Stop wasting money on dirty, unstable electricity
StopWatt gives your home a smooth, stable electrical current — increasing efficiency, reducing dirty electricity, and gently lowering your energy bill over time.
Get Up To 65% Off StopWatt Offer available for a limited time · 60-Day Money-Back Guarantee
Stabilize your current, remove dirty electricity, and lower your power bill
StopWatt provides your home with a smooth, stable electrical current that leads to an increase in efficiency, a reduction in dirty electricity, less wasted power, and dramatically lower energy consumption.
Get Up To 65% Off StopWattBenefits of StopWatt
Everything StopWatt quietly does behind the scenes to protect your home.
Quickly Stabilize Your Current
Easily stabilizes your home's electrical current for smoother, more efficient power delivery.
Cleaner Power Lines
Cleans power lines and reduces electric temperature across your home's wiring.
Reduces Dirty Electricity
Reduces harmful dirty electricity from your home for a cleaner electrical environment.
Reactive Power Compensation
Delivers on-the-spot reactive power compensation as electrical demand changes.
Absorbs Harmonic Waves
Absorbs harmonic waves and buffers electric current shocks before they reach your devices.
Easy, Maintenance-Free
Easy to install with no maintenance required — plug in and it goes to work.
Safe in Any Home
Safe, reliable, and works in any home or business with electricity.
Protects Your Appliances
Protects and prolongs the life of your appliances and electronics.
How it works
Three gentle mechanisms that clean and stabilize your home's power.
Stabilizes the power
With Electricity Stabilizing Technology (E.S.T.), StopWatt straightens the unstable electric current and delivers a constant, smooth output.
Eliminates shocks & surges
Advanced capacitors eliminate harmful spikes of electricity, preventing damage to your appliances and electronics.
Reduces dirty EMF
A built-in magnetic filter removes carbon from the electrical circuit, reducing your exposure to harmful EMF/EMR.
Get started in 3 easy steps
Stabilizing your electricity is as simple as 1, 2, 3.
Plug in your device
For one device, find a location close to your breaker box. For multiple devices, install each on a separate breaker.
Confirm it's working
The green light illuminates when the device is plugged into an active outlet and begins filtering the current.
Filter, stabilize & save
The average home takes 2-3 weeks to stabilize. Allow up to 6-8 weeks to see full results.
Customer reviews
Read what our customers have to say about StopWatt.
"I'm so surprised by the amount we saved with these StopWatt devices… literally, you just plug them in and that's it! We'll be customers for life."
"In the first month, we saved $33. The second month, $45. The third month, $52. Fourth month, $55. If that isn't a strong testimonial, I'm not sure what is."
"If you're skeptical, I feel sorry for you. I'm not entirely sure how it works, but the savings are real."
"I ended up buying 3 of these — kitchen, bedroom, living room. After six months, we're easily saving at least $50 per month."
Questions? We've got you covered
Will StopWatt work in my state?
Absolutely. StopWatt is approved and helps stabilize electricity in all 50 states, including Hawaii and Alaska.
Will it work in my home?
Yes. StopWatt works in any home or business with electricity, including condos, offices, bungalows, and trailers.
Is it safe to leave StopWatt plugged in?
Absolutely. StopWatt is the only power factor device that is both UL approved and RoHS compliant, making it the safest power factor product on the market.
How many units do I need?
To achieve maximum EMF filtering results, install 1 StopWatt for every 800–1,200 sq. ft. of space. Using more than recommended will not increase results.
What happens if the power goes out?
Not to worry — you won't have to filter the entire home again. As long as your StopWatt stays plugged in, it continues filtering as soon as power comes back on.
Can StopWatt be used with a solar power system?
Yes, there are no safety issues using StopWatt with solar systems. Results may vary, and you're covered by the 60-day money-back guarantee either way.
Is StopWatt legal?
Yes. Now that the Residential Energy Stabilization (RES) law has passed, power factor devices and EMF filters such as StopWatt are legal in the USA.
What results can I expect?
Results vary based on home size, electricity usage, solar usage, location/climate, power company, and home age. Give StopWatt a full 2 months to filter electric pollution.
Where do I place/install my StopWatt?
For one unit, install it somewhere central, often near the breaker box. For multiple units, install them as far apart as possible, ideally at opposite ends of the home.
Is there a warranty?
Yes, all orders include a 1-year standard warranty. If your device breaks or stops working, contact support@stopwatts.com for a free replacement.
How long does it take to work?
Similar to an air or water filter, StopWatt takes approximately 3–4 weeks to fully filter dirty electricity. You're covered by the full 60-day money-back guarantee while you test it.
Does StopWatt work with 220V electrical systems?
Not at this time. StopWatt is currently only compatible with 110V North American electrical systems. A 220V version is in development.
What is the Power Saving Guarantee?
If after 60 days you haven't saved enough in electricity to cover the cost of your purchase, you'll receive a 100% refund, including shipping costs — no questions asked.
Ready to stop wasting money on dirty electricity?
Join thousands of homeowners already saving with StopWatt, backed by a 60-Day Money-Back Guarantee.
Get Up To 65% Off StopWatt