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Selecting the correct lab power supply is crucial for the reliable and accurate operation of sensitive electronic equipment. The right unit ensures stable voltage and current, protecting your experiments and devices from damage. Understanding key features will help you make an informed decision for your specific needs.
1️⃣【4-Digit Display & Power Calculation】: The Jesverty SPS series features a big bright 4-digit LED display that shows measured values of V／A／W that the unit outputs in real-time. The display resolution is up to 0.01V, 0.001A, and 0.1W.
2️⃣【Auto C.V. and C.C. Mode】: The Jesverty SPS series can be used as a constant-voltage*(C.V.) power supply and constant-current*(C.C.) power supply even when the load is changed. It switches automatically between CV mode and CC mode according to...
🌟Note: The V and A settings you set are the crossover point at which the mode switches.
3️⃣【Compact Body & Lightweight】: The Jesverty SPS series measured only 7.1(D)x3.35(W)x6.1(H)inches and weight of approx. 2.5lbs. It saves space on your workbench and can be moved around without any frustration.
4️⃣【Reliability and Safety】: The Jesverty SPS series is built with high-quality materials and reliable circuit designs that include multiple protection functions, such as short-circuit protection, over-load protection, grounding terminal...
5️⃣【Items you get & Customer service】: 1 x SPS Unit, 1 x Power Cord*, 1 set of test leads*, 1 x instruction manual (contact information included). We provide professional technical support. Should you have any problems or questions about your...
🌟Note: Power cords and the AC input settings vary depending on the destination for the product at the factory-shipment.
🌟Note: The test leads that come with the unit are merely a give-away, we recommend that you prepare test leads with sufficient current capacity if your project needs long-term use of high current.
1️⃣【Coarse & Fine Encoder Knob】: Jesverty's SPS-V bench power supply upgrades from traditional potentiometer coarse & fine adjustment knobs to encoder coarse & fine knobs making it more convenient to set your desired voltage and current and...
2️⃣【USB-A & USB-C 20W Quick-Charge】: The Jesverty desktop power supply features Type-A and Type-C dual charging ports, both supporting 20W fast charging⚡. Convenient for charging your smartphone and powering up your Arduino UNO, Raspberry Pi, or...
3️⃣【Output ON/OFF Button】: With a single press of the added output button, you can easily switch the output ON/OFF. When you want to adjust settings, you don't have to remove the load or turn off the power each time! !
4️⃣【Functions & Protection】: AC115V/230V selectable input, OCP over-current protection, Temperature-regulated cooling fan, OPN* output status setting, etc. A bunch of convenient functions are loaded within this tiny unit! !
🌟Note: OPN is a function that lets the unit output voltage and current as soon as you turn the power switch on without needing to push the "OUTPUT" button.
5️⃣【Compact & Lightweight】: Jesverty power source for electronics is made even more compact, measuring only 7.1(D)x3.6(W)x6.2(H)inches and weighing approx. 2.5lbs, which can greatly save valuable space on your workbench. Perfect for applications...
6️⃣【Items you get & Customer service】: 1 x SPS-V Unit, 1 x Power Cord*, 1 set of test leads*, 1 x instruction manual (Contact information included). We provide professional technical support. Should you have any problems or questions about your...
🌟Note: Power cords and the AC input settings vary depending on the destination for the product at the factory-shipment.
🌟Note: The test leads that come with the unit are merely a give-away, we recommend that you prepare test leads with sufficient current capacity if your project needs long-term use of high current.
High-precision Encoder Knob: Different from general knobs, this DC power supply has a precise encoder knob. You can press the knob to switch each digit, and then turn the knob to customize each digit in the range of 0-9. Set the voltage or current you...
Output Enable/Disable Button: In the process of using the bench power supply, Output button can prevent us from forgetting to turn off the output and causing damage to the load. Just press this button to turn on or turn off the output of the power supply...
Overcurrent Protection: When the OCP function is turned on, if the load equipment is short-circuited during operation, the adjustable power supply will automatically stop output and send a buzzer to alert the user. Protect the adjustable power supply and...
Precise 4-digit LED Display: The dc power supply is equipped with a high-definition 4-digit display with data accurate to 0.01 V and 0.001 A. It has constant voltage (C.V.) and constant current (C.C.) modes, which can be switched automatically. You can...
USB Fast Charging Port: The variable power supply is configured with an 18W fast charging port. No more mplaining about mobile phones or repaired devices not being charged in time. The NANKADF dc power supply allows you to avoid this dilemma. It charges...
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...
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...
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...
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.
Precise 4-digit LED Display, Auto Power Calculation: The NICE-POWER DC power supply variable is a professional switching power supply regulation device with a high resolution of 0.01V and 0.001A. The variable power supply features a big bright 4-digit LED...
OUTPUT Switch Control: Sometimes we need to switch between different voltage or current outputs in experiments or work, but we often forget to turn off the output and causing damage to the load. The adjustable DC power supply OUTPUT key is designed to...
Reliability and Safety: Safety is our priority, all lab power supplies are certified. The adjustable switching regulated power supply is built with premium electronic components and reliable circuit designs that include multiple protection functions, such...
5V 2A USB Port, Intelligent Cooling Fan: Complaining about mobile phones or repaired devices not being charged in time? The NICE-POWER adjustable DC power supply allows you to avoid this dilemma. The variable power supply has built-in 5V 2A USB charging...
Compact Design, Lightweight and Portable: The DC voltage stabilized power supplies adopt stable vertical design with the shock-absorbing rubber feet on the bottom of bench supply, making it safer and more stable when using. The size of adjustable DC power...
Various Applications: This benchtop power supply is suitable for electronics repair, communication equipment maintenance, electrolysis, electroplating, brush plating, lamp test, aging test, burn-in test, production line test, DIY, labs, schools...
Quality Assurance, Customer Service: Purchasing from NICE-POWER, you will get DC power supply variable 30V 10A*1, output power cord*1, input power cord*1, user manual*1, efficient after-sales service and technical support. We will inspect all lab power...
Stable Output, C.V./C.C. Automatic Conversion: This variable DC power supply is a low noise, low ripple adjustable continuous output power supply that can work at full load for a long period of time. The bench power supply can be used as a...
Front Power Switch, Precise Coarse & Fine Adjustment Knobs: Upgrade from the old-fashion switching power supply, the brand new version power switch is on the front of DC regulated power supplies, you do not need to turn to the back to turn on/off the...
Upgraded DC Power Supply: The upgraded DC power supply integrates various advanced functions. For example, precise coding knobs, USB and type-c fast charge, OCP short circuit alerts, high-definition four-digit display and multiple security protection...
Coarse and Fine Coding Knob: Unlike other coding knobs, this bench power supply is equipped with coarse and fine tuning coding knobs, the coarse tuning knob sets the value before the decimal point, and the fine tuning sets the number after the decimal...
USB and Type-C Charging Port: One of the major advantages of our variable power supply over other variable power supplies is the addition of the TYPE-C fast charging port, which is different from the normal USB charging port and has a 5V/3.6A output for...
Short Circuit Alarm: Safety always comes first. When the load equipment is short-circuited, the adjustable power supply will automatically stop the output and emit a buzzer to remind the user. Not only that, the adjustable power supply also has the...
Wide Applications: The adjustable dc power supply features an intelligent temperature-controlled fan and heat sink for excellent heat dissipation and is especially suitable for laboratory, electronic repair DIY, communication equipment maintenance...
Packaging: 1 x variable dc power supply, 1 x output power cord, 1 x input power cord, 1 x user manual. Tip: If you want to turn off the key beep, press and hold the voltage knob for a few seconds until you hear a beep, then the key beep will turn off
This DC power supply has been upgraded with automatic voltage detection technology, intelligently adapting to 110V and 220V ±10% AC inputs without manual switching. Please note: The voltage toggle switch (115V/230V) has been removed from the rear panel...
Precise encoder knob: HANGELL DC power supply 0-30V 0-10A is different from the ordinary traditional knob, which is adjusted by precision encoder knob, with high precision and strong stability. With coarse adjustment and fine adjustment, the number of...
Output switch button: The variable dc power supply is equipped with an output switch button, so you can easily turn on or off the output by pressing the output button. You can check the working status through the indicator light on the display screen...
Short circuit alarm: In order to improve the safety of lab power supply and prolong its service life, we designed a short circuit alarm device for DC power supply. After the OCP function is turned on, if the load equipment is short-circuited in the...
High-precision 4-digit LED display screen: The laboratory DC benchtop power supply is a professional laboratory power supply regulating device with high resolution of 0.01V and 0.001A, providing more accurate voltage and current readings. Constant voltage...
Packaging and after-sales service: The package includes: 1 x variable DC power supply, 1 x input power cord, 1 x output power cord, 1 x user manual. We provide lifelong technical support. If you have any question, please feel free to contact us.
◆ HIGH PRECISION INSTRUMENT WITH MANY UNIQUE FEATURES - Very Easy setup with a rapid adjustment knob. There are buttons to switch to course or fine adjustment and a button to switch to voltage or current selection. The input voltage is switchable...
◆ 4 DIGITS READINGS WITH BACK-LIT LED DISPLAY - With a 0.001V and 0.001A resolution, 4 digits provide more accurate and clearer visible readout for the voltage and current values with only 1 knob, extremely durable and easily visible even in low-light...
◆ HIGH-QUALITY WITH ESSENTIAL SAFETY - Grounding wire, thermal protection, voltage and current overload and short-circuit protection ensure the safety. The built-in quiet variable fan reduces the operational noise and prolongs the life of product. There...
◆ CONSTANT VOLTAGE & CURRENT OPERATION MODE - Easy to dial in the desired voltage with the encoded-controlled adjustment knob and then you choose the mode with one of the constant buttons.
◆ PROGRAMMABLE CONTROL - USB & RS232 ports for remote control of the power supply. Software is included
◆ WHAT YOU GET - 1 x Korad KA3005P Power supply , 1 x power cord , 1x Set of 5 Amp test leads, 1 x User manual
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Power Supplies
Safety and Certifications
Always check for relevant safety certifications, such as UL, CE, or FCC, which indicate that the product meets established safety and performance standards. Ensure the power supply has proper grounding and insulation to prevent electrical hazards. Understanding the power input requirements (voltage, frequency) is also crucial to ensure compatibility with your local power grid.
Frequently Asked Questions
What is the difference between linear and switching power supplies?
Linear power supplies use a transformer and regulator to produce a stable output, resulting in low noise but lower efficiency. Switching power supplies use electronic switches for higher efficiency and smaller size, but may introduce more electrical noise.
Why is ripple and noise important in a lab power supply?
Ripple and noise are unwanted AC components superimposed on the DC output. For sensitive electronic circuits, especially in measurement and amplification, these can cause errors and affect performance.
What does 'regulation' mean for a power supply?
Regulation refers to the power supply's ability to maintain a constant output voltage or current despite changes in the input voltage (line regulation) or the load connected to the output (load regulation).
Are programmable power supplies necessary for basic lab work?
For basic tasks like powering simple circuits or testing components, a standard adjustable benchtop supply is usually sufficient. Programmable units are more beneficial for automated testing, complex experiment setups, or precise control sequences.
What safety features should I look for?
Essential safety features include over-voltage protection (OVP), over-current protection (OCP), and over-temperature protection (OTP). These prevent damage to both the power supply and the connected device in case of a fault.
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