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It is this one:
[URL unfurl="true"]https://a.co/d/7qlRdXC[/URL]

Inverter and DC is the same. Refers to being able to reduce the fan electricity as opposed to using pulse modulation (very quick on and off) to drive at lower speed. This helps maintain precise speed. In this case, induction motor is used instead of brushed one, which reduces noise and extends its lifetime.

[QUOTE="Trident, post: 1082483, member: 99014"] It is this one: [URL unfurl="true"]https://a.co/d/7qlRdXC[/URL] Inverter and DC is the same. Refers to being able to reduce the fan electricity as opposed to using pulse modulation (very quick on and off) to drive at lower speed. This helps maintain precise speed. In this case, induction motor is used instead of brushed one, which reduces noise and extends its lifetime. [/QUOTE]

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