Welcome to Quick 220® Systems

Diamond H Company LLC, doing business as Quick 220® Electrical Systems, was formed in Arizona in 1994 to develop equipment that produces 220-240 volts from 110-120 volt outlets.

Our 25th Year!

220-240 volts from 110-120 outlets

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About Voltages

Learn More About Voltages

220 volts, 230 volts and 240 volts are used interchangeably in North America to describe the same voltage range.
Similarly, 110 volts, 115 volts and 120 volts all describe the same voltage range.

Learn More About Voltages

Quick 220® Voltage Converting
Power Supplies

Voltage Converting Power Supplies

Power US, Canadian, or International
220-240 volt equipment
from 110-120 volt outlets.
Up to 20 amps or 4800 watts output.
Light weight, small, portable, easy to use.

Digital Volt Meter

Digital Volt Meter

Measure voltages with one hand
7 to 690 volts AC/DC
Light - less than 7 ounces
Continuity and phase rotation check

Power Cords

Power Cords

Extension Cord,
110-120V, 20A, 25 feet,
NEMA 5-20 plug and receptacle.

Power Strip 220 230 240 Volt
International Sockets

Power Strip 220 Volt International Sockets

Connect electrical equipment
from UK, Europe, Asia, North America, South America, Australia and Africa
to US/Canadian style
220/240 or 110/120 volt outlets.

Plug Adapters

Plug Adapter Cords

Adapter cord,
NEMA 5-15 plug
to NEMA 5-20 receptacle.

Welcome to Quick 220® Systems

For all residents of North America, most of the electronic devices we use on a daily basis are designed to accept 110v from the electrical system in our homes without the use of a voltage adapter. Though, if you've ever bought a heavy duty casement air-conditioner or a commercial-grade piece of equipment, you know that they need more power than a 110v outlet can provide.

The electric utility that supplies power in your neighborhood typically delivers power to your area at 220v. But, before it goes into your home, the power is split by a transformer outside into two separate conductors that have 110v and share a common neutral wire. This is called a three-wire split-phase system, and it’s in nearly every house, even yours. Though your voltage is split to 110v, a 220v outlet can be installed to supply larger items. However, if you don't have an available 220v outlet installed, this puts you in a tough spot when you need to run something on 220v.

You could hire an electrician to come out and install a 220v outlet, or you could purchase a transformer to act as a 110v to 220v voltage converter. But contractors can be a tremendous hassle, and a transformer is bulky and heavy. To make things worse, they're both incredibly expensive!

Isn't there an easier and cheaper way to combine the two phases back into one? There is! With a Quick220.com 110v to 220v voltage converter, you can create a convenient 220v outlet wherever you need. All you have to do is plug into each of the two phases in your home's electrical system. Our voltage converter does the rest. It even checks that the circuit is wired correctly first!

If you've ever needed a more convenient 220v outlet and don't want to pay through the nose to have one installed, the Quick220.com 110v to 220v converter is for you. Click the link and start browsing the different packages we offer. We guarantee there is one that is right for you!