my personal view for better result of using inverter, it means u only save energy if u open the aircon for more than 8 hours...if you notice normal aircon, after some time, it will kick start the aircon to more power, i think inverter tech is to control that...

if you using aircon for few hours per day, inverter or not doesnt help you and if you alwayz on off the aircon, the bill is higher due to when u start the aircon, it consumes alot of power...

correct me if im wrong...