ITEM NAME:for FPV RC Car Boat Toys Airplane 40A Brushless ESC Motors Speed Controller 5V Description Specifications: Size: Approx.68 x 25 x 8 mm Working current: 40A Maximum current: 55A (10 seconds) BEC: Yes, 2A / 5V Applicable battery type: 2 - 3 Li-Po, or 5 - 9 Ni-MH / Ni-Cd Maximum speed: 2 pole motor 210000 rev / min, 6 pole motor 70000 rev / min, 12 pole motor 35000 rev / min Brake setting: no brakes / brakes Battery type: lithium battery / nickel hydrogen Low voltage protection mode: soft shutdown / hard shutdown Low voltage protection threshold: low / medium / high Start mode: normal / soft / super soft start Angle: low / medium / high Restore factory defaults Features: Safe power-up function: When the power is turned on, the throttle stick does not start the motor immediately and avoid any personal injury. Throttle trip adjustment function: to adapt to different remote control throttle stroke difference, improve the throttle response linearity. Undervoltage protection: when the battery voltage is lower than the protection threshold, the automatic reduction in output power. Overvoltage protection: the input voltage exceeds the input allowable range does not start, automatic protection, while issuing a rapid "beep" alarm sound. Overheat protection: built-in temperature detection circuit, MOS tube temperature is too high when the automatic turn off. Remote control signal loss protection: remote control signal is lost 1 second after the reduction of power, and then 2 seconds without remote control signal is turned off the output. Package Included: 1XÂ Brushless ESC Speed Controller Notes: The colors may be a little difference for the different monitor display. Please allow minor deviation due to manual measurement..Working current: 40A. Maximum speed: 2 pole motor 210000 rev / min, 6 pole motor 70000 rev / min, 12 pole motor 35000 rev / min. BEC: Yes, 2A / 5V. Overheat protection: built-in temperature detection circuit, MOS tube temperature is too high when the automatic turn off.