Product Short Description
The KN-2389 (PFC-440) is a universal 6V AC/DC rechargeable emergency fan control circuit board. It serves as a direct replacement motherboard for multi-functional portable cooling fans and integrated emergency LED lights.
Key Features
- Dual-Mode Charging: Manages efficient float charging for 6V lead-acid batteries via an AC step-down transformer or DC input.
- Integrated Control Switches: Features built-in dual slide switches to toggle between multiple fan speeds (High/Low/Off) and emergency lighting modes.
- Universal Compatibility: Widely compatible as a repair or DIY replacement module for major emergency fan brands, including Sunca, Kennedy, Defender, and Midea.
- Onboard Protection: Engineered with premium 105°C-rated electrolytic capacitors and discrete switching transistors for stable power regulation and noise filtration.
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