The COZUMFAN 16C-15V-V1.0 is an all-in-one replacement main control circuit board (PCBA) designed for rechargeable DC backup cooling fans. Engineered on a durable FR-4 substrate, this high-performance module manages multi-speed motor control, smart battery charging, and features a built-in USB emergency power bank output. Complete with five tactile control switches, an onboard status indicator LED array, an acoustic warning buzzer, and modular plug-and-play wiring connectors, it serves as a reliable control unit for emergency table, pedestal, and solar fan applications.

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