YF Ebike Sensored Brushless Motor Controller 48v/52v 20000-2500W 18-FET 45A KT May 7, 2025 by admin Electric Bicycle 45A Brushless Controller. Cable length: 10-16cm (Approx). Speed setting: 1-4.2V. Brake input: Low Level. Low voltage protection: DC30/40±0.5V. LCD Panels Suitable For This YF Controllers. (Please Choose YF LCD).