The device that cools in summer and heats in winter — no installation, no wiring

Just plug it in and choose the mode. Comfort in your living room, bedroom or office in minutes.

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What our customers say

Real experiences from people who already use it every day

4.6

★★★★★

2,143 reviews

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Rachel ✔ Verified Buyer

★★★★★ 3 days ago

I don't usually leave reviews, but the results surprised me enough to share. Our electricity bill dropped noticeably within the first couple of months of using it.

Kevin H. ✔ Verified Buyer

★★★★★ 6 days ago

I'm so surprised by the amount we saved with this device, literally you just plug it in and that's it! My wife was shocked when we got our first bill after installing it.

Linda

★★★★☆ 9 days ago

I decided to buy three units, one for the kitchen, one for the bedroom, and one for the living room. Setup was simple and the results have been worth it.

David R. ✔ Verified Buyer

★★★★★ 12 days ago

I've tried several ways to reduce electricity costs, but none were as simple to use as this. Setup was quick, just plug it in and let it run.

Sandra D.

★★★★★ 15 days ago

I've always been cautious about adding new devices to my home. But this turned out to be worth it — my energy bills went down and the power feels more stable.

6 Key Benefits of StopWatt

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Reduces Power Waste

Helps cut unnecessary electricity loss at the source.

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Plug & Play

No tools, no wiring, no electrician required.

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Surge Protection

Helps shield appliances from voltage spikes.

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Lower Bills

Many users report noticeably lower monthly costs.

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Works Anywhere

Homes, apartments, offices, and RVs alike.

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Silent Operation

Works quietly in the background, zero maintenance.

How to Use StopWatt

Plug StopWatt into any standard outlet, ideally close to your main switchboard or breaker box.

Let the device run continuously — it works automatically with no setup, app, or technical knowledge needed.

Allow a few weeks for your home's electrical flow to stabilize, then track the difference on your next utility bill.

Frequently Asked Questions

Is StopWatt a legal device?▼

Yes. StopWatt is a plug-in power-factor device and does not require any special permit for residential use in the countries where it is sold.

Does a power outage affect StopWatt?▼

No. StopWatt simply resumes normal operation automatically once power is restored — no reset or reconfiguration needed.

Where should I install my StopWatt?▼

As close as possible to your breaker box for best results. For multiple units, spread them across separate breakers or floors.

How many units do I need for my home?▼

One unit typically covers a small home; for medium or large homes, using one unit per breaker or floor gives more consistent results.

Can I order StopWatt from Amazon or a retail store?▼

No, StopWatt is only sold through this offer to guarantee authenticity, current pricing and warranty coverage.

What is the warranty and return policy?▼

Every order is backed by a 60-day money-back guarantee, subject to the vendor's terms.

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100% Money-Back Guarantee — 60 DaysOrder your StopWatt with total confidence. If for any reason you're not satisfied within 60 days of your purchase, you'll receive a full refund.