difference between 2 star and 3 star AC?

ANSWER TO THE ABOVE QUESTION the difference is basically the eletricity consumption Start rating is given based on the eletricity usage of the machine. 2 Star AC costs less but consumes high eletricity 3 Star AC costs more than 2 star but consumes less eletricity on comparision. In the same way eletricity consumend decreases as the star rating of the machine (AC) increases with 5 star being the most energy efficient AC