A regular AC switches its compressor fully on and off. An inverter AC slows it down instead, which uses far less power once the room is cool.
The numbers
Running a 1.5 ton AC for eight hours a night through a Dhaka summer, an inverter model typically saves 40 – 60% of the cooling cost — usually enough to cover the price difference within two summers.
Other benefits
- Quieter at night
- Steadier temperature
- Handles low voltage better