The Patent No. HK1060021
Chinese Utiliy Model No. ZL200420047710.1

6" Round Ventilating Fan (Optional: with Louver):
Power: 14W
Voltage: 220-230V
Installation Size: dia.186mm
Size: dia.211x81mm
Fan Speed(R.P.M): 2050
Air Volume (CMH/CFH): 222/7837

8" Round Ventilating Fan (Optional: with Louver):
Power: 16W
Voltage: 220-240V
Installation Size: dia.247mm
Size: dia.270x100mm
Fan Speed(R.P.M): 1550
Air Volume (CMH/CFH): 380/13414