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StopWatt

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StopWatt frequently asked questions

Everything buyers ask most often, answered plainly by the official store.

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Quick answer

It is a plug-in power-factor correction device. Internal capacitors supply part of the reactive current used by motor-driven appliances, which reduces current in the nearby wiring.

Quick answers

  • Ships free worldwide, dispatched in 1–2 business days.
  • 60-day money-back guarantee on the purchase price.
  • Plug-in only — no tools, wiring or app.
  • One unit per 800–1,200 sq ft is the usual guidance.
60DAYS

60-Day Money-Back Guarantee

Test StopWatt for a full billing cycle. Return it within 60 days of delivery for a refund of the purchase price.

Issued by the official StopWatt store · Refund of the purchase price

Frequently asked questions

What exactly does StopWatt do?
It is a plug-in power-factor correction device. Internal capacitors supply part of the reactive current used by motor-driven appliances, which reduces current in the nearby wiring.
Will it lower my electricity bill?
We do not promise a savings figure. US residential meters bill real power in kWh, so any bill impact comes from reduced in-home losses and varies by home. Test it for a billing cycle and return it within 60 days if you are not satisfied.
How many devices do I need?
Roughly one per 800–1,200 sq ft, with extra coverage near large motor loads and on each floor.
How long does worldwide shipping take?
Orders leave our warehouse in 1–2 business days. Delivery typically takes 3–7 business days in the USA and 7–15 business days internationally, with tracking emailed on dispatch.
Which countries do you ship to?
We ship worldwide, and shipping is free to every destination we serve. Any import duties or taxes charged by your country are the recipient's responsibility.
How do I return an order?
Email support within 60 days of delivery with your order number and we will send return instructions.
Is my payment information safe?
Yes. Checkout is handled by an encrypted PCI-compliant payment provider embedded on our page. We never receive your full card number.
Is there a warranty?
Defective units are replaced free within the guarantee period. See the warranty page for details.

Keep reading on the official StopWatt site

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Pick the bundle that matches your home size, then complete your order securely on this page — no redirects, no account required.

Sizing rule of thumb: one device per 800–1,200 sq ft, so most homes over 1,500 sq ft use the 3-device bundle.

Checkout — 3 Devices

$105.84

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  • Charged onceOne-time payment, no subscription
  • Dispatch1–2 business days, tracked
  • 60 daysReturn for a refund, no questions
  • Real supportsupport@getstopwatt.net

Prices in USD. The bundle price shown is the full discount — there is no code to hunt for. Add-ons available only here: add 1 extra stopwatt and 3-year replacement protection.