This 50A speed controller is a good affordable solution to power your brushless motor.
50A: Size: Approx. 65.0x25.0x12.0mm Weight: Approx. 43G Working current: 50A Maximum current: 65A (10 seconds) BEC: Yes, 2A / 5V Applicable battery type: 2 - 6 Li-Po, or 5 - 18 Ni-MH / Ni-Cd Maximum speed: 2 pole motor 210000 rev / min, 6 pole motor 70000 rev / min, 12 pole motor 35000 rev / min
Safety arming feature: Regardless the throttle stick position, the motor will not spin after battery connected. Throttle calibration funtion: Throttle range can be calibrated to be compatible with different transmitters. User programmable - Multiple program methods supported such as transmitter stick, LED Program Card. Compatible with Lipo and NiMH battery. Timing can be changed to be suitable for different brushless motors. Full protection: Low voltage cutoff protection / Over-heat protection / Throttle signal loss protection.