The Best Bench Power Supply Under $100
Researched by Johnny Alto · last updated July 27, 2026
Short answer: The best bench power supply under $100 is the Jesverty SPS-3010 Bench Power Supply. The pick that is genuinely under $100 (the trusted Korad linear supplies edge just over budget). The main things to weigh are adjustable v and a, current limiting, clear display, and linear vs switching.
Jesverty SPS-3010 Bench Power Supply
The pick that is genuinely under $100 (the trusted Korad linear supplies edge just over budget). The Jesverty is a 30V/10A switching supply with fine voltage and current adjustment, a four-digit display, constant-current limiting so you can cap current and not fry a board, and even a USB port. Makers like that it gives real adjustable, current-limited power plus twice the amps of the Korad for less than $100.
Check price on Amazon Live price on Amazon. Representative image.A bench power supply is one of the first real tools an electronics hobbyist buys, and under $100 you can get an adjustable, regulated supply with a clear display and current limiting, which is the safety feature that saves your projects. Look for adjustable voltage and current, an accurate display, and constant-current limiting to protect what you power.
How do the best options for bench power supply under $100 compare?
| Pick | Product | Why it makes the list |
|---|---|---|
| Top pick | Jesverty SPS-3010 Bench Power Supply | The pick that is genuinely under $100 (the trusted Korad linear supplies edge just over budget). |
| Quieter (just over $100) | Korad KD3005D | A linear 30V/5A supply that runs a bit cleaner and quieter than a switching unit, ideal for analog or RF work. It usually sits just over $100, so pick it if low noise matters more than staying strictly under budget. |
| Cheapest | Wanptek / Kungber Bench Supply | A bare-bones switching supply that still adjusts voltage and current with a display, for the lowest price. Fine for basic bench use; noisier and less refined than the Jesverty or Korad. |
What should you look for in bench power supply under $100?
A few things separate a good bench power supply under $100 from a frustrating one: adjustable v and a, current limiting, clear display, and linear vs switching. Weigh these before you buy.
- Adjustable V and A: fine control over voltage and current is the point.
- Current limiting: a constant-current cap protects your project from mistakes.
- Clear display: accurate voltage and current readout matters for real work.
- Linear vs switching: switching (Jesverty) is cheaper and under budget; linear (Korad) is quieter but usually just over $100.
How the picks compare on specs
| Spec | Jesverty SPS-3010 (pick) | Korad KD3005D | Wanptek (budget) |
|---|---|---|---|
| Output | 30V / 10A | 30V / 5A | ~30V / 10A |
| Type | Switching | Linear (quieter) | Switching |
| Display / extras | 4-digit + USB port | 4-digit + memory presets | Basic LED |
| Current limiting | Yes (CC/CV) | Yes (CC/CV) | Yes |
| Approx price | ~$75 | ~$110 (just over) | ~$50 |
What are the best alternatives?
Korad KD3005D
A linear 30V/5A supply that runs a bit cleaner and quieter than a switching unit, ideal for analog or RF work. It usually sits just over $100, so pick it if low noise matters more than staying strictly under budget.
Check price on AmazonWanptek / Kungber Bench Supply
A bare-bones switching supply that still adjusts voltage and current with a display, for the lowest price. Fine for basic bench use; noisier and less refined than the Jesverty or Korad.
Bottom line: the Jesverty SPS-3010 is the best bench power supply genuinely under $100; the Korad KD3005D is the quieter linear step-up just over budget, and a Wanptek is the cheapest route.
Frequently asked questions
What is the best bench power supply under $100?
Jesverty SPS-3010 Bench Power Supply. The pick that is genuinely under $100 (the trusted Korad linear supplies edge just over budget).
What should you look for in bench power supply under $100?
Focus on adjustable v and a, current limiting, clear display, and linear vs switching.
What is a good alternative to the Jesverty SPS-3010 Bench Power Supply?
The Korad KD3005D. A linear 30V/5A supply that runs a bit cleaner and quieter than a switching unit, ideal for analog or RF work. It usually sits just over $100, so pick it if low noise matters more than staying strictly under budget.
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This is a research-based buying guide, not a personal hands-on review; recommendations reflect community consensus and verified buyer reviews. Prices and availability are subject to change, so always confirm on Amazon. As an Amazon Associate I earn from qualifying purchases. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
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