Voltage Converter 110V to 220V Company Claimed

The Voltage Converter shown in the link you posted should not be with electronic products, such as those mentioned by the OP. That type of Converter uses solid-state technology to reduce the voltage, rather than a Transformer and the output is not especially "clean". When connected to a solid-state product such as a Camera Charger, unfortunate consequences can occur!

Voltage Converter 110V to 220V Company is a leader among voltage converter manufacturer. Our main focus is creating the highest quality products. Voltage Converter 110V to 220V Company is an United States voltage converter maker located in Los Angeles. Our company concentrates on voltage converter design and voltage converter manufacture. The main products are 110v to 220v voltage converter, 220v to 110v voltage converter, step up voltage converter, step down voltage converter and so on.