Can you hook up a speed control to this booster?

No you do not want to use a speed controller. You will burn this motor out in days. You want to use speed controllers on centrifugal fans, not booster fans. The motor is ment for the rated voltage, nothing more nothing less. Please don't listen to the comments saying speed controllers are compatible with this booster fan.

Would this fan properly vent a 1000w hps lamp?

I am cooling two 600 W HPS lamps with a single fan and it works well

Will it overheat with a flow blockage?

Very small motor like a bathroom exhaust fan. Will not overheat because not an air tight situation.

I could definitely hook this up on a timer, but is it okay if the fan happens to run when the AC is not? (Context, booster for one of my bedrooms)

If the AC fan is not running, the duct fan will *tend* to draw air from registers in other rooms rather than through the idle ac unit. So, it will still work to equalize temperatures between rooms, which is likely your goal. On the negative side, it will be drawing from the ceilings, the hottest part of the rooms.

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VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

Product ID: 30245394

Details

Brand
VIVOSUN
Color
Silver
Electric fan design
Exhaust Fan
Mounting Type
Duct Mount
Power Source
Electric
Product Dimensions
4"D x 7"W x

💨100 CFM airflow

🔇<30 dB ultra-quiet

⚙️2930 RPM brushless motor

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Description

💨 Elevate your airflow game—quiet power that fits anywhere!

DURABLE METAL BUILD - Reinforced, corrosion-resistant metal housing ensures long-lasting reliability in any environment.
POWERFUL YET COMPACT - 4-inch duct fan delivering a robust 100 CFM airflow to keep your spaces fresh and breathable.
MAINTENANCE MADE EASY - Permanently lubricated bearings require zero upkeep; just a simple clean after initial use keeps performance optimal.
VERSATILE INSTALLATION - Perfectly sized and lightweight for tight spaces—ideal for basements, bathrooms, kitchens, attics, and grow rooms.
WHISPER QUIET OPERATION - Engineered with a balanced centrifugal impeller and brushless motor for noise levels under 30 dB—work or relax undisturbed.

The VIVOSUN 4 Inch Inline Duct Fan combines a high-efficiency 100 CFM airflow with whisper-quiet operation under 30 dB, powered by a durable brushless motor spinning at 2930 RPM. Its corrosion-resistant metal construction and compact design make it the go-to ventilation solution for professional-grade HVAC needs in tight indoor spaces like basements, bathrooms, and grow rooms.

Specifications

ASIN	B01C82SYZ0
Air Flow Capacity	100 Cubic Feet Per Minute
Best Sellers Rank	#26,190 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #96 in Household Ventilation Fans
Blade Length	4 Inches
Blade Material	Plastic
Brand	VIVOSUN
Brand Name	VIVOSUN
Cable Length	5.5 Feet
Collection Name	Inline Duct Fans
Color	Silver
Control Method	App
Controller Type	Button Control
Customer Reviews	4.2 out of 5 stars 9,768 Reviews
Electric Fan Design	Exhaust Fan
Electric fan design	Exhaust Fan
Finish Type	Painted
Included Components	Cord
Indoor Outdoor Usage	Indoor
Installation Type	built-in
Is Product Cordless	No
Item Dimensions D x W x H	4"D x 7"W x 4"H
Item Weight	1.7 Pounds
Manufacturer	VIVOSUN
Material	Metal
Model Name	vivosun
Model Number	331101-4
Motor Type	Brushless
Mounting Type	Duct Mount
Noise Level	30 Decibels
Number of Blades	3
Number of Power Levels	1
Number of Speeds	3
Part Number	CECOMINOD070342
Power Source	Electric
Product Dimensions	4"D x 7"W x 4"H
Recommended Uses For Product	Basements
Room Type	Bathroom
Size	4"& No Speed Controller
Special Features	Lightweight, Portable
Speed	2930 RPM
Style	Modern
Switch Type	Push Button
UPC	714119466250
Unit Count	1.0 Count
Voltage	120 Volts
Warranty Description	Manufacturer Warranty for 360 days from date of purchase.
Wattage	14 watts

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58239CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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