Product name:DC ceiling fan driver PCBA Performance data: Control way: Sin wave control, FOC Hall sensor: Sensorless RPM: 0-400 Speed control: RF/PWM/VSP/SPI Speed feedback: Yes Forward/Reverse function: No Can be with LED light: Yes Rated spec.: Input voltage: 12V Power:30W Protection data: Working voltage: 12V Current limit protection: 4A Over current protection: 6A Phase failure protection: Yes Product features: Super silent Heat dissipation structure design Switch buzzer tone