A 1 ton 5 star AC is an air conditioner with a cooling capacity of 1 ton (12,000 British Thermal Units or BTUs) and a 5 star energy efficiency rating. The star rating is an energy efficiency rating system used in India to indicate the energy efficiency level of appliances like air conditioners, refrigerators, and washing machines.

A 5 star rated AC is highly energy-efficient and can help you save on your electricity bills in the long run. It is designed to consume less power while providing optimal cooling performance. The exact power consumption of a 1 ton 5 star AC may vary depending on the specific model and brand, but it should be significantly lower than a lower rated AC of the same capacity.

When choosing an air conditioner, it's important to consider factors such as room size, usage pattern, and budget. A 1 ton 5 star AC is suitable for a small to medium-sized room, typically up to 120 square feet in size. However, if the room is heavily exposed to sunlight or has high ceilings, you may need to consider a larger capacity AC.