This is the Castle Creations Phoenix-25 amp Brushless Sensorless ESC. This speed control is specifically designed for Brushless application. NOT to be used with Brushed motors. Doing so will ruin ESC. FEATURES: Extremely low resistance (.013 Ohm) High rate (11kHz) switching Up to 25A continuous current with proper air flow, 35A surge Five to eight cells with four micro servos Up to ten cells with three micro servos 16 cells max with BEC disabled Dynamic braking ensures folding props fold properly BEC (1.5A) provides power to receiver and servos-eliminates need for a separate receiver battery User programmable features: Low voltage cutoff Over-current protection Brake type Throttle range Timing advance Cutoff type Soft start Ramp Up Runs motor in forward or reverse Auto motor in cutoff with reset Safe Power ON arming program ensures motor won"t accidentally turn ON Low torque soft start prevents damage to fragile gearboxes Auto Shut Down when signal is lost or radio interference becomes severe INCLUDES: Instruction sheets Phoenix 25 ESC REQUIRES: Soldering to motor and connector Soldering iron HCAR0775 Solder Battery connector (specific to customer"s connectors) SPECS: Length: 1.5" (37mm) Width: 1" (25.4mm) Height: 3/16" thick (5mm) Wire Length: 4" (102mm) motor ends 5.5" (140mm) battery end 7" (178mm) servo wire with Universal connecter COMMENTS: Be sure to have correct polarity, incorrect polarity can damage the speed control unit dda 05/09/04 ir/jxs