This is the Castle Creations Phoenix Edge Lite 200 25V 200AMP ESC.

Put your power system on a diet with the Phoenix Edge Lite series of ESCs. With the same functionality and amazing features of the Edge series, the Edge Lite offers a slight weight reduction without sacrificing power. it's the same brawn with less body - Phoenix Edge Lite.

The Edge series introduces a user programmable auxiliary wire capable of functions modelers have only dreamed of, until now. The white auxiliary wire can serve as an audible beacon after an “unexpected landing”, be used for helicopter governor gain input adjustments mid-flight, act as an RPM output for 3-axis gyros that support RPM sensors, be used as a receiver arming lock, or be used as an ESC arming lock (coupon for free Arming Lockout Key included). Combined with the data logging capability the Castle Creations Edge series of controllers offer, users can enjoy unparalleled versatility.

The Phoenix Edge series is intended for use in fixed wing aircraft up to 1.20 size and larger and helicopters ranging from 450 to 800 sizes. As always, the Castle Creations Phoenix Edge series of controllers gives you industry-leading software functions, data logging, and USB programming capability via Castle Link USB adapter.