we purchased direct from Tmotors company as a dealer.you can verify from T motors.
The Tmotor AS series is designed for fixed-wing aircraft. It is cheaper than the AT series, but manufactured with the same quality standards as the high-end AT.
 
Features:
Light and robust, hardness assured.
Reduced moment of inertia, rapid response and 0 delay.
Smooth and precise operation.
thrust: 1657 grams
voltage. 3s,4s
propeller support:
8*6  inch 
9*6  inch
Weight: 81 grams
Power 712W / Peak Current 48A
 
package includes:
motor with acceossries