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 on Specification: Item Type: Step Up Buck Transformer Material: Iron, ABS, copper Rated Power: 500W Frequency: 50HZ/60HZ Current: 9A Operating Temperature: -5℃-40℃ 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 on. Package List: 1 x Step Up Buck Transformer1 x User Manual Note: Direct installation and use.