Seloky
LM2596 Adjustable DC-DC Step-Down Buck Converter Module with LED Voltmeter Display, Voltage Regulator 4.0-40V Input to 1.25-37V Output Power Supply Module (Pack of 3)
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies LM2596 Adjustable DC-DC Step-Down Buck Converter Module with LED Volt… as a solid pick with broad community endorsement in the power protection category, based on 117 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Seloky's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power protection of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.4★ customer rating
- ✓ Backed by Seloky's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- LED Numeric Display: Buck converter equipped with an LED voltmeter display. The voltmeter has a measurement error of ±0.1V. The input voltage range is from 4.0V to 40V, and the output voltage range is from 1.25V to 37V(Note: If the input voltage is below 4V, the onboard voltmeter will not operate and no display will be shown). The voltmeter can be switched off by holding the switch for over 1 second and less than 4 seconds, then releasing it. Once the voltmeter is off, just press the switch briefly to turn it on
- LM2596 Adjustable Buck Converter: The internal oscillation frequency is 150KHz. It's a second-generation voltage regulator with low power consumption and high efficiency. It's equipped with high-quality solid capacitors to improve the stability and durability of the circuit and filter out high-frequency noise effectively
- Ease of Use: LM2596 adjustable buck converter can easily adjust the output voltage with a mini screwdriver. It comes with terminal blocks for quick connections, so you don't need to solder if you don't want to
- Features & Safety: The input side of the LM2596 buck converter is protected by two diodes. If you connect it backwards, it won't damage the module. It also has overheat and short-circuit protection. (For power over 15W, make sure to improve heat dissipation)
- Applications: The LM2596 buck converter works great in lots of different situations, like car power supplies, DIY projects, and industrial equipment. It's perfect for both pros and beginners
Full Specifications
| Brand | Seloky |
|---|---|
| Color | Blue |
| Plug Type | Type A |
| Unit Count | 3.0 Count |
| Model Number | SY070 |
| Power Source | DC |
| Compatibility | Switch |
| Input Voltage | 4 Volts |
| Output Voltage | 1.25 Volts |
| Item Dimensions | 5.9 x 4.7 x 0.6 inches |
| Mfr Part Number | SY070 |
| Number of Outlets | 3 |
| Item dimensions L x W x H | 5.9 x 4.7 x 0.6 inches |
Ready to buy?
LM2596 Adjustable DC-DC Step-Down Buck Converter Module with LED Voltmeter Display, Voltage Regulator 4.0-40V Input to 1.25-37V Output Power Supply Module (Pack of 3) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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