Is this unit ul tested, if yes, to what standard. if not, what standards has it been tested?

UL 507 is the relevant standard for electric fans, however this fan was not tested by UL. Also important to note that UL Listed products are tested while UL Recognized products are not tested. Both levels require a direct marking on the part which means this fan has neither level. To be honest most fans at this price level are not going to be agency tested just because the target market is PC case fans, and the things UL tests for are not relevant to PC builders. The fan has CE certification which is just saying it won't burn your house down. CE doesn't check fans for performance; you're better off reading reviews than looking for agency approvals if this is a PC fan.

will this fan work with just pos & neg hooked up? do I need all for wires hooked up to work ? thanks

Will work with just pos and neg.

If I plan to use more than 50% capacity of the 5300rpm model, would I need to connect it to a controller/hub rated for more than 1amp per lane?

I would make sure that which ever Fan Port you connect this High Airflow Fan that it will support the amperage stated in the specs of the fan.

Any water or dust resistance rating? ip52, ip67?

I do not see any water/dust proof rating printed, however, I use this fan as a range-top exhaust fan in suction mode, so all cooking steam & grease-laden fumes are drawn across/through the fan... daily. Thus far, it has performed flawlessly, despite the harsh environment. I recommend this fan.

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💨 Stay Cool, Stay Ahead: The Industrial Fan That Means Business

DURABLE DUAL BALL BEARINGS - Engineered for longevity, delivering up to 50,000 hours of reliable performance.
TURBOCHARGED 3000 RPM SPIN - Experience rapid cooling with a high-speed fan that keeps your tech chill under pressure.
PLUG PLAY 2 PIN CONNECTOR - Easy installation with a standard XH2.54-2Pin connector and 25cm cable for flexible setups.
WHISPER QUIET 42 D BA OPERATION - Stay focused with minimal noise—industrial strength cooling without the distraction.
VERSATILE INDUSTRIAL GRADE DESIGN - Perfect for caravans, refrigerators, and electronics—upgrade your cooling game effortlessly.

The Wathai 120mm x 38mm 12V dual ball bearing cooling fan delivers powerful 125 CFM airflow at 3000 RPM with a quiet 42dBA noise level. Designed for industrial and caravan use, it features a durable 50,000-hour lifespan and easy 2-pin connector installation, ensuring efficient and long-lasting cooling performance.

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Manufacturer	Wathai
Part number	12038B12V2P2.5
Item Weight	220 g
Product Dimensions	12.01 x 12.01 x 3.81 cm; 219.99 g
Item model number	12038B12V2P2.5
Colour	120x38mm 12V 2P Ball
Style	12V 2Pin Ball
Material	Plastic
Voltage	12 Volts (DC)
Wattage	6 watts
Noise Level	42 dB
Batteries included?	No
Batteries Required?	Yes

Wathai120mm x120 x 38mm 12V 2Pin Dual Ball 12cm Industrial Cooling Fan High Airflow

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