Out of control protection Low voltage protection Over-voltage protection With heat sink For 540 dual motor or single motor Functions: forward, reverse, and brake This power controller allows for easy replacement of the original unit without performance issues for slow tram motor boats Operational Guidelines: Connect the right side power supply battery to both ends of the wiring board with red wire for positive and black wire for negative. (Compatible with standard DC battery connection plugs: male plug / T-plug / banana plug) ESC output red and black wires connect to the red and black lines of the car 540 motor. Open the ESC power switch; if no signal input, the motor will emit a beep ~ beep ~ beep alarm sound. When the transmitter sends a signal tone, it confirms that the signal is connected and the system is receiving power and responding properly. Power range: 7.2V-16V Input voltage (recommended): 6-12 cells NiMH/NiCd or 2-4 cells LiPo Weight: 60g (including connectors and switches) BEC: 5.6V 2A Output current: 320A Color: Black Material: Metal + plastic Size: 47 x 42 x 33mm Package Contents: 1 x 320A Brushed ESC 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 to appear slightly different from the actual item. Measurement allowance is +/- 1-3cm.