Adopting a dedicated fixed-wing core algorithm program, the optimized software architecture makes motor control more handy. With strong current resistance. With multiple protection functions such as input voltage abnormality protection, battery low voltage protection, overheating protection, throttle signal loss protection, etc. With three start modes: normal start, soft start, and super soft start, compatible with fixed-wing aircraft and helicopters. Model:AT-55A Maximum continuous current:55A Maximum instantaneous current:75A BEC type:switch Colour:White Material:Metal Package Contents: 1 * Electronic Speed Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.