Electric roller film reels are used for opening and closing side and roof windows of plastic film greenhouses, replacing traditional manual roller film reels to achieve quick winding and unwinding of films and automatic control of the greenhouse environment. The electric roller film reels feature a drive shaft made of Φ25*1.5 or Φ20*1.5 thin-walled galvanized pipe. They are characterized by their light weight, high output torque, automatic locking, high precision stroke adjustment, wide adjustment range, waterproofing, condensation prevention, and low power consumption, making them suitable for use under various climatic conditions and are the choice for modern greenhouse structures.