Inverter AC vs Non Inverter AC which is best ?

Inverter air conditioners allow users to change the tonnage as per the requirement which helps in power saving and more personalization.

What is ISEER rating in ACs?

It determines the energy efficiency of the AC. The amount of energy it saves during the summer season is depicted with the value. The more ISEER, the more savings.

Which AC brand is best for power saving?

LG, Daikin and Panasonic are some of the top AC brands with low power consumption models.

Should I Buy 3 Star or 5 Star AC?

The energy rating of an determines how much power it will be able to save in the long run. A 3 star AC offers slightly lower power saving than a 5 star AC which makes it the go to those that want lower electricity bills with the same cooling quality. Explore their differences with the best AC models in India from top air conditioner brands.

By : Rythum Chauhan
Last Updated on Apr 17, 2025 15:43 IST

3 and 5 star ratings are also called BEE rating, and they allow users to assess which AC is best for low electricity bills. Given by the Bureau of Energy Efficiency, it shows how many efficiency standards it has cleared and how much its annual power consumption is. The “More Stars More Savings” quote on every BEE label answers the question of which is better 3 Star or 5 star AC, but what about the AC price? The initial cost of the 5 star AC tends to be higher than the 3-star one, which makes users confused about which one to buy. Especially, if one is looking at the best AC brands in India, the cost tends to fall on the higher side since they include additional features and different types of inverters like Dual inverter, along with smart features. Let’s explore more details about different models from popular air conditioner brands for a better idea of what 5 star AC offers and how 3 Star AC differs in terms of energy use and price.

Best ACs to Save Energy In Summers: From LG, Daikin, Voltas, And More

Explore the top 3 and 5 star AC models from known air conditioner companies to save energy and low power bills in peak temperatures. Browse through their yearly energy consumption and ISEER rating to see which model suits your needs the most.

Top Five Products

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LG 1.5 Ton 5 Star DUAL Inverter Split AC
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Equipped with a Dual inverter compressor, this LG 1.5 ton AC is perfect for those who are looking for fast cooling and fewer manual settings. With AI mode among the 6 convertible modes, it senses the ambient temperature and the cooling need inside the room to make the necessary changes and deliver consistent cooling. Its ability to save power while offering the same amount of cooling has to be one of its appealing features. The high ambient temperature of 55°C and monsoon comfort mode make it one of the best AC in Kerala and other hot and humid places. Additionally, the smart diagnosis through the ThinQ app makes troubleshooting small and regular issues less time-consuming.
Specifications:
- Brand: LG
- Model: ‎US-Q19YNZE
- Capacity: ‎1.5 Ton
- Annual Energy Usage: ‎744.75 Kilowatt Hours Per Year
- Noise Level: ‎31 dB
Pros:
- AI Detection of Heat Load To Auto Adjust The Temperature
- Two Rotary Compressors For 6 Convertible Modes
- VIRAAT Mode For Rapid Cooling
Cons:
- No Voice Control
ISEER: 5.20
Energy Rating: 5 Star
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Voltas 1.5 ton 3 Star Inverter Split AC
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When looking for a low price AC from a renowned company, this Voltas 1.5 Ton AC 3 Star is mentioned amongst the top choices. Its 4 adjustable modes are enabled with the addition of a variable speed compressor so that the cooling capacity is more customizable based on the number of people in the room. Being a 1.5 ton split AC, it can easily cool down rooms that go up to 150 sq. ft. with its air flow. It has a microbial coating that removes the amount of germs and allergens in the air, and with the anti-corrosion coating on the coils, it's designed to last longer and lets users enjoy the cooling for years to come.
Specifications:
- Brand: ‎Voltas
- Model: ‎183V Vectra CAW
- Capacity: ‎1.5 Tons
- Annual Energy Consumption: 975. 26 kWh
- Noise Level: ‎38 dB
Pros:
- 4 Adjustable Modes For Accommodating the Number of People
- Corrosion-Resistant Copper Tubes For Long Lasting
- Works At 52° C For Areas With Heat Waves
Cons:
- No AI Mode
ISEER: 3.81
Energy Rating: 3 Star
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Panasonic 1.5 Ton 5 Star Wi-Fi Inverter Smart Split AC
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Panasonic AC lineup is known for having the best-rated smart ACs for modern homes. Their 1.5 ton air conditioner comes full of features that ease the manual work, like voice control through Alexa and Hey Google. Its main feature is the integration of Matter Enabled technology, which improves the controlling process with centralized settings in the MirAie App. Users can ensure that their sleep cycle stays undisturbed with the sleep profile function, which lets you schedule the settings for throughout the night. With the True AI mode, it handles all your guesswork about the surrounding temperature and takes the matter into its own hands with auto-adjusting based on the temperature at the moment.
Specifications:
- Brand: ‎Panasonic
- Model: ‎CS/CU-NU18AKY5WX
- Capacity: ‎1.5 Ton
- Annual Energy Usage: ‎759.55 Kilowatt Hours
- Noise Level: 34 dB
Pros:
- Matter Enabled For Simple Control Process Through App
- Voice Command For Hands Free Control
- Longer Air Flow For Bigger Rooms
Cons:
- None As Such
ISEER: 5.20
Energy Rating: 5 Star
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Daikin 1.5 Ton 3 Star Inverter Split AC
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Bringing their own technology in the mix, this Daikin 1.5 ton AC has an exclusive inverter swing compressor that ensures low vibration and quicker cooling. The body is designed to fan out the chilled air for 16 meters. Other than this, there is also the patented DNNS self-heal coating on the condenser coils. Along with that, the PM 2.5 filter ensures that the reduction of impurities is maximum and leaves no specks of dust particles, no matter the size. With the hepta sense, it’s able to calculate the amount of cooling required and makes changes according to which provides more convenience to the user. Through the power chill option, users can enjoy swift cooling after returning from the heat outside.
Specifications:
- Brand: ‎Daikin
- Model: ‎MTKL50U
- Capacity: ‎1.5 Tons
- Annual Energy Usage: ‎966.47 Kilowatt Hours Per Year
- Noise Level: 35 dB
Pros:
- Dew Clean Technology For Low Maintenance
- 3-Stage Filtration For Better Air Quality
- Triple Display For Temperature, Power Consumption, And Errors
Cons:
- Not 5 Star
ISEER: 4.00
Energy Rating: 3 Star
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Lloyd 1.5 Ton 3 Star Inverter Split AC
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This Lloyd 1.5 ton AC is all about user experience, with the inclusion of an inverter compressor that allows users to run the AC at different capacities, from 30% to 110%. Giving them the option of 5 modes, this is a versatile cooling appliance for every home. It has a hidden display which adds a sleek design to the room interior and allows easy monitoring of the temperature, even during nighttime. Additionally, the 3 star rating offers moderate energy saving along with the lower initial air conditioner price to enjoy cooling on a budget. By filtering the air through the clean filter, the air is more breathable and impacts the user’s health in a positive manner.
Specifications:
- Brand: Lloyd
- Model: ‎GLS18I3FWAGC
- Capacity: ‎1.5 Tons
- Annual Energy Usage: ‎956.79 Kilowatt Hours
- Noise Level: ‎32 dB
Pros:
- Protected From Voltage Fluctuations
- Turbo Cool Mode For Quick Relaxation
- Low Gas Detection For Continuous Use
Cons:
- No 4 Way Swing
ISEER: 3.84
Energy Rating: 3 Star
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Faq's

Inverter AC vs Non Inverter AC which is best ?
+
Inverter air conditioners allow users to change the tonnage as per the requirement which helps in power saving and more personalization.
What is ISEER rating in ACs?
+
It determines the energy efficiency of the AC. The amount of energy it saves during the summer season is depicted with the value. The more ISEER, the more savings.
Which AC brand is best for power saving?
+
LG, Daikin and Panasonic are some of the top AC brands with low power consumption models.