Feature 1 PORTABLE AND PRACTICAL: Machine has a handle at the top, easy to carry, great for size and saves space. Multiple appliances can be used at the same time if the power supply permits 2 MULTIFUNCTION CONVERTER: This voltage converter is used to change the voltage, from 110 volts to 220 volts, and can also convert the voltage from 220 volts to 110 volts 3 PROTECTION FUNCTION: Come with overcurrent protection, overload protection, overheat protection, short circuit protection, built in grounding protection 4 HIGH EFFICIENCY: The use of copper with electrical conductivity higher than the other 50% utilization of transformer, the utilization rate is 80%90% 5 WIDELY USED: Suitable for scientific laboratory, industrial and home electrical equipment, such as hair dryer, juicer, rice cooker, air purifier, toilet lid, electric kettle and so onItem Type: Step Up Buck TransformerMaterial: Iron, ABS, copperRated Power: 500WFrequency: 50HZ/60HZCurrent: 9AOperating Temperature: -5-40Input Voltage: AC110-120V/AC220-240V(adjustable input voltage)Output Voltage: AC110V/AC220VOutput Socket Type: One 110V-120V universal socket, one 220V-240V universal socketUses: Widely used and suitable for scientific laboratory, industrial and home electrical equipment, such as hair dryer, juicer, rice cooker, air purifier, toilet lid, electric kettle and so on Package List1 x Step Up Buck Transformer1 x User ManualNoteDirect installation and use.