If you mean electrical noise, there's some fast switching noise on the output as you might expect from a switching power supply, the amplitude stays the same but the frequency goes up with output voltage. It'll show up on a 'scope if there's no load, probably as a sequence of quick impulses with a decaying "ring", it's nowhere near as bad as a typical cheap switched PSU and any kind of load capacitance should mop it up. If you mean audible noise, it has a fan but that only comes on when it's hot. Without the fan running it's effectively silent, though some switching PSUs can emit a whistle at the switching frequency, if you get one with something physically able to vibrate inside and your ears are up to hearing that. My ears aren't bad and I've heard nothing from my one.

With ‎wps1203h style ‎120v/3a(360w) what is maximum current at 12v / 24v?

At both voltages, the max current is 10 amps.

How do I set constant current for it? It keeps reverting to 0 when i press output

Replicated your problem on my unit - once you have set your required voltage output and the maximum current limit setting for the item under test or being run you then push 'Output' .... BUT, if there is no active load attached to the power supply it will show the row of 'zero's' on the current readout after a couple of seconds or so.

When using the usb output is the current and voltage displayed so that you can use it as a usb power meter?

NO THERE IS NO VISUAL INDICATION THAT THE USB CIRCUIT IS ON OTHER THAN THE APPLIANCE ON CHARGE THE FRONT PANEL SHOWS ONLY POWER OUTPUT NOT USB.

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DC power supply (0-30V,0-10A) adjustable, switching power supplies, mini high precision 4-digit display with USB fast charging interface, variable lab bench power supply, output button/encoder knob

DC power supply (0-30V,0-10A) adjustable, switching power supplies, mini high precision 4-digit display with USB fast charging interface, variable lab bench power supply, output button/encoder knob

Product ID: 370076703

Details

Brand
NANKADF
Colour
Black
Connector type
Usb
Item weight
1.51 Kilograms
Material

⚡0-30V adjustable voltage

🔋0-10A high current output

🔢4-digit precision display

฿11588

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Description

⚡ Power precision meets sleek portability — never settle for less!

COMPACT POWERHOUSE - Lightweight (2.47 lbs) and portable design fits perfectly on any lab bench or workspace.
ROBUST SAFETY SUITE - Advanced OVP, OCP, SCP, and thermal controls ensure your projects and power supply stay safe and reliable.
SMART USB FAST CHARGING - Integrated 18W USB port auto-adapts to multiple fast charging protocols, saving space and time.
SEAMLESS CC CV SWITCHING - Automatically toggles between constant current and voltage modes for optimal device protection.
PRECISION AT YOUR FINGERTIPS - Ultra-accurate 4-digit LED display with 0.01V/0.001A resolution for flawless control.

The NANKADF WPS3010H is a compact, high-precision DC power supply delivering up to 30V and 10A with a crystal-clear 4-digit LED display. Featuring digital encoder controls, an 18W USB fast charging port, and intelligent CC/CV automatic switching, it’s engineered for professional-grade lab and bench use. Enhanced with comprehensive safety protections including OVP, OCP, SCP, and thermal management, this lightweight powerhouse is designed to elevate your electronics projects with reliable, precise power delivery.

Specifications

ASIN	B09C8LWV9W
Amperage	10 Amps
Best Sellers Rank	773 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2 in Industrial Power Supply
Box Contents	Power supply, output cable, input cable,instruction manual
Brand Name	NANKADF
Colour	Black
Connector Types	Usb
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (1,503)
Enclosure Material	PE_(Polyethylene), PLA_(Polylactic_Acid), PS_(Polystyrene)
Form Factor	compact
Input Voltage	115 Volts (AC)
Item Dimensions	19 x 9 x 15 centimetres
Item Weight	1.51 Kilograms
Manufacturer	NANKADF
Manufacturer Part Number	WPS-10H
Maximum Power	300 Watts
Model Number	WPS3010H
Output Current	10 Amps
Output Voltage	30 Volts (DC)
Output Wattage	300 Watts
Specification Met	CE, RoHS
UPC	780279579734

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฿11588

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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The product exactly matches the description. Very satisfied with my purchase.

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