The Industrial Fan also have Wall Type:
https://www.lampros.com.my/prod/MFJ-EW50-industrial-dc-wall-fan
The Industrial Fan is DC Motor, compare AC motor, DC to more Energy Save, DC Motor more durable than AC Motor Because DC Motor of the Temperature Heat is more stable. and our Brand of the Industrial Fan confirm 100% is Full Copper Motor.
AC motor = 170-180w (Max Speed) (3 Speed Modes)
DC motor = 50w (Max Speed) (4 Speed Modes)