... approved Specification: Model Rated voltage Rated Frequency power Air output SRL12F 110-240V 50HZ-60HZ 30W ≥140M3/H SRL24F 110-240V ... /H Model Panel Size Mounting Hole Size Air vent Noise SRL12F 250X250mm 205X205MM 100MM ≤40db SRL24F 300X300mm 228X228MM 100MM ≤45db Model ... packing Size Net weight Gross weight Package SRL12F 52.5x39x52.5cm 15kg 16kg 8pcs SRL24F 63x39x63cm 16kg 17kg ...