CX2UP93O

Speed-adjustable smoke exhaust fan bracket

Overview

This is the V2.0 version of a modified old hair dryer speed-adjustable exhaust fan.

The previous version used wired power, which was inconvenient as it occupied multiple power outlets and power banks didn't always provide 12V.
Therefore, version 2.0 adds an 18650 lithium battery power supply with protection and automatic switching . It uses
an SX1308 boost converter for 12V
and features colorful silkscreen printing, making it very attractive and even eliminating the need for a separate casing.

Version 1.0 used

a low-cost
CH224K decoy power supply + DC power for 12V
speed control, directly utilizing an on-board
PWM DC motor speed controller 2A speed switch module
1.8-12V adjustable switch speed control board.

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Update:2026-03-26 12:07:31

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