SUPERNIGHT
DC Voltage Reducer Converter DC 8V-40V to 13.8V 10A 138W Power Converter
As an Amazon Associate, SpecPicks earns from qualifying purchases.
*Price sourced from Amazon.com. Last updated 2026-08-22. Price and availability subject to change.
Bottom line: The DC Voltage Reducer Converter DC 8V-40V to 13.8V 10A 138W Power Converter is a niche pick — read recent reviews before buying in the power protection category, priced around $21.99. Compare close alternatives before committing.
SpecPicks Verdict
SpecPicks scored DC Voltage Reducer Converter DC 8V-40V to 13.8V 10A 138W Power… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the power protection category. SUPERNIGHT's power protection lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.
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
- ✓ Backed by SUPERNIGHT'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
- Input Voltage: 12V/24V/36V nominal, accept(8V-40V) range; Output Voltage: DC 13.8V 10A 138W
- Adopt Synchronous Rectification Technology to improve conversion efficiency, Maximum Efficiency:≥95%; Ripple Wave: 50Mv; Starting delay time:≤2S
- Assembled with smart chip, features Over-current /Over-load /Low-load /Short-circuit /Over-heat intelligent protection, can work safely and reliable in -40°C~80°C range
- Compact aluminium shell with epoxy potting, 100% waterproof, anti-dust, anti-shock protection and better heat dissipation
Full Specifications
| Brand | SUPERNIGHT |
|---|---|
| Color | Grey |
| Plug Type | Type A |
| Unit Count | 1 Count |
| Model Number | B10-40-13 |
| Power Source | DC |
| Input Voltage | 12 volts |
| Output Voltage | 13.8 volts |
| Mfr Part Number | 8-40V/13.8V |
| Number of Items | 1 |
| Number of Outlets | 1 |
| Warranty Description | 2 Year Manufacturer |
Ready to buy?
DC Voltage Reducer Converter DC 8V-40V to 13.8V 10A 138W Power Converter is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-08-22. Price and availability subject to change.
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