Suitable for 28xx size brushless out runner. Includes 4,0 mm adapter for fixing the motor to the fan. 500 + Watts with 4s lipo (2850kv @ 4s lipo). This comes with plastic parts and is not as strong as the StarMax fan.

Batteries: 4 cell Li-Poly
Dimension: Ф70 x 74 mm
Weight: 110g (with motor, motor not included)
Recommended Model Weight: 950-1100g
Use for Model: Single ducted fans model