4800mm Energy Saving 6PCS Blade China Designer High Volume Low Speed Big Fan

4800mm Energy Saving 6PCS Blade China Designer High Volume Low Speed Big Fan. High Volume Low Speed Design: Moves large amounts of air with large diameters and low rotating speed for efficient cooling. Energy Saving Performance: Saves about 90% energy compared to common small fans with low power consumption. Premium NORD Motor: Adopts Germany brand NORD motor for low noise, efficient, reliable and durable operation. Comprehensive Safety Protection: Five layers of safety measures ensure the fan will not fall with overload protection. Multi-Season Application: Provides cooling in summer by accelerating evaporation and circulates heat in winter. Durable Aluminum Alloy Blades: Made of magnesium aluminum alloy with unique airfoil design for massive air column. Long Life Span: Motor is free lubrication for life with double lip seals preventing oil leakage. CE and ISO Certified: All goods inspected 4 times by QC staff to meet CE, ISO, and ROHS requirements.