Product Description 30A 1650W DC Brushless Motor Speed Controller Regulation Switch Driver Board Motor Electric Governor DC 18V 24V 36V 48V No Hall Specification: Wiring: Red Line: Power Positive Black Line: Power Negative Blue Line: DC Brushless motor Input voltage: DC18-55V Output voltage: Load Linear Output Current: 0-28A Overcurrent protection: Yes (30A) Power: MAX 1650W Speed mode: potentiometer (linear) Speed range: 0--100% Reverse polarity protection: NO Suitable Motor: DC Brushless motor Module size: L*W*H 150MM*86MM*45MM Product Weight: 500g Package size: center distance 165MM Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3cm differences due to manual measurement. Package Included: 1x Motor Speed Controller