Tonchean Transformer Converter Continuous Protection Review

【500W Step Up Transformer】 Input voltage 110V-120V will be able to use for origin 110V power supply (such as in US, Canada, Mexico) to 220V for EURO and Asia devices; If you have any issue,please feel to contact us. 【Double output 220V-240V】You can use 2 equipments with 220V rated simultaneously, just the total power not exceed the Max power 400W of the power converter transformer. 【Safety & Quiet】The step-up voltage converter is pure wave, and it is equipped with temperature control, lightning protection and short circuit protection.It is completely silent - no scary hum or buzz. The power button lets you know if it is on or not with a little light. It is also a nice shape and size to squeeze behind things like a large book. 【Notice】For safety reasons, it's recommended to use a voltage converter/transformer that's max watts is at least 80% higher than your appliance. For example; 500 Watt transformer can be only be used with an appliance that uses up to 400 Watts that is to prevent damage from the transformer itself and the appliance being used. 【Package Contents】Lightweight transformer 110v to 220v with ultra-thin ring-type transformer, slim, small. Size: 7.5 x 6 x 2.6inch. Light weight(6lbs).Please firstly confirm your item power and voltage before you purchasing our product.