buy US made and they are superior.  However, for the typical hobby user, these cheap Chinese units will handle pretty much everything you'll want to do for a fraction of the cost.  The main downside of these supplies is the high ripple on the output but for things like electroplating, that doesn't matter too much.

**Q: What does c.v and c.c mean?**
A: They are acronyms and stand for ""Constant Voltage"" or ""Constant Current"".
They usually are associated with a LED or an indicator of some kind, as you suggest. When you use a power supply you usually set the desired voltage and the maximum current. When you connect the load two things can happen:
The load requires more current than the maximum you set
The load requires at most the maximum current you set
In the first case the PSU become a current source: the current is limited to what you set and voltage drops accordingly, that's CC for you. In the second case what is costant is the voltage, so that's CV.

**Q: Do you really short between the pos and neg terminals to adjust the maximum current as instructions seem to say?**
A: Yes.  This is a typical method of adjusting the CC limit on any supply that has this feature.

**Q: will this be a good dc power supply to use to anodize titanium?**
A: Quite stable amperage so I guess it’s good for that

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good budget bench supply, one quirk
*by D***. on July 31, 2021*

I’ve been using it almost daily for several weeks, and I have to say it’s quite good for the price. It’s a bit more accurate than my previous one, voltage stays pretty steady under load, and the 2Amp USB on the front is a nice bonus. From my limited experience (and without digging through the internals) it seems like a pretty standard power supply, but a well-engineered one. I even like that the off/on switch is on the back of the unit, because that makes it less likely that I’ll turn it on by accident. I really only have one notable gripe, but I do think it’s important to be aware of this before buying. For my purposes it’s just an odd quirk, but for some applications I could see it being a substantial concern. The whole unit actually stays powered and continues to produce the full output for about ten seconds before actually turning off, regardless of whether you flip the on/off switch or unplug it from the wall. At least the screen stays on too so that you have a visual warning. Overall, I’m glad I bought it. Would buy again if I needed another budget power supply.

### ⭐⭐⭐⭐⭐ Works Like A Champ
*by J***O on March 31, 2021*

This charger has been running non-stop without any issues for over 4 days while I top balance my new LiFePO4 cells. This charger/power supply is a beast. It's only slightly warm and the fan hasn't even kicked on yet. Granted, I'm charging with low wattage, but I'm impressed by its ability to stay cool. There are two features that really swayed me to this particular power supply. The first is the coarse and fine adjustments. This feature seems to only be found on the pricier power supplies. The second feature I really liked was that it showed watts. While this isn't exactly critical to know, it's definitely useful to see it on a screen without having to break out a calculator. This unit also came with the standard wires with alligator clips. No complaints there. They appear to be good quality and work as they're intended. When you consider the price of this unit and the features it has, it's a bargain. It's also pretty accurate. Only .003 volts difference between what's on the screen and what I measured with my multimeter. Oh..... to top it off, Kung Kungber gives you a lifetime warranty. So yeah, zero complaints, accurate, great features and a warranty. I highly recommend this power supply.

### ⭐⭐⭐⭐ First one was shorted, second one works great
*by D***K on August 31, 2021*

They get a one-star dink for the first unit being defective (it was shorted internally and never got off Constant Current mode), but it was quickly and easily replaced (thanks Amazon Prime) and the new unit works great. The dials are a bit fiddly to get just exactly right, but it gets close enough and stays set very well. To save everyone time, here's the TLDR on how to set it up for use: 1. Turn on, set what maximum voltage (Constant Voltage mode) you want the supply to provide using the "V" dials. Do not mess with the "A" dials. 2. Once voltage is dialed in, clip the two leads to each other (minor spark sometimes when that happens) and use the "A" dials to set what the maximum amperage (Constant Current mode). Do not mess with the "V' dials. 3. Disconnect the leads from each other and you're all set to connect your load. If your load draws less amperage than your supply's max setting, it will provide the maximum voltage (Constant Voltage mode) until the current limit is reached, then it will flip to provide the maximum amperage (Constant Current mode) and decrease voltage to match the load's requirements at that current. As an example, for testing I connected a 12V, 6A Peltier cooler plate to it, setting the voltage to 12, but limiting the amperage to only 600 mils. It ran fine, did some minor cooling on one side and minor heating on the other, and only drew about 1.8V while doing so, having hit the amp limit. On a second test, I connected a 12V computer case fan to it, setting the voltage to 12V and the current to 500 mils, but since the fan only wanted ~180 mils for max speed, it simply stayed in Constant Voltage mode and provided 12V/180mA. The reason I mention not messing with the other dial during configuration is that while disconnected (Voltage setting) or shorted (Amperage setting), the display only shows the changes being made to that setting, but BOTH SETS OF KNOBS still can change their respective settings. That is, you can dial the amperage setting up while in voltage set mode but you won't know what the new setting is as it won't display it - this can be very dangerous to you and your load if you then connect your load assuming the amperage was limited to what you'd set earlier. Overall, a nice little bench power supply.

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-31*