Relay type, Single phase, LED digital display,aluminum coil,small dimension,small ... . Description of goods: Automatic /AC/single phase/avr/electrical/relay type/servo motor/SVC/energy saving/ Electrical /Voltage Stabilizer /voltage regulator ... / manostat/power supply/aluminum transformer 1. Relay type+aluminium transformer 2. LED digital disply 3. Input voltage range: 140-250V4. Output voltage ...