Features

Features : 
1 High performance microprocessor, best compatibility with all kinds of motors, highest driving efficiency.
2 Three types of start mode: Normal / Soft / Very-Soft, compatible with aircraft and helicopter.
3 Smooth, linear, quick and precise throttle response.
4 Multiple protection features: Low-voltage cut-off protection / Over-heat protection / Throttle signal loss protection.
5 The throttle signal is transferred through optical/electrical coupled system to avoid electromagnetic interference.
6 Perfect governor mode for Multiro-copter.
7 Wide-opened heat-sink has the best heat dissipation effect.
8 The firmware of the ESC can be updated through the built-in USB adapter in the Professional LCD Program Box.
9 User programmable.
10 Multiple program methods supported: transmitter stick, Digital LED Program Card, Multifunction LCD Program Box, Professional LCD Program Box, PC software. Very easy to program the ESC at home or at the flying field.

T-MOTOR 40A OPTO Speed Controller T40A Pro

Specification

1 Output:  Continuous 40A, burst 60A up to 10 seconds.
2 Input Voltage:  2-6 cells lithium battery or 5-18 cells NiMH battery.  
3 Refresh rate of the throttle signal: 50Hz to 432Hz.
4 Control Signal Transmission: Optical/electrical coupled system.
5 Max Speed:  210000rpm for 2 Poles BLM, 70000rpm for 6 poles BLM, 35000rpm for 12 poles BLM.      (BLM = BrushLess Motor)
6 Size:  59mm (L) * 27mm (W) * 12mm (H).
7. Weight:  29g. 
8. Built-in connector type: 3.5mm banana type (connectors for motor side are not included)