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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30-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 1 left in stock, order soon!
Arrives
Monday, Nov 17
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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
BEE Star Rating: 4 Star
Seasonal Energy Efficiency Ratio (SEER): 6.1
Color: 12,000 BTU Energy Saving
Voltage: 115 Volts (AC)
Noise Level: 41 Decibels
Product Dimensions: 28.94 x 18.7 x 14.88 inches
Item Weight: 66.8 pounds
Manufacturer: Antarctic Star
Item model number: A5408W-12
Form Factor: Window
Warranty Description: 1 Year Manufacturer
Batteries required: No
Included Components: Remote control, Foam sealer, Mounting block, Top foam sealer
Capacity: 60.39 Pounds
Floor Area: 550 Square Feet
Voltage: 115 Volts (AC)
Noise Level: 41 Decibels
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on June 29, 2025 by Manny
Style: 12,000 BTU Upgraded
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.
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Reviewed in the United States on June 28, 2025 by lumosinthenox lumosinthenox
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.
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Reviewed in the United States on August 12, 2025 by Ron
Style: 12,000 BTU Upgraded
I purchased the upgraded 12,000 BTU unit, and at first, it worked great. However, after some time, I started experiencing significant compressor issues. The unit became very loud and struggled to operate properly. I followed the installation instructions exactly, but now the unit only works in eco mode, and the compressor has trouble fully activating. I contacted customer service, and they informed me that they have no replacement units available, despite the fact that I can still purchase another from the same seller. As a result, I now have to return the unit, which will take over a week for them to receive, and then another week to process the refund. This means I'll be without AC during the end of July and start of August—peak summer heat. Overall, this has not been worth the hassle. The product's performance issues, combined with poor customer service and the long return process, have left me very dissatisfied.
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Reviewed in the United States on July 21, 2025 by Jeremiah R.
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.
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Reviewed in the United States on August 8, 2025 by mikeyari
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.
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Reviewed in the United States on August 4, 2025 by Keith Gobell
Style: 10,000 BTU
This has been working fine. I thought the timer would stay activated but it turns out you have to reset it daily. Pretty quiet though and I love how I can see the yard. Good value. Hard to get a window for above it though. It’s a tall horizontal window.
Reviewed in the United States on August 16, 2025 by Kevin and Allegra