Can it be used on a outside inflatable

Yes, I bought it for a large inflatable snowman but it wasnt powerful enough. Probably fine for a 4 foot one.

What in the minium dc volt operating range?

I'm using it at 6v and it is working perfectly for my purpose (Powered air respirator). Below 4.5v it struggles.

Would this work on a Lenovo M720q tiny computer?

I used in an inflatable yard decoration. You would have to measure and check the requirements of your machine.

I need to know which cable is positive and which is negative since they're both black cables? What voltage and amperage does this product run at?

This device is powered by 110vAC, so their is no "positive" and/or "negative" connection. As per the specifications in the AMAZON notes, "4w".

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12V Sleeve

Product ID: 135224236

Details

Brand
Wathai
Cooling Method
cooling
Material
Plastic
Maximum Rotational Speed
3000 per week
Noise Level
45 db
Power Connector Type
2-Pin

⚡12V brushless motor for efficient power

💨38.5 CFM high airflow for superior cooling

🔇45dBA low noise for quiet operation

€ 41.57

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💨 Stay Cool, Stay Ahead — Power Your Tech with Wathai!

VERSATILE DIY READY DESIGN - Easily customize with cut-and-solder connectors to fit any setup or device.
TURBOCHARGED 3000 RPM SPEED - Rapid airflow keeps your tech and gadgets running cool under pressure.
ULTRA QUIET 45 D BA OPERATION - Stay focused with whisper-quiet performance that won’t disrupt your workspace.
COMPACT YET MIGHTY 120 MM SIZE - Fits seamlessly into PC cases, car audio systems, RV fridges, and more.
POWER PACKED 12 V BRUSHLESS MOTOR - Delivers consistent, energy-efficient cooling with minimal wear.

The Wathai 120mm x 32mm 12V Brushless Cooling Blower Fan combines a high-speed 3000 RPM brushless motor with 38.5 CFM airflow and a quiet 45dBA noise level. Designed for versatile use in PCs, car audio, RV fridges, and more, it offers a durable 35,000-hour lifespan and DIY-friendly connectors, making it the go-to cooling solution for professionals and tech enthusiasts alike.

Specifications

ASIN	B07RMJC9NT
Air Flow Capacity	38.5 cfm
Best Sellers Rank	#124 in Computer Case Fans
Brand Name	Wathai
Compatible Devices	inflatable fan replacement, radiator Amplifier Desktop Gaming Console Inverter Laptop Printer Projector Refrigerator Router Server Smartphone Switch Tablet Television
Cooling Method	cooling
Customer Reviews	4.3 4.3 out of 5 stars (1,049)
Item Dimensions L x W x H	4.72"L x 1.26"W x 4.72"H
Item Weight	6.75 ounces
Manufacturer	Wathai
Material Type	Plastic
Maximum Rotational Speed	3000 revolutions per week
Model	Wathai
Noise Level	45 db
Number of Items	1
Number of Packs	1
Part Number	Wathai
Power Connector Type	2-Pin
UPC	702334356746
Unit Count	1 Count
Voltage	12 volts_of_direct_current
Wattage	12.3 watts

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€ 41.57

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered 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 Finland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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