Racerstar 120A ESC Brushless Waterproof Sensorless 1 8 RC Car PartDescription Brand RacerstarItem Brushless 120A ESCWaterproof Level Splash proofESC Features Specially desighed for RC car with excellent start up acceleration and linearity feartures Compatible with sensorless brushless motor The strong resistant current capability excellent heat dissipation Multiple protection features low voltage cut off protection for lithium or nickel battery over heat protection throtttle signal loss protection motor blocked protection Easily programmed and compatible with pocket sized program cardESC Specifications Model25A35A45A60A80A120ACont Current Burst Current25A 100A35A 120A45A 180A60A 320A80A 480A120A 600AMotor TypeSensorless Brushless MotorSuitableCar1 18 1 161 18 1 16 1 141 101 101 81 8Suitable Brushless Motor12T12T9T9T5 5T3 5TResistance0 004ohm0 003ohm0 0014ohm0 0007ohm0 0005ohm0 00035ohmBattery2 cells Lipo4 6 cells NiMH2 3 cells Lipo4 9 cells NiMH2 3 cells Lipo4 9 cells NiMH2 3 cells Lipo4 9 cells NiMH2 4 cells Lipo4 12 cells NiMH2 6 cells Lipo4 18 cells NiMHBEC Output5V 2A analog mode 5V 2A analog mode 5 8V 3A switch mode 5 8V 3A switch mode 6 1V 3A switch mode 6 1V 3A switch mode Dimension25 30 14 5mm25 30 18 5mm32 5 34 24mm32 5 34 24mm41 51 36mm41 51 36mmInstructions 1 Connect BEC wires with the receiver2 Connect motor wires with ESC3 Turn on the transmitter4 Connect battery pack with ESC then switch o