--- product_id: 576115789 title: "Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs)" brand: "copkim" price: "312 zł" currency: PLN in_stock: true reviews_count: 8 url: https://www.desertcart.pl/products/576115789-stop-watt-energy-saving-device-electricity-saving-box-power-saver store_origin: PL region: Poland --- # 30KW Power 90V-250V Compatibility Leakage Protection Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) **Brand:** copkim **Price:** 312 zł **Availability:** ✅ In Stock ## Summary > 🌍 Save Energy, Save the Planet! ## Quick Answers - **What is this?** Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) by copkim - **How much does it cost?** 312 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/576115789-stop-watt-energy-saving-device-electricity-saving-box-power-saver) ## Best For - copkim enthusiasts ## Why This Product - Trusted copkim brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Maximize Your Savings:** Transform your energy consumption with 6 powerful savers! - • **Versatile Application:** Perfect for all your home and office appliances. - • **Sleek & Stylish Design:** Elevate your space with a modern white and green aesthetic. - • **User-Friendly Experience:** Plug in and let the LED indicator show your savings in action! - • **Safe & Reliable Operation:** Enjoy peace of mind with built-in leakage protection. ## Overview The Stop Watt Energy Saving Device is a set of 6 efficient power savers designed to optimize energy consumption in homes and offices. With a voltage range of 90V-250V and a capacity of 30KW, these devices stabilize voltage and balance current to reduce energy waste. Their compact design and user-friendly operation make them ideal for various appliances, ensuring a safer and more efficient energy-saving experience. ## Description Full description not available ## Technical Specifications | Specification | Value | |---------------|-------| | Part Number | LIA-Copkim-327 | | Item Weight | 1.15 pounds | | Package Dimensions | 9.8 x 4.29 x 2.83 inches | | Item Package Quantity | 6 | ## Images ![Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) - Image 1](https://m.media-amazon.com/images/I/617b1q3GtmL.jpg) ![Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) - Image 2](https://m.media-amazon.com/images/I/7151QZ+-otL.jpg) ![Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) - Image 3](https://m.media-amazon.com/images/I/71BX1rotSKL.jpg) ![Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) - Image 4](https://m.media-amazon.com/images/I/71ycEPxRkcL.jpg) ![Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) - Image 5](https://m.media-amazon.com/images/I/81v1XjtfQjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ I think it's helping? *by J***N on February 26, 2025* I use the bill payer so I have an average monthly bill that is adjusted for usage every 6 months. I pulled up my account and my usage/bill has gone down on average $60 a month after installation of the devices. I don't know how or why but it's hard to argue with results. ### ⭐ TLDR it's a SCAM, also unsafe! *by P***M on February 20, 2024* I bought this pretty much knowing it was a scam, but I wanted to have the product in hand before giving a review. First thing I notice is that it is not UL listed. Yikes. That means if this thing catches fire and burns your house down, insurance won't pay out. Also notice it's quite lightweight. Big spark upon plugging it in, so that lack of UL certification is looking real good right now. It made no noise, a faint burning smell, and the LED on the front faintly lit up. So I unplugged it and decided it's time to open it up and see this groundbreaking technology they talk about in the listing. Luckily there is a screw under the sticker on the back, making opening the device easy. No surprise to me, there is no components inside that would do anything to change your electric bill. There is some basic components to step 120v down to run the LED light on the front and that's it. So in conclusion, confirmed scam, they are selling you a bulky dim night light and lying to you. It also is not safe, and if it starts a fire your insurance will not cover the damages due to a lack of valid UL certification. I will return this item now to get my money back. ### ⭐⭐⭐⭐⭐ They cut 50$ off everyone of my bills *by M***G on March 2, 2025* These work great I've had 20 of them for 3 years now ## Frequently Bought Together - Copkim Stop Watt Energy Saving Device Electricity Saving Box Power Saver Efficiency Energy Saver Device for Home Office Market Electric Machine US Plug 90V-250V 30KW(6 Pcs) - Kigley 8 Pcs Energy Saving Device, Electricity Power Saving Box, Household Stable Voltage Device and High Efficiency US Plug 90-250V 30KW for Home Factory Office - Wall Charger, Surge Protector, QINLIANF 5 Outlet Extender with 4 USB Charging Ports (4.8A Total) 3-Sided 1680J Power Strip Multi Plug Adapter Spaced for Home Travel Office (3U1C) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/576115789-stop-watt-energy-saving-device-electricity-saving-box-power-saver](https://www.desertcart.pl/products/576115789-stop-watt-energy-saving-device-electricity-saving-box-power-saver) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-07*