12 Volt Tools 0–30V 10A Adjustable DC Bench Power Supply

Product Overview

Bring adjustable DC power to your workbench with the 12 Volt Tools 0–30V 10A DC Bench Power Supply. The SPS-3010 configuration combines variable voltage, an adjustable current limit, and a red four-digit LED display so you can set up compatible low-voltage electronics without relying on a fixed-output adapter.

Separate coarse and fine controls make larger changes and small adjustments easy to manage. Voltage, current, and calculated wattage appear together on the front panel, giving you a clear view of the load while you work on electronics projects, demonstrations, and bench checks.

Important: This manually adjusted DC supply is not an automatic charger or maintainer and has no documented battery-specific charging or float-maintenance program.

Key Features & Benefits

• 0–30V adjustable DC output: Set the voltage to match the requirements of a compatible device or circuit.
• 0–10A adjustable current limit: Establish an appropriate limit before applying power to your project.
• Constant-voltage and constant-current operation: The supply transitions between CV and CC operation as the load and your settings require.
• Four-digit red LED display: View output voltage, current, and calculated power together rather than switching between readouts.
• Coarse and fine adjustment knobs: Use separate voltage and current controls to dial in your bench setup.
• 5V/2A USB-A port: Provide power to compatible USB devices without using the adjustable output terminals.
• Compact bench format: Front-access connections and controls keep routine adjustments within reach.

Technical Specifications

Why Choose This Bench Power Supply?

A variable DC supply lets you choose a suitable voltage rather than build your workflow around a single fixed-voltage adapter. The current limit adds another setting to manage during bench testing, while the three readouts help you observe how a connected load behaves.

For 12-volt projects, confirm the device's voltage range and startup and operating current before connecting it. The 10A output limit does not make this a replacement for a vehicle battery, a high-current car-audio amplifier supply, or a vehicle programming power source.

Setup & Compatibility Notes

• Confirm the AC input rating on the supplied unit before plugging it in. Input configuration and power cords vary by market; do not assume universal-voltage input.
• Follow the included manual, verify polarity, and establish the required voltage and current limit before connecting a load.
• Keep the cooling vents clear and use the supply in a dry, ventilated work area.
• Use leads and connectors rated for the intended current. The included test leads should not be assumed suitable for prolonged high-current operation.
• Battery applications require verified voltage, current, and chemistry compatibility; use a dedicated battery charger for automatic charging or unattended maintenance.

Frequently Asked Questions

Is this a battery charger or maintainer?

No. It is a manually adjusted bench power supply. It has no documented automatic charging program, full-charge cutoff, or maintenance mode.

Can it power a 12V device on the bench?

It can supply a compatible DC load when the required voltage and both startup and operating current stay within the supply's ratings. Verify the device requirements and connection polarity first.

Does the supply always push 10 amps into the device?

No. The connected load determines its current demand during constant-voltage operation. The current setting establishes the limit; reaching that limit can cause the supply to enter constant-current operation and reduce output voltage.

Does this version include USB-C or programmable presets?

This listing is for the red LED SPS-3010 with coarse/fine adjustment knobs and a 5V/2A USB-A port. It is not the USB-C, encoder-control, or programmable-preset version.

What do the display-resolution figures mean?

Resolution describes the smallest displayed increment, not guaranteed measurement accuracy. Use an appropriate calibrated meter when your application requires independent verification.

What comes in the package?

One DC bench power supply, an AC power cord, a test-lead set, and an instruction manual. Other equipment shown in application images is not included.

Explore More

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