This image shows a Microtek EM4160+ Automatic Voltage Stabilizer. 

Here's some information about this product:

Model: EM4160+. 

Capacity: Suitable for one AC unit up to 1.5 tons. 

Input Working Range: 160V-285VAC±5V, 50Hz. 

Output Voltage: Stabilized. 

Features: It includes an advanced seven-segment digital display, LED indicator, wall-mounted design, and auto-start technology. 

Protection: Offers under-voltage and over-voltage protection, along with a low and high cut-off feature. 

Intelligent Time Delay System: Manages power supply fluctuations and ensures proper balancing time for the connected appliance, especially the AC compressor, before restarting after a power failure.