Microtek Energy Efficient Automatic Voltage Stabilizers provide Protection to Air Conditioners (A.C.) against Voltage Fluctuations. All Microtek Stabilizers are based on Save Power Technology to give High Performance, Better Reliability during frequent Power Cuts and Voltage Fluctuations. Digital Display It comes with an advanced Seven Segment Digital Display. Screen is scrolling less than 20 Seconds showing Input and Output Voltage whole day. Wall Mounted Design This Stabilizer has an ergonomic Wall Mounting Design that makes it extremely easy to install. Auto Start The Unit woks automatically without any manual intervention. It automatically Steps Up and Steps Down Output Voltage according to A.C. Input Voltage to keep connected Appliance safe. Low & High Cut Off When the Input Voltage range goes beyond 150 V & 280 V, it automatically cuts the Grid Supply so that there is no harm to the Air Conditioner.