2. The power input has reverse polarity protection, preventing damage from reverse connection, making it ideal for DIY enthusiasts. 1. This is a mini sensorless three-phase brushless DC motor driver module, using high-quality chips for wide voltage operation. 3. It features an LED indicator to show the working status, offering stable performance and a long service life. 4. With three-phase three-wire drive, suitable for small three-phase four-wire brushless motors, it boasts a sinusoidal, low-noise, compact, and multi-functional design, making it a compact brushless frequency converter., Weight: 0.01763698096 pounds, Manufacturer: Oewwthy