PWM frequency is 25kHz, compatible with most 12V adjustable speed fans on the market. Duty cycle adjustable from 0% to 97%, providing a wide speed range.
RUNCCI-YUN 2Pcs PWM Fan Speed Controller,4 Wires 0-5V 12V Fan Speed Controller PWM Speed Control On Off Switch for PC CPU Case Fan with Knob
RUNCCI-YUN 1Pcs PWM Fan Speed Controller,4 Wires 0-5V 12V Fan Speed Controller PWM Speed Control On Off Switch for PC CPU Case Fan with Knob
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