【AC POWER SUPPLY ADJUSTABLE】- This is a brand new variable transformer. Input is single phase 110V AC, 60 Hz, output voltage can be adjusted from 0 to 230V AC. Maximum power rating is 2000 VA. | 【HIGH QUALITY COOPER COIL】- The voltage transformer is constructed with built-in copper coil for durability and high efficiency. | 【COMPACT & HIGH ACCURACY】- Featuring clear voltage output meter, and precise metal pressure gauge, the variable transformer is designed with high grade accuracy and compact for easy transport. | 【SAFETY PROTECTION】- Featuring a high accuracy, reliability and perfect limit current protection, thermal protection, voltage overload protection, short-circuit protection. A grounding port designed onto the device for much more stable and secure protections. One power plug is available. | 【WIDE APPLICATION】- Widely used for motor speed control, label printing machine, labs, test for railroad switching, power supplies, satellite, equipment, telecommunication equipment, ect.