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Big Ass Fans Haiku Indoor Ceiling Fan with Brushed Aluminum Blade and LED Downlight Kit

Brand: Big Ass Fans
Model: MK-HK4-042400A258F531G10-LED

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$2,130.00
$2,130.00
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Size: 52 in (225 sq ft)
Color: Brushed Aluminum Blades / Black Motor
8-9 ft (Flush Mount)
8-9 ft (Flush Mount)
8-9 ft (7 in downrod)
9-10 ft (12 in downrod, included)
10-11 ft (20 in downrod)
12-13 ft (32 in downrod)
14-15 ft (48 in downrod)
16+ ft (60 in downrod)
In Stock
Delivers Sep 24-Oct 1 (Est.)
Free Curbside Shipping
Curbside shipping means your order will be delivered to the curb or driveway outside your home. The driver will not bring it inside or set it up. Please arrange for help if needed!
$2,130.00
$2,130.00
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Engineered & Assembled in Lexington, Kentucky
Every Haiku is designed, balanced, and assembled by Big Ass Fans, then backed by a 5-Year Residential Warranty.
5-Year Residential Warranty
Covered for years of everyday use
Engineered & Assembled
In Lexington, Kentucky
Powerful, Efficient Airflow
Up to ~17,000 CFM
Whisper-Quiet
Under 35 dBA at full speed
Smart Control
App, remote, Alexa & Google
SenseME® Automation
Senses motion & temperature

DESCRIPTION

The Haiku by Big Ass Fans is the world's most efficient smart ceiling fan: three precision-balanced airfoils, a whisper-quiet permanent-magnet motor, and built-in SenseME® sensors that adjust the fan automatically as your room changes. This listing features the Brushed Aluminum blade finish.

Why the Haiku

  • Feel the air, not the noise. Moves up to ~17,000 CFM yet stays under 35 dBA, quieter than a whisper, at full speed.
  • It runs itself. SenseME® motion and temperature sensors start the fan when you enter and adjust speed as the room warms or cools.
  • Control it your way. Bluetooth remote, the Big Ass Fans app, and Amazon Alexa / Google Assistant, with seven speeds from a gentle breeze to a full cool-down.
  • Built to last, built here. Engineered and assembled in Lexington, Kentucky, and backed by a 5-Year Residential Warranty.
  • Add light when you want it. This fan comes with the Haiku LED Downlight Kit included, in a matching finish.

Choose your configuration

Use the selectors above to build your fan:

  • Fan diameter: 52 in (up to ~225 sq ft), 60 in (up to ~400 sq ft), or 84 in (up to ~900 sq ft).
  • Downrod / ceiling height: the 12 in downrod is included; for the lowest ceilings choose Flush Mount (no downrod, flat ceilings only, 52 & 60 in) or a 7 in downrod, or add a 20-60 in downrod for higher ceilings.

What's in the box

Fan motor & airfoils · Haiku LED Downlight Kit · 12 in downrod · mounting hardware · Bluetooth remote · quick-start guide. Alternate downrod lengths sold separately.

Engineered & assembled in Lexington, Kentucky, backed by a 5-Year Residential Warranty. Full specifications below.

SPECIFICATIONS & DIMENSIONS

  • CONFIGURABLE OPTIONS
  • Size: 52 in (~225 sq ft), 60 in (~400 sq ft), or 84 in (~900 sq ft)
  • Color: Brushed Aluminum blades in a choice of motor finish
  • Ceiling Height: 12 in downrod included for 9-10 ft ceilings; for other heights choose Flush Mount (no downrod, flat ceilings only) or 7 in for 8-9 ft, or 20/32/48/60 in downrods for taller ceilings - all sold separately (Flush Mount & 7 in on 52/60 in only)
  • Blade Finish: Brushed Aluminum
  • PERFORMANCE (INDOOR)
  • 52 in: Up to ~199 RPM, up to ~6,973 CFM, from ~14.7 W
  • 60 in: Up to ~199 RPM, up to ~7,803 CFM, from ~16.2 W
  • 84 in: Up to ~128 RPM, up to ~17,031 CFM, from ~32.9 W
  • Operating Voltage: 100-240 VAC, 1-phase, 50-60 Hz
  • Ambient Temperature: 32 to 104 F (0 to 40 C)
  • Sound Level: Under 35 dBA at max speed (whisper-quiet)
  • CONTROLS & SMART FEATURES
  • Included: Bluetooth remote, seven speed settings, Big Ass Fans mobile app
  • SenseME Technology: Onboard motion and temperature sensors
  • Integrations: Amazon Alexa and Google Assistant
  • MOUNTING & DOWNRODS
  • Mounting: Universal or low-profile (low-profile on 52 and 60 in only)
  • Included Downrod: 12 in, included with every fan
  • Optional Downrods: Flush Mount or 7 in (52 & 60 in only), 20, 32, 48, 60 in - sold separately, choose based on ceiling height
  • LIGHTING (INCLUDED)
  • LED Downlight Kit: Dimmable, included with this fan
  • Chromatic Uplight: Color-changing, sold separately as an add-on
  • WARRANTY & COMPLIANCE
  • Warranty: Up to 5 years indoor (see Big Ass Fans warranty terms)
  • Prop 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

INSTALLATION & GUIDES

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Tech Specs PDF
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Warranty PDF
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Install Guide PDF
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Fan Distance Guidelines PDF

QUESTIONS & ANSWERS

Q: What size fan do I need for my room?
A: Match the fan diameter to your room's square footage: 52 in for up to ~225 sq ft (15′×15′), 60 in for up to ~400 sq ft (20′×20′), and 84 in for up to ~900 sq ft (30′×30′). See the "Choose Your Fan Diameter" chart above.

Q: Which downrod length should I choose?
A: Match the downrod to your ceiling height — 7 in (flush) for 8–9 ft ceilings, 12 in (included) for 9–10 ft, and 20 / 32 / 48 / 60 in for taller ceilings up to 16 ft+. The 12 in downrod is included; other lengths are available as an add-on. (Note: the 7 in flush mount is offered on the 52 in and 60 in fans.)

Q: Does the fan come with a light?
A: The Haiku is sold as the fan itself. You can add the Haiku LED Downlight Kit (dimmable, sold separately) in a finish that matches your fan.

Q: How do I control the fan?
A: Every Haiku includes a Bluetooth remote and works with the free Big Ass Fans app. It also connects to Amazon Alexa and Google Assistant for voice control, with seven speed settings.

Q: What is SenseME® technology?
A: Built-in motion and temperature sensors that let the fan run automatically — it can start when you walk in and adjust its speed as the room's temperature changes.

Q: Is it really that quiet?
A: Yes — the Haiku runs under 35 dBA even at its highest speed, thanks to a whisper-quiet permanent-magnet motor and precision-balanced airfoils.

Q: How much does it cost to run?
A: Very little — the Haiku is one of the most efficient fans made, drawing as little as ~14.7 W on the 52 in model.

Q: Can I use it on a sloped or high ceiling?
A: Yes. Choose a longer downrod for higher ceilings (up to 16 ft+ with the 60 in rod). For angled ceilings, confirm the downrod keeps the blades the required distance from walls and floor.

Q: What's the warranty?
A: The Haiku is backed by a 5-Year Residential Warranty for indoor home use.

Q: Where is it made?
A: The Haiku is engineered and assembled by Big Ass Fans in Lexington, Kentucky.

Q: Who installs it?
A: Installation is straightforward for a licensed electrician; hard-wiring to a standard ceiling electrical box is required. We recommend professional installation.

Q: What finishes are available?
A: Choose from bamboo (Caramel, Cocoa, Natural), painted (Black & White, Brushed Aluminum), and special-edition finishes (Driftwood, Satin Nickel, Oil-Rubbed Bronze, Cream), each with a matching motor/hardware finish.

SHIPPING POLICY

Free Curbside Delivery
Big Ass Fans orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.

Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.

Shipping Times
Evaporative Coolers: 5-8 days
Ceiling Fans: 20-32 days
Please note some custom fans can take 50 days, check the product page for specific dates.

See our full Shipping Policy here.

RETURN POLICY

Big Ass Fans returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.

Please note, a 25% restocking fee will be applied to all approved returns.

See our full Return Policy here.

Choose Your Fan Diameter

Not sure which size is right for you? Match your room's square footage to find the ideal fan diameter.

Fan Diameter Room Size Included Downrod
52 in. Up to 225 sq ft 12 in.
60 in. Up to 400 sq ft 12 in.
84 in. Up to 900 sq ft 12 in.

Choose Your Downrod

Not sure which length you need? Match your ceiling height to find the right downrod.

Downrod Length Ceiling Height Additional Cost
7 in.* 8–9 ft —
12 in. 9–10 ft —
20 in. 10–11 ft —
32 in. 12–13 ft —
48 in. 14–15 ft —
60 in. 16+ ft —

*Flush mount is for flat ceilings only and isn't available on 84 in. models.

Haiku vs. Haiku L

Not sure which one is right for your space? Here's how the two compare side by side.

Haiku
Maximum performance
Maximum airflow and whole-room automation for larger spaces, with up to 17,031 CFM, SenseME® sensing, and 10 finishes to match any room.
Shop the Haiku Collection →
VS
Haiku L
Streamlined & affordable
Clean, integrated design with built-in LED lighting at a lower price point, including a UL wet-rated outdoor model.
Shop the Haiku L Collection →
  Haiku Haiku L
Diameter options 52, 60, 84 in 44, 52, 60 in
Room coverage
  • 52 in Up to 225 sq ft
  • 60 in Up to 400 sq ft
  • 84 in Up to 900 sq ft
  • 44 in Up to 100 sq ft
  • 52 in Up to 225 sq ft
  • 60 in Up to 400 sq ft
Ceiling height 52/60 in: 8 ft+ with flush mount · 84 in: 9 ft+ (standard mount only) 8 ft+ on every size (indoor: flat or sloped · outdoor: flat only)
Max airflow
  • 52 in ~6,973 CFM
  • 60 in ~7,803 CFM
  • 84 in ~17,031 CFM
  • 44 in ~4,662 CFM
  • 52 in ~5,204 CFM
  • 60 in ~6,553 CFM
Lighting Not included; add the Haiku LED Downlight Kit or Chromatic Uplight (sold separately) Integrated LED included, 16 dimmable levels, 2700K, 90 CRI
Warranty 5-Year Residential Warranty Up to 5 Years Indoor, Up to 3 Years Outdoor
Key features SenseME® automatic motion & temperature sensing · under 35 dBA at max speed High-efficiency motor with Fan Eco mode · under 35 dBA at max speed

What's Included

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