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Antarctic Star

Antarctic Star 12,000 BTU Window Air Conditioners, U-Shaped Air Condtioner Unit Cools up to 550 Sq. Ft, 6 Modes 24H Timer Energy-saving Window AC Units, Full Window View, Easy to Install, White

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, May 23
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Style: 12,000 BTU Energy Saving


Features

  • Fast cooling: 12,000 BTU air conditioner cools living room, bedroom, dorm, office up to 400 square feet. R32 refrigerant used for efficient energy properties
  • 6 functions: Cooling, fan, dehumidifier functions provide comfort in various weather conditions. Energy saving mode keeps your home comfortable without excessive energy use
  • Digital display & remote control: Easy-to-understand display with LED lights for nighttime adjustments. Remote control allows for convenient temperature control without leaving your seat
  • Smart temperature sensor: Mytemp sensor maintains desired temperature while using less energy, ensuring a suitable feeling
  • Easy to move: Lightweight design allows for easy movement between windows, providing cool comfort wherever needed
  • Additional feature: 24-hour timer for advanced scheduling and temperature control

Brand: Antarctic Star


Capacity: 60.39 Pounds


Cooling Power: 12000 British Thermal Units


Special Feature: Dehumidifier, Fast Cooling, Remote Controlled


Product Dimensions: 28.94"D x 18.7"W x 14.88"H


Start year: 2012


Seasonal Energy Efficiency Ratio (SEER): 10.9


Color: White


Voltage: 115 Volts (AC)


Noise Level: 41 Decibels


Cooling Power: 12000 British Thermal Units


Additional Features: Dehumidifier, Fast Cooling, Remote Controlled


Color: White


Noise: 41 Decibels


Refrigerant: R-32


Inverter Type: No Inverter


Installation Type: Window


Compressor Type: reciprocating


Is Outdoor Unit Required: No


Air Conditioner Application: Residential Indoor


Voltage: 115 Volts (AC)


Power Source: Corded Electric


Wattage: 690 watts


Is Product Cordless: No


Seasonal Energy Efficiency Ratio (SEER): 10.9


Efficiency: 6.1


Annual Energy Consumption: 690 Watts


Control Method: Remote, Touch


Controller Type: Remote Control, Touch Control


Operating Mode: Cooling, Dehumidifying


Warranty Type: Limited


BEE Star Rating: 4 Star


Brand Name: Antarctic Star


Start Year: 2012


Model Name: A5408W


Model Number: A5408W-12


Included Components: Remote control, Foam sealer, Mounting block, Top foam sealer


Global Trade Identification Number: 40


Manufacturer: Antarctic Star


Item Type Name: Window Air Conditioner


Warranty Description: 1 Year Manufacturer


Item Dimensions D x W x H: 28.94"D x 18.7"W x 14.88"H


Item Weight: 66.77 Pounds


Window Opening Maximum Width: 48 Inches


Window Opening Minimum Height: 24 Inches


Window Opening Minimum Width: 24 Inches


Window Opening Maximum Height: 36 Inches


Capacity: 60.39 Pounds


Floor Area: 550 Square Feet


Room Type: Living Room


Form Factor: Window


Number Of Circuits: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 23

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View our full returns policy here.

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Top Amazon Reviews

    • Good Product So Far
Style: 12,000 BTU Upgraded
Got this for my tenant. She says it cools her apartment right down, even though it is just undersized for the volume it is cooling. Quiet too. Installed easily. My only complaint was that it got beat up in transit, box was damaged, and the casing that goes outside took a pretty good hit, so it has a few bends in the metal. Because of this, I almost lowered to 4 stars, but it really is shipper that gets the poor grade here, not the manufacturer. I still don’t know what this is going to do to my electric bill, but it claims to be very efficient. Time will tell. ... show more
Reviewed in the United States on June 29, 2025 by Manny
    • Great AC unit and cools everything. Good deal. May not be good for light sleepers.
Style: 12,000 BTU Upgraded
Review Image by lumosinthenox
This a great cooling unit and it also looks very nice. It chills the room quickly and the quiet fan is quiet. I think it might be the compressor that makes noise when it hums and vibrates and that is only sound it makes and it can be kind of loud for light sleepers. The remote makes it easy to control from a distance, but the info like temperature or mode might be out of sync when you change settings with the AC buttons instead. The remote display info refreshes after changing anything with the remote. The vent is adjustable. The foam boards and weather strips come included. It works for me and I love it. Had it for a month so far. I thought it was a pretty good deal. I have no information about efficiency, I just wanted an AC unit that didn't cover up all the window and the U shape is good for isolating the condenser outside so it releases the heat more fully outside. I would have preferred that the remote display have a backlight when it is used at night. ... show more
Reviewed in the United States on June 28, 2025 by lumosinthenox
    • Great Window AC Unit that does not block view out of window.
Style: 12,000 BTU Energy Saving
Outstanding performance and operation. Easy to install with assistance of another person as the unit is HEAVY for one person to lift and move around. Very quiet operation and easy to use with the remote or by using the touch panel on the front of the unit. Hardest part of the installation was getting the unit out of the packing material as it was very well packed for shipment. ... show more
Reviewed in the United States on March 31, 2026 by MHK
    • Works well, but complicated to install
Style: 12,000 BTU Upgraded
Does a good job cooling and has quite a few setting that come in handy. However, the main selling point of a window unit that sits low and straddles the window sill isn’t as great as it sounds. It’s also much louder than I expected. Yes, it’s nice not having as much of the window blocked by an AC unit, and you definitely don’t have any worries that it’s going to drop out the window. Those are big benefits. But getting the unit into position and having to piece together weatherstripping/foam board to block window openings was a real headache. The unit also weighs much more than a typical window unit and is harder to navigate since you have to lift over the sill and then drop it down. You also need a big window because you need enough clearance to negotiate the unit through and then down. If low profile and having the AC securely fastened around the sill are priorities, this is a good unit. But for the hassle it took to install, I will go with a regular in-window unit in the future. Also, make sure you measure before you buy. I have what I think is a normal-depth window sill, and the unit barely fit around it. ... show more
Reviewed in the United States on August 8, 2025 by mikeyari
    • Cool & quiet
Style: 12,000 BTU Energy Saving
Arrived 3 days earlier than was told. Box and packing not damaged but product was! This tells me it was packaged damaged! Big dent on outside, won't see it but should of been inspected by quality. Overall happy with it, easy to install and you only hear the sound of a fan blowing. It can accommodate a very thick wall, the adjustments come out very far for thinner walls. I bought a bigger BTU than needed, was using a 5,000 BTU and they quit after 5 years, went through 3 of them already, looking to see how long this one will last. ... show more
Reviewed in the United States on August 4, 2025 by Keith Gobell
    • You can’t always get what you want..
Style: 12,000 BTU Upgraded
This AC unit fits so well over the windowsill and provides a clear view of the window without taking up the entire space. However, after a month, we noticed that it doesn’t get as cold as it used to. Additionally, it makes a lot of rattling sounds. Make sure to level it out properly, as we didn’t, and even after leveling it out, it still has a loud motor cranking sound that randomly turns on, even when the unit is off. This might be due to condensation. Unfortunately, you can’t turn off any of the lights, and they are very bright. We had to cover our brand new unit with electrical tape to sleep because the lights lit up our entire bedroom. I reached out to the company, but unfortunately, it was just outside 30 days, and they basically told us that we were out of luck financially. ... show more
Reviewed in the United States on August 14, 2025 by Ron Millward
    • Fairly happy we got it.
Style: 12,000 BTU Upgraded
So far so good. Delivery condition, installation, and current function. We had a standalone and it just couldn't keep up with the temperature shifts. It ended up malfunctioning due to the humitidy in the room. I was fearful this window one would be something like I've seen my parents where they had to put some make shift feet to get it to sit right. Or be noisy. It fit our apartment window and has some rubber feet that assist with it's stability on the outside. Usually have it on low or medium, and it has kept our room comfortably cold. It's usually very swampy warm, so it's a relief after almost 2 years. It's only done a motor gear noise once right after we installed it, and I set it to a lower setting without any issues since. I think it needed a minute to adjust to how much work it needed to do at first. ... show more
Reviewed in the United States on June 13, 2025 by SEler
    • Blowing nice COOL air into my garage.
Style: 8,000 BTU
Nice window AC unit. Bought it for my garage. Now on those hot summer days, I can work in my garage without all that discomfort. Easy to install. Works great! Blows out nice COOL air. I couldn’t use the remote because there’s a screw on the back you need to take out to get the batteries in. It is so small I didn’t have a screwdriver that would fit. Oh well. I can press buttons on the unit just as easy as the remote. ... show more
Reviewed in the United States on August 12, 2025 by Ron

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