The 5500 Watt Diamond Series is built for people who need a voltage converter they can trust every day, not just occasionally. This Type 3 unit serves as a step down converter, step up unit, and a full-capacity voltage transformer for demanding appliances. It handles both directions, so it works as a 110 volt to 220 volts converter and also as a 110 volt to 220 volts transformer when your setup requires more flexibility.

The coil is built for long service life, and the unit uses heavy components instead of lighter shortcuts you see in cheaper transformers. That extra weight comes from real copper, not filler materials, and that’s why it runs cooler and more stable under load. At 5500 watts, it has enough capacity for strong household items, including things like toasters, kitchen machines, and even certain central A/C units when the wattage rules are followed.

The Diamond Series follows the basic rule every voltage converter should respect: the converter needs to be two to three times stronger than whatever you plug into it. With that margin, this model can handle long sessions without weakening or dropping voltage. It is also the reason it stays reliable for high-value or sensitive equipment.

The unit works anywhere in the world. It has a grounded USA plug, and it includes an adapter for 220-volt outlets so you can use it overseas without hunting for extra parts. It also features an extra-durable lifetime coil, a heavy-duty body for continuous operation, and fuse protection to guard against misuse.

Approved by various U.S. institutions, including branches of the military, the Diamond Series shows its value by lasting through years of moves, relocations, and long-term assignments. When you power it on, it simply does its job — steady voltage, no noise, no surprises.

For anyone who needs a strong step down transformer, a dependable voltage converter for international travel, or a long-term 110 volt to 220 volts converter for home equipment, the 5500 Watt Diamond Series is one of the safest options you can choose. 

Step Up and Down Voltage Converter

This Voltage Transformer Steps 220-240 Volts Down to 110-120 Volts, which means it works in ANY country with appliances from ANY country!

Fuse Protected Voltage Transformer for Your Safety

All of our Transformers are fuse protected for your safety and the protection of the 110 volt to 240 volt appliances which are connected to them.

Diamond Series Voltage Converter - 5 Year Warranty

All Diamond Series Converters come with a full 5 Year Warranty. These are simply the best transformers you can get for your appliances.

	Type 1 Good	Type 2 Better	Type 3 Best	Type 4 Better	Type 5 Best
	Without Regulator			With Regulator In some countries, the voltage fluctuates so much that it can damage electronics. These voltage transformers with built-in voltage stabilizers protect your valuable electronics.
Step Down Converter Converts electricity from 220/240 Voltage to 110/120 Voltage allowing the use of electric appliances designed for 220/240 volts to be used in countries with 110/120 volts electricity.	✔	✔	✔	✔	✔
Step Up Converter Converts electricity from 110/120 Voltage to 220/240 Voltage allowing the use of electric appliances designed for 110/120 volts to be used in countries with 220/240 volts electricity.		✔	✔	✔	✔
For Continuous Use	✔	✔	✔	✔	✔
Heavy Duty Design The Dynastar / International Diamond Series voltage transformers / converters are made with heavy duty extra durable lifetime rated coil. They are premium models superior to other models in the market. Made to Last, high end design, are Heavy Duty.	✔	✔	✔	✔	✔
CE Approved CE approved transformer.	✔	✔	✔	✔	✔
Fuse Protection Fuse Protection	✔	✔	✔	✔	✔
Recommended for High Value Items		✔	✔		✔
Circuit Breaker Protection The Dynastar / International Diamond Series voltage transformers have circuit breaker protection. This built in technology will turn the transformer off when connected to a electrical device that is too powerful for the transformer. When this triggers you can simply reset the transformer on models that are larger than 500 watts size, while on 500 watts and smaller a fuse needs to be replaced.			✔		✔
Extra Durable, Lifetime Rated Coil			✔		✔
Silent Operation Made with superior quality high end Transformer coils these transformers are made to be silent. Should not have any humming noises like many of the inferior model transformers.			✔		✔
Thermal Protection Thermal protection is a protection that gets activated by a fuse inside the transformer converter when it is too hot or overheats. This can happen sometimes when the transformer is overused or used on a appliances that is very close to the max watts of the transformer. We suggest to buy a transformer that is at least double the wattage so that this protection doesn’t activate. If you wil be using the transformer in a place that is hot, then try using a larger transformer then you normally would for that device. This protection will auto resolve when the transformer cools down.			✔		✔
Overload Protection			✔		✔
High Temperature Protection High temperature protection is a protection that is in the transformer that will activate the fuse or circuit breaker when the transformer reaches a high temperature. This feature activates when the temperature is too high. This can happen when the appliance or electronics used on the transformer are very close to the max watts and the transformer is overworked. Once it reaches a high temperature it will automatically shut down. This can be resolved automatically when it’s back to a normal temperature or by pushing the circuit breaker switch.			✔		✔
5 Year Warranty Backed by a 5 year best in class Limited warranty you can own these transformers with the peace of mind that you purchased a quality product that is made to last. Ultimately the best warranty is one that you will never have to use. We back our product with a long 5 year warranty knowing that our product, components, build quality, and workmanship are 2nd to none.			✔		✔
Universal Outlet Works Around the World			✔		✔
Designed & Engineered in the USA			✔		✔
Dynamic Design w/ Smart Circuitry			✔		✔
Recommended for Sensitive Equipment By using the highest quality transformer components, these voltage transformers protect your electronic appliances and equipment.			✔		✔
Built-in Voltage Regulator/Stabilizer In some countries, the voltage fluctuates so much that it can damage electronics. These voltage transformers with built-in voltage stabilizers protect your valuable electronics.				✔	✔
Limited Warranty	1 Year	1 Year	5 Years	1 Year	5 Years
Star Rating	4 Stars	4.5 Stars	5 Stars	4.5 Stars	5 Stars