Spektrum RC Firma Sensorless Brushless Motor (3300Kv)

Spektrum Firma Sensorless 3300kv Brushless Motor. 

Specifications:
Operation Voltage: 2S-3S/12.6V
RPM/Volt: 3300kv
Current@12V: 4.5+/- 1.0A
Maximum Continuous Current: 33A
Output: 430W (2S)/780W (3S)
Efficiency: 82%
Motor Diameter: 36mm
Motor Length: 52mm
Weight: 200g
Shaft Extension Length: 15mm +/-.5mm
Shaft Diameter: 3.175mm
Rotor Type: 4 Pole
Plug: 4mm Male Bullet
Extension Wire Length: 120mm +/-10mm