DC Brushless motor controller series: 1. Sensorless or sensored (optional) 2. Speed controlling: fast accelerating, liner accelerating,fast decelerating/brake, constant speed, over-speed limitation (optional) 3. Switch on: manual or automatic (optional) 4. Input votage range: 6-80V (optional) 5. Max. current: up to 200A (optional) 6. Protection: low voltage protection / over voltage protection / over-current protection / over temperature protection/ over-loading protection/ polarity inversion protection (optional) 7. Encapsulation: waterproof, dustproof 8. High efficiency 9. Self-cooling system (12V cooling fan) 10. Length<70mm, Width<30mm, Height<11mm