501W+ Transformers Under $250

This high-end backup UPS power supply combines power outage protection and intelligent voltage regulation. It instantly switches to battery power during outages or voltage fluctuations, ensuring the safety of your equipment. With a wide input voltage range and precise automatic regulation, it delivers stable 120V±10% power to your devices. Built with imported precision components and integrated circuit design, it offers excellent performance and wide compatibility, suitable for both office and home appliances. The built-in surge protection provides peace of mind even during thunderstorms. Energy-efficient with long battery life, it helps reduce energy costs. The UPS automatically activates during power outages, preventing data loss and equipment damage. Stable and durable, it is a reliable guardian of your power needs.

3000W Step Up Down Converter Transformer:This new voltage converter transformer achieves 110V/220V bi-directional voltage conversion, applicable to most countries' voltage interchange, so you can bring domestic appliances and use them abroad. It has 8 outlets, supporting up to 8 devices connected to use simultaneously.

I love it and came on time. Leon. Apopka, FL. Sat Apr 11 2026

Specification： Type: Car Power Inverter Color: Red Frequency: 60Hz Product Dimensions: 200×112×56mm / 7.87×4.4×2.2 inches Material: PC + Flame-Retardant ABS Input Voltage: DC 12V Output Voltage: AC 110V Rated Power: 800W Peak Power: 4000W Conversion Efficiency: Approximately 95% Operating Temperature: 32°F (0°C) to 104°F (40°C) Package Contents： 1 × User Manual 1 × Pair of Car Battery Clamps 1 × Power Inverter 1 × Cigarette Lighter Adapter

Light weight amd prak power s h ould be 2000 or less. The pirce xame with a screw missing. Hopefully i can get a replacement. Fidel. Thu Oct 01 2026

110V to 220V step-up voltage converter, for 220V electric appliances to be safely used in the US. It can be used for various electrical appliances with an output of 220V-240V, such as hair dryers, cooking machines, rice cookers, and a series of electrical appliances that need to be converted to voltage. Specification: Material: Retardant Iron Voltage Conversion: Step-up only Input voltage: 100V-120V Output voltage: AC 220V-240V Electricity converter rate (approx.): 95% Theoretical rated power (approx.): 3000W max. Suggested using power (approx.): <2700W

Works great.. Rrezarta. Denton, TX. Thu Aug 31 2023

This transformer can transfer the voltage from 110V to 220V or 220V to 110V. It has overload protection, so you don't have to worry about safety issues caused by overload.This step-up/down transformer provides you with a safe, reliable, economical and convenient solution for voltage conversion.

Great item and timely delivery.. Kokou Dogbe. Lagrange, IL. Tue Apr 01 2025

5000W peak power—packed with performance! This car inverter easily converts 12V to 110V, compatible with both cars and trucks, perfect for camping and emergencies. Featuring 3AC+3USB+Type-C multi-ports, one device charges all—say goodbye to battery anxiety. Includes both cigarette lighter plug and battery clamps, flexibly adapting to different scenarios. Smart LCD screen monitors voltage in real-time, while multiple safety protections ensure worry-free use. From phones and laptops to camping appliances—this one's got you covered! The ideal car companion for outdoor enthusiasts!

This high-end backup UPS power supply combines power outage protection and intelligent voltage regulation. It instantly switches to battery power during outages or voltage fluctuations, ensuring the safety of your equipment. With a wide input voltage range and precise automatic regulation, it delivers stable 220V±10% power to your devices. Built with imported precision components and integrated circuit design, it offers excellent performance and wide compatibility, suitable for both office and home appliances. The built-in surge protection provides peace of mind even during thunderstorms. Energy-efficient with long battery life, it helps reduce energy costs. The UPS automatically activates during power outages, preventing data loss and equipment damage. Stable and durable, it is a reliable guardian of your power needs. Specification： Type: UPS Power Supply Rated Load Capacity: 1200VA/720W Input Voltage: 140-265Vac (activates battery inverter output when exceeded) Output Voltage: 120V+10% (battery mode) Transfer Time: 4-8ms Output Waveform: Simulated Sine Wave Noise: Less than 40dB Dimensions: 365×140×150mm Weight: 5.7KG Charging Time: 6 hours to 90% capacity Operating Environment: 0-90% humidity and 0-40°C temperature

The power flickered just a few days after and it kept my work pc on.. Lala. US. Fri Aug 21 2026

Durable car power inverter for road trips, vacations, outdoors, emergency kits and more for your vehicle. This car power inverter features 2 USB ports and 110V AC outlets, great for charging string lights, laptop, breast pump, neutralizer, game console, kindle, DVD players, lights, and other electronic devices. This power inverter has Reverse input protection, High input voltage shutdown, Low input. -Voltage shutdown, Over temperature protection, Short circuit protection, Overload protection. Perfect for TV, DVD player and other home appliances. A must-have for your road trips, vacations, outdoors, emergency kit and more. Specification: Type: Car Converter Power Inverter Color: Black Material: PC + Flame-retardant ABS Input Voltage: DC 12V Output Voltage: AC 110V Rated power: 800W Peak power: 4000W Frequency: 60Hz Conversion Efficiency: About 95% Working Temperature: 32°F (0°C) - 104°F (40°C) Low pressure protection: Yes High voltage protection: Yes Overtemperature protection: Yes Overload protection: Yes Output short-circuit protection: Yes Net Weight: 550g Size: 200*112*56mm / 7.87*4.4*2.2inch

This is a 3000W USB voltage transformer. Input Voltage: 110/220V/AC selectable Output Voltage: 110/220 V/AC, 5V/DC USB Power Cord Length: 3ft 36H Shipping. Note: For safety, it’s recommended by the manufacturer that the voltage transformer’s maximum power should be equal to or greater than the power rating of your appliance multiplied by 2.5. For example, if you have an appliance rated at 100 watts, you will need to pick a transformer with a maximum power of 250 watts or greater. The power of our transformer must be 2.5 times larger than the buyer's appliance to be used normally.

Works a treat.. Jayka B. Wed May 13 2026

This high-end backup UPS power supply combines power outage protection and intelligent voltage regulation. It instantly switches to battery power during outages or voltage fluctuations, ensuring the safety of your equipment. With a wide input voltage range and precise automatic regulation, it delivers stable 120V±10% power to your devices. Built with imported precision components and integrated circuit design, it offers excellent performance and wide compatibility, suitable for both office and home appliances. The built-in surge protection provides peace of mind even during thunderstorms. Energy-efficient with long battery life, it helps reduce energy costs. The UPS automatically activates during power outages, preventing data loss and equipment damage. Stable and durable, it is a reliable guardian of your power needs.

2500W Sump Pump Battery Backup:With a 2500W output, smart LCD display, 22.7A operating current, and the ability to support two pumps simultaneously, our sump pump battery backup inverter ensures your basement stays dry in any weather or blackout. Invest in peace of mind with today!

Anonymous. Thu Mar 26 2026

2000W Step Up Down Converter Transformer:80% Maximum Load & Output Voltage Display & Portable Design

Great item love it. Dee. NJ. Thu Mar 19 2026

This 16000W Car Power Inverter can be widely used, compatible with most electrical appliances, ideal for home electricity, office electricity, cars, electric vehicles, etc. and also suitable for vacation, work, travel, indoor or outdoor emergencies. And the safe charging technology can prevent the machine from overheating, reverse connection, under voltage, over voltage, overload and short circuit. Fast charging, lightweight and simple to use!

4 KW Variable Frequency Drive：This VFD converter can be used for constant torque loads (such as hard starting: Air compressors, HVAC units) and variable torque loads (such as pumps, fans, etc.). In addition, it can be used as a motor speed control and a phase converter. The input for this VFD is 1 or 3 phase, and the output is 3 phase. You can control the different speeds you like when you use this VFD. This item uses Sine wave PWN(SVPWM) for the control system and performance excellently. It also has passed CE certification.

I bought this to run my iron worker because I didn’t have 3 phase electric. My shops single phase . The directions are decent. I wish someone would make a video on how to adjust the settings that’s the only confusing part . I need 60HZ but my machine is working on the factory 50hz setting so for now that’s where it’s gonna stay. I had to bypass the factory control board & wire it directly to the motor. Works great so far . A YouTube video on this would be a lot of help but I couldn’t find one for my application. I am happy with it :). Josh. Wed Feb 15 2023

3000 Watts Power Converter 3000Watt Voltage Converter Transformer. This is powerful enough to run two hair driers simultaneously110V 120V 220V 240V Step-Up/Step-Down Conversion Two-way power conversion, 110 to 220, or 220 to 110 US & Int'l Outlets Comes with 2 US Outlets and 2 Universal Outlets for worldwide use. Equipped with Resettable Circuit Breaker Protection.

The converter is malfunction. Sigismond. US. Mon Oct 07 2024

Durable car power inverter for road trips, vacations, outdoors, emergency kits and more for your vehicle. This car power inverter features 4 USB ports and 110V AC outlet, great for charging string lights, laptop, breast pump, neutralizer, game console, kindle, DVD players, lights, and other electronic devices. It has Reverse input protection, High input voltage shutdown, Low input. -Voltage shutdown, Over temperature protection, Short circuit protection, Overload protection. Perfect for TV, DVD player and other home appliances. A must-have for your road trips, vacations, outdoors, emergency kit and more. Specification: Type: Car Converter Power Inverter Color: Black Material: Aluminum Alloy Input Voltage: DC 12V/24V Output Voltage: AC 110V Peak power: 6000W Frequency: 60Hz Conversion Efficiency: About 95% Working Temperature: 32°F (0°C) - 104°F (40°C) Low voltage alam: dc10v-11v Low voltage closing voltage: dc10v+ -2v Net Weight: 830g Size: 255*105*55mm / 10*4.13*2.2inch

I think it's a good inverter but, is it really 6000 watts? When you get it and read the paperwork it goes up to 5000 and for that I gave it 4 stars. It does work good. For the price and what I'm going to use it for I'm just going to keep it.. Anonymous. US. Wed Sep 30 2026

If you are troubled by situations such as poor safety performance of electrical appliances, frequent tripping due to unstable voltage, or electrical appliances brought back from abroad that cannot be used normally, then you should get our voltage transformer that can effectively realize a voltage switch between 220V and 110V. It has the advantages of high durability and stable performance. With multiple sockets, it is widely applicable for various appliances.

Great buy. It is big and believe it will serve my needs very well in Africa. It’s one of the best purchases that I’ve made.. Evelyn. Bronx, NY. Tue Nov 05 2024

This high-end backup UPS power supply combines power outage protection and intelligent voltage regulation. It instantly switches to battery power during outages or voltage fluctuations, ensuring the safety of your equipment. With a wide input voltage range and precise automatic regulation, it delivers stable 120V±10% power to your devices. Built with imported precision components and integrated circuit design, it offers excellent performance and wide compatibility, suitable for both office and home appliances. The built-in surge protection provides peace of mind even during thunderstorms. Energy-efficient with long battery life, it helps reduce energy costs. The UPS automatically activates during power outages, preventing data loss and equipment damage. Stable and durable, it is a reliable guardian of your power needs.

The 16000W high-performance car power inverter is your all-in-one power companion for life on the go! Featuring an advanced conversion system, this inverter efficiently transforms 12V DC power into stable 110V AC power, with a peak output of 16000W, effortlessly powering car refrigerators, laptops, small appliances, and more. Equipped with dual smart temperature-controlled cooling fans and an HD LCD screen, it allows real-time monitoring of operational status for safe, long-lasting performance. Complete with nine-layer safety protection including overload, short circuit, and reverse polarity protection, your devices are fully safeguarded. Whether for road trips, outdoor camping, or emergency home use, this portable power station ensures stable electricity anytime, anywhere, bringing modern convenience to your life.

If you are troubled by situations such as poor safety performance of electrical appliances, frequent tripping due to unstable voltage, or electrical appliances brought back from abroad that cannot be used normally, then you should get our voltage converter that can effectively realize voltage switching from 100-120V to 220V. It has the advantages of durability and stable performance and is widely applicable to various appliances.

This converter is perfect. It does not make a noise and can handle even coffee machines... Rrezarta. Denton, TX. Thu Aug 31 2023

Low voltage landscape lighting transformer with a stainless steel case and single slipped door. 600 Watt Magnetic transformer that converts 120 volt AC to 12 volt AC to be used for landscape lighting. Voltage output taps are 12V, 13V, 14V, and 15V. Rated for outdoor use, comes with a photocell adapter. Knockouts are located on the side. There is a plugin.

Great product at a great price!!! Super Fast Shipping and well packed!!!. Kevin. Daytona Beach Fl. Thu Dec 11 2025

Want to charge your phone, tablet, and laptop anytime, anywhere? This 300W (600W Peak) car inverter is your mobile power station! It instantly turns your car’s 12V battery into 110V home electricity—perfect for running small fans, mini fridges, and more! Equipped with 2×110V AC outlets + 4×25W fast-charge ports (USB + Type-C), everyone in the car can charge at once—even your dash cam and air purifier can stay connected! The hidden wiring terminals look sleek and come with anti-shock caps, making it safe for the whole family. Plus, it features multiple safety protections (overload/short circuit/reverse connection/overheat auto-shutdown)—like an “insurance lock” for your devices! With a stylish shell and portable size, it's the perfect travel companion for road trips, camping, and emergencies. Get ready to power up and go! Specification： Type: Power Inverter Peak/Surge Power: 600W Continuous Power: 300W Input Voltage: 12V DC Output Voltage: 110V AC USB1 + USB2 Output: 5V 4.8A (25W max) Type-C1 + Type-C2 Output: 5V 4.8A (25W max) No-Load Current: ≤0.5A Protection Functions: Overload, Overheat, High/Low Voltage, Reverse Polarity, Short Circuit. Suitable for devices under 300W/600W (excluding inductive loads & motor-driven appliances). Product Dimensions: 6.5×4.2×2.76 in

Digital Phase Shifter:2HP digital phase converter precisely converts single-phase power into 3-phase power, providing efficient and reliable 3-phase power solutions for diverse equipment. Compact, easy installation and energy-saving. Enhance equipment performance now and enjoy a more stable power supply.

1500W Pure Sine Inverter:This 1500W pure sine wave inverter offers USB, AC, and Type-C ports with fast charging to power multiple devices. With a 9.8ft/3m wired remote, smart cooling fan, and aluminum housing, it's ideal for outdoor use or as a reliable home emergency power solution.

30A MPPT Solar Charge Controller:Our solar charge controller is designed with MPPT technology for high-efficiency charging. It is suitable for a wide range of small solar power stations. The built-in Bluetooth module is convenient for monitoring device operation data and status.

3 KW Variable Frequency Drive:This VFD converter can be used for constant torque loads (such as hard starting: Air compressors, HVAC units) and variable torque loads (such as pumps, fans, etc.). In addition, it can be used as a motor speed control and a phase converter. The input for this VFD is 1 or 3 phase, and the output is 3 phase. You can control the different speeds you like when you use this VFD. This item uses Sine wave PWN(SVPWM) for the control system and performance excellently. It also has passed CE certification.

2.2KW, 10A, 3HP VFD:2.2KW, 10A, 3HP VFD provides precise motor speed control via accurate frequency and amplitude of motor drive current. With easy wiring, a user-friendly panel, and a soft start/stop, it simplifies operations, enhances energy efficiency, and minimizes machinery faults.

2500W Pure Sine Wave Power Inverter:Are you ready to confidently power up your electronics? This pure sine wave inverter is highly recommended for sensitive electronic equipment that requires cleaner AC power to operate effectively. Clear LCD display, intelligent cooling fan, and multiple protections provide reliable power conversion in a compact size and high efficiency. It allows you to power up multiple devices such as laptops, fans, fridges, microwave ovens, notebook computers, switching power supplies, coffeemakers, etc. Let's power it up together!

3500W Pure Sine Wave Power Inverter:Are you ready to confidently power up your electronics? This pure sine wave inverter is highly recommended for sensitive electronic equipment that requires cleaner AC power to operate effectively. Clear LCD display, intelligent cooling fan, and multiple protections provide reliable power conversion in a compact size and high efficiency. It allows you to power up multiple devices such as laptops, fans, fridges, microwave ovens, notebook computers, switching power supplies, coffeemakers, etc. Let's power it up together!

Stephen. Wed Jul 16 2025

1.5KW, 7.5A, 2HP Variable Frequency Drive:The input of the variable frequency drive is single-phase 220V (1PH) or three-phase 220V (3PH), and the output is three-phase 220V (3PH). With easy wiring, intuitive display, and comprehensive protections, it simplifies operations, enhances energy efficiency, and minimizes machinery faults.

Battery Charger, for 12V (12.8V) LiFePO4 Batteries:Ideal for RV campers, boaters, and solar energy users. Our charger delivers 14.6V DC output voltage and 40A/80A charging current, fully charging a 150Ah battery in just 2 hours. With a three-stage intelligent charging curve and 0V activation function, it easily wakes up deeply discharged batteries.

2500W DC12V to AC120V Modified Sine Wave Inverter:This modified sine wave inverter features an aluminum alloy shell, LCD screen, LED indicator, intelligent cooling fan, multiple protection measures, and LCD remote controller. Our power inverter transforms DC power into AC power, widely used for Emergency, Camping, Car, Home, RV, Solar. It is suitable for powering larger devices such as home appliances, power tools, like a blender, refrigerator, etc.

2000W Pure Sine Wave Power Inverter：Our sine wave power inverter features multiple interfaces to power up to 5 devices simultaneously. With advanced 6 security protections and an intelligent cooling fan, enjoy peak performance and stable operation. Perfect for any setting – home, outdoors, or the office. Power Up, Worry Down!

1000W Modified Sine Inverter: This 1000W modified sine wave inverter comes with USB, AC, and Type-C ports with fast charging to power multiple devices. Equipped with a smart cooling fan and aluminum housing, it is ideal for outdoor use or as a home emergency power solution.

Not as pictured, never used. Jmc. Sat Jun 06 2026

4000W Modified Sine Inverter: This 4000W inverter features USB, AC, and Type-C ports with fast charging to power multiple devices at once. It includes a clear LCD display for real-time monitoring.It comes with an RF wireless remote control for easy operation, along with a smart cooling fan and aluminum housing, making it ideal for outdoor use or as a home emergency power solution.

Bernardita Andrea. Arlington, VA. Tue Aug 04 2026

7.5KW, 34A, 10HP VFD:7.5KW, 34A, 10HP VFD provides precise motor speed control via accurate frequency and amplitude of motor drive current. With easy wiring, a user-friendly panel, and a soft start/stop, it simplifies operations, enhances energy efficiency, and minimizes machinery faults.

2500W Sump Pump Battery Backup：Experience the reliability and efficiency of the 2500W Sump Pump Battery Backup. Equipped with a powerful 2500W output, this backup inverter guarantees a dry basement even during severe weather conditions or blackouts. Its smart LCD display provides real-time information, allowing you to monitor the system effortlessly. With an operating current of 22.7A, it can support two pumps simultaneously, ensuring maximum performance. The quick plug feature makes installation a breeze, saving you time and effort. Safety is our top priority, and this backup inverter is designed to prioritize security. Additionally, it offers lightning-fast charging, ensuring that your backup power is always ready when you need it. Invest in the peace of mind that comes with the 2500W Sump Pump Battery Backup today!

Gary. Sat Jul 26 2025

4 KW Variable Frequency Drive:This VFD converter can be used for constant torque loads (such as hard starting: Air compressors, HVAC units) and variable torque loads (such as pumps, fans, etc.). In addition, it can be used as a motor speed control and a phase converter. The input for this VFD is 1 or 3 phase, and the output is 3 phase. You can control the different speeds you like when you use this VFD. This item uses Sine wave PWN(SVPWM) for the control system and performance excellently. It also has passed CE certification.

3 Phase Converter - 2HP 7A 220V Single Phase to 3 Phase Converter, 220V Input/Output, Digital Phase Shifter for Residential and Light Commercial Use (One Converter for One Motor Only) Simple Wiring Connection Wide Applications High Performance Small in Size, Light in Weight Energy-Saving Accurate Power Transformation Maximum Current: 7A,Item Model Number: CPS-2HP,Frequency: 50/60Hz,Input Voltage: Single-phase 220 - 240V,Horsepower Range: 1 - 2HP (1.5KW),Product Dimensions: 7.4 x 4.1 x 5.2 in / 187 x 105 x 133 mm,Output Voltage: Three-phase 220 - 240V,Net Weight: 2.11 lbs / 0.96 kg

2000W DC12V to AC120V Modified Sine Wave Inverter:This modified sine wave inverter features an aluminum alloy shell, LCD screen, LED indicator, intelligent cooling fan, multiple protection measures, and LCD remote controller. Our power inverter transforms DC power into AC power, widely used for Emergency, Camping, Car, Home, RV, Solar. It is suitable for powering larger devices such as home appliances, power tools, like a blender, refrigerator, etc.

2.2KW, 10A, 3HP VFD:2.2KW, 10A, 3HP VFD provides precise motor speed control via accurate frequency and amplitude of motor drive current. With easy wiring, a user-friendly panel, and a soft start/stop, it simplifies operations, enhances energy efficiency, and minimizes machinery faults.

20/30/50A RV Power Outlet Box：The RV power outlet box is made of high-quality materials, while the outlet and circuit breaker are tested to UL standards, waterproof, and dustproof, allowing you to charge your RV or car with more confidence and security, whether it's raining or exposed to the sun!

Digital Phase Shifter:2HP digital phase converter precisely converts single-phase power into 3-phase power, providing efficient and reliable 3-phase power solutions for diverse equipment. Compact, easy installation and energy-saving. Enhance equipment performance now and enjoy a more stable power supply.

Low Voltage Landscape Transformer:Our landscape lighting transformer is suitable for low voltage outdoor lighting, landscape lighting, lawn lighting, garden lighting, and more, providing stable and secure voltage and current levels. low voltage outdoor transformer is all you need to enjoy long-lasting landscaping lights.

Easy to install. Myrna. Creemore, ON. Tue Jul 07 2026

2000W Sump Pump Battery Backup:With a 2000W output, smart LCD display, 18.2A operating current, and the ability to support two pumps simultaneously, our sump pump battery backup inverter ensures your basement stays dry in any weather or blackout. Invest in peace of mind with today!

Anonymous. Wed Apr 30 2025

2000VA Variable Voltage Transformer：Transform your voltage with precision and peace of mind! Our variable voltage regulator offers a 0-130V adjustment range, fuses, a thermal control switch, a resettable overload protector, and certification, delivering a steadfast power supply.