3.7V Boost 4Gear BLDC Mini Fan Circuit Board Module

Product Description:

✨ Product Type: BLDC (Brushless DC) Fan Control & Step-Up Boost Circuit Board

⛔ Input Voltage: 5V DC via USB Type-C interface

✨ Battery Support: 3.7V Lithium-ion or Lithium-Polymer (e.g., 18650 flat cells)

⛔ Output Voltage Stages (Boost Converter): Multi-stage steps scaling dynamically across 5V, 7V, 9V, and up to 12V to drive higher motor RPM

✨ Speed Regulation: 4-Step Preset Gear Cycles alongside stepless speed control methods via tactile push-buttons

⛔ Output Current: Up to 0.6A

✨ Motor Compatibility: Optimized for 5-inch to 8-inch BLDC/Brushless DC fan motors

⛔ Protection Protocols: Onboard reverse polarity protection and overcharge/over-discharge safety circuits

✨ Standby Current Drain: Ultra-low quiescent drain of ~10µA to prolong overall battery lifecycle

⛔ Integrated Hardware: Dual control switches (Fan speed + Light power), onboard color-coded LED speed status indicators, and a front-facing white LED diode acting as an integrated torch/nightlight.