Item Type: Step Up Buck Transformer Material: Iron, ABS, copper Rated Power: 300W Frequency: 50HZ/60HZ Current: 9A Operating Temperature: -5-40 Input Voltage: AC110-120V/AC220-240V(adjustable input voltage) Output Voltage: AC110V/AC220V Output Socket Type: One 110V-120V universal socket, one 220V-240V universal socket Uses: 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 on1PORTABLE AND PRACTICAL: Easy to carry, great for size and saves space. Multiple appliances can be used at the same time if the power supply permits 2MULTIFUNCTION VOLTAGE 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 3PROTECTION FUNCTION: Overcurrent protection, overload protection, overheat protection, short circuit protection, built in grounding protection 4HIGH EFFICIENCY AND RELIABLE: The use of copper with electrical conductivity higher than the other 50% utilization of transformer, the utilization rate is 80%?90% 5WIDELY USED: A wide range of applications 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 1 x Step Up Buck Transformer 1 x User Manual