3.7V-5V DC Fan Controller Board with 3-Speed USB

DC Mini Fan Controller Board 3.7V-5V 3-Speed USB Module This DC fan circuit board is designed for rechargeable mini fans, offering smooth 3-speed control and stable performance. It supports 18650 lithium batteries and features a Micro USB charging port with LED indicators for easy status monitoring. Ideal for DIY fan projects and custom electronic builds. Specifications Product Type: DC Fan Circuit Board Compatible With: Rechargeable Mini Fans Speed Control: 3-Level Speed Adjustment LED Indicator: Red (Charging), Blue (Power On) Charging Input: Micro USB, 5V / 2A (Max) Battery Input: 3.7V 18650 Lithium Battery Application: DIY Projects, Fan Customization
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