Best Lab Power Supplies Under $100 (2026)

We scored models under $100 by value using specs (voltage/current, USB-C), control type (encoder vs buttons), safety features, user ratings, and price to identify balanced lab-ready options

Top Picks

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    DC Power Supply 30V 10A Adjustable Bench Regulated

    DC Power Supply 30V 10A Adjustable Bench Regulated

    Kungber • ★ 4.0/5 • Mid-Range

    Variable DC power supply with intelligent charging, safety detection, and real-time Ah display. Users note high accuracy and straightforward operation for testing motors and pumps. Coarse adjustment may be less user-friendly

    • intelligent charging with safety detection
    • real-time charging power display
    • compact, adjustable bench supply
    Check current price on Amazon →
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    DC Power Supply 0-60V 0-5A with USB-C quick-charge

    DC Power Supply 0-60V 0-5A with USB-C quick-charge

    Jesverty • ★ 4.0/5 • Mid-Range

    Variable bench power supply with coarse & fine encoder knobs for precise voltage/current control. Includes dual USB ports for 20W quick-charge and a clear 4-digit LED display for readings. Customers note accurate display and solid build quality

    • precise 0.01V/0.001A resolution
    • encoder-based adjustment
    • USB-C 20W quick-charge
    Check current price on Amazon →
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    NICE-POWER DC Power Supply 30V 10A, adjustable benchtop

    NICE-POWER DC Power Supply 30V 10A, adjustable benchtop

    NICE-POWER • ★ 3.9/5 • Mid-Range

    Variable switching DC power supply with 0.01V/0.001A precision and 4-digit LED display. Includes output switch for safe control. Customer notes accurate readings and compact design for easy use

    • 4-digit LED display with real-time V/A/W readouts
    • 0.01V and 0.001A resolution
    • output control via dedicated OUTPUT switch
    Check current price on Amazon →
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    DC power supply 0-30V 0-10A with encoder knobs

    DC power supply 0-30V 0-10A with encoder knobs

    WANPTEK POWER • ★ 3.9/5 • Mid-Range

    adjustable switching bench power supply with coarse & fine knobs, USB-C fast charge, and four-digit display. customers report precise voltage and good value for money, though noise can be loud

    • coarse and fine knob control
    • adjustable voltage/current with OCP
    • USB-C quick-charge support
    Check current price on Amazon →
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Buying Guide

Voltage and current range

Choose a supply whose maximum voltage and current meet your projects — options here include 30–60V ranges and up to 10A for higher-load testing

Control interface

Encoder knobs provide fine, tactile adjustment while button-based interfaces can be quicker for preset changes; pick the control style that fits your workflow

Safety protections

Look for overcurrent protection and intelligent charging features to protect devices and the supply during faults or battery charging use

Connectivity and charging

USB-C quick-charge outputs add convenient power for phones and peripherals — useful if you need a combined bench supply and charging station

Physical form and bench fit

Consider the supply’s footprint and output terminal layout so it fits your bench space and wiring needs without crowding other test gear