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Antarctic Star

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

  • Based on 251 reviews
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Labor Day Deal · 19% off was $494.99

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Style: 12,000 BTU Upgraded


Features

  • Space Efficient: The U-shaped portable design enables you to easily place it in the window during warm weather and remove it when not in use. This feature not only enhances portability but also provides an unobstructed view of the outdoors during the summer months.
  • 6 Modes in 1: This air conditioner offers six versatile modes: Cool, Dry, Fan, Auto, Sleep, and Energy Saving, catering to a variety of needs. In Cool and Energy Saver modes, you can conveniently set the temperature between 62F and 86F, making it an excellent option for your summer comfort.
  • Efficient Cooling and Convenient Control: This 12,000 BTU air conditioner is designed to cool spaces up to 550 square feet, ensuring your home remains comfortable. It is an excellent choice for various settings, including living rooms, bedrooms, kitchens, apartments, dorms, and offices. In addition to its user-friendly LCD control panel, it also comes with a remote control, allowing you to adjust the settings with ease and convenience.
  • Quiet and Energy Efficient: This unit features a mytemp sensor that automatically shuts off once the desired temperature is achieved. Additionally, it includes Energy Saver and Sleep Modes, which help reduce energy consumption while maintaining noise levels below 41dB. The 24 hour timer allows you to schedule the air conditioning to turn off at a specific time, further enhancing energy savings.
  • Simple Installation: Effortlessly position the air conditioner on the window sill without the need for bracket mounting, ensuring it remains securely in place. This unit is compatible with windows ranging from 24 to 48 inches in width and requires a minimum height clearance of 16 inches. Additionally, it accommodates a maximum window sill clearance of 11 inches.

Description

Antarctic Star, established in 2018, specializes in wine coolers, refrigerators, freezers, ice makers, and more. "Antarctic" represents coldness, while "star" symbolizes becoming a shining star in the freezer and wine cabinet categories. Dedicated to preserving freshness, it illuminates people's desire and sense of happiness through deliciousness.

Brand: Antarctic Star


Capacity: 60.4 pounds


Cooling Power: 12000 british thermal units


Special Feature: Remote Controlled


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


Seasonal Energy Efficiency Ratio (SEER): 13


Color: 12,000 BTU Upgraded


Voltage: 115 volts


Noise Level: 41 db


Power Source: Corded Electric


Cooling Power: 12000 british thermal units


Additional Features: Remote Controlled


Color: 12,000 BTU Upgraded


Noise: 41 db


Inverter Type: No Inverter


Installation Type: Window


Compressor Type: rotary_scroll


Air Conditioner Application: Residential and Small Commercial


Voltage: 115 volts


Power Source: Corded Electric


Wattage: 690.02


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


Item Weight: 66.8 pounds


Window Opening Maximum Width: 48 inches


Window Opening Minimum Height: 16 inches


Window Opening Minimum Width: 24 inches


Window Opening Maximum Height: 47 inches


Capacity: 60.4 pounds


Floor Area: 550 square_feet


Room Type: Indoor


Brand Name: Antarctic Star


Model Name: A5408W-12K-Upgraded


Model Number: NCA-08C/X1E


Unit Count: 1 Count


Included Components: Window Air Conditioner


Global Trade Identification Number: 51


Manufacturer: Antarctic Star


Item Type Name: Window Air Conditioners


Warranty Description: 1 Year Manufacturer


Seasonal Energy Efficiency Ratio (SEER): 13


Annual Energy Consumption: 690 watts


Control Method: Remote


Controller Type: Remote Control, Touch Control


Warranty Type: Limited


BEE Star Rating: 4 Star


Form Factor: Window


Frequently asked questions

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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.

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Top Amazon Reviews

    • Alternative AC That Packs A Punch
Style: 10,000 BTU
As someone who has to buy alternative air conditioners that do not have the accordion pieces on the side (my dog figured out how to get through these parts and quickly became an escape artist) you simply cannot beat this unit. It fits snug on the window, with almost no installation to speak of. You can have the whole thing ready to go in under 10 mins. This is a powerful machine that will cool your area with ease. We are obsessed with the quiet feature and always use it overnight. If you’re looking for something dog proof or if you don’t want to deal with messy looking side panels give this unit a shot. It gets the job done (and then some!) ... show more
Reviewed in the United States on June 30, 2026 by Unicron
    • Easy install, quiet, and cools like a champ
Style: 12,000 BTU Energy Saving
Easy install, quiet, and cools like a champ Couldn't be happier with this Antarctic Star 12,000 BTU U-shaped unit. Installation was genuinely simple — I had it mounted in under 15 minutes, and from cutting open the box to being completely done and running, it took me less than 30 minutes total. No struggle, no calling for help. Once it's running, it's impressively quiet. The U-shaped design really does cut down the noise compared to a standard window unit, so I'm not fighting to hear the TV or hold a conversation. And it has no trouble cooling a large room — it gets the space comfortable fast and keeps it there. If you're on the fence, this one's an easy recommendation. Solid build, painless setup, and it does exactly what it's supposed to do without making a racket. ... show more
Reviewed in the United States on June 14, 2026 by george specht
    • Cheap Trash!
Style: 10,000 BTU
Review Image by cwg
Review Image by cwg
Absolutely horrible experience and seller! Received this and upon unboxing, noticed not all parts for installation were included that said they were. Took over a week to get the company to send me the parts. After finally being able to attempt installation, the unit shook the entire wall when turned on. Took it down and upon further investigation, the fan inside the unit was broken. This was obviously a return that had been reboxed to remove any signs it was a returned unit. By the time the seller actually responded, it was past their return window, mind you it was past the return time due to them not supplying the parts needed for installation and having to be shipped from China. DO NOT TAKE A CHANCE ON THE ITEM! You will be out your money when the unit doesn’t work and don’t expect any assistance from the company! ... show more
Reviewed in the United States on July 22, 2026 by cwg
    • Works great but drains inside your home
Style: 10,000 BTU
I’ve been using this about a week so I can’t speak to long term quality. It’s much quieter than other air conditioners I own, especially if you use the quiet mode. The u shape means it is secure on a second story window. Definitely need to measure carefully, it was almost too narrow for my old window sills. Otherwise installation was easy with two people. Something no review mentioned was that there is a drainage port on the inside half of the unit. If I leave this open it probably drains a cup of water an hour, so if that’s an issue to you definitely don’t buy this. The only video review that showed this was clearly a paid review of someone who didn’t use the unit, as this is impossible to miss if you leave it on for more than five minutes. The u shape means that water cannot drain outside. The water would eventually fill up the interior half and leak out of the casing if you didn’t open the plug. However, if your alternative is a portable a/c the drainage is situation is inevitable. Either way this was worth it to me and definitely cools the majority of my apartment (~200sqft living room and 45sqft of hallway) and is half as loud as my other unit. I’ll have to buy a hose and bucket for the drainage as I cannot drain this outside. Update after a month hot weather: still quiet, still works great, continues to drain inside. Eco mode works well, it only turns on periodically and keeps it around the set temperature. Timer and remote work well too. If you were considering a floor unit this is probably a better option, but I wouldn’t pick this over a window unit that doesn’t drain outside unless you have to. ... show more
Reviewed in the United States on May 20, 2026 by victoria
    • 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
    • Satisfied
Style: 12,000 BTU Upgraded
Quiet running air-conditioning. Cools my 14x40 cabin in 95 degree heat very well.
Reviewed in the United States on July 21, 2026 by Johnny Nichols
    • New Window Unit
Style: 12,000 BTU Upgraded
Review Image by Jessica
Review Image by Jessica
Review Image by Jessica
I’ve used a lot of different window units before but was very impressed when I just opened the box. This a/c comes with everything ya need including things I would have to purchase myself with other units. You even have way more window view! Was quick and easy install. Touch sensitive controls, remote and mainly, Ice cold air!! ... show more
Reviewed in the United States on June 9, 2026 by Jessica
    • Hangs below the window seal
Style: 12,000 BTU Energy Saving
Nice. Hangs below. The window seal works properly. Great for this weather
Reviewed in the United States on July 6, 2026 by Toni McCarver

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