Dedicated variable frequency fan:

Mitsubishi variable frequency three-wire fans MMF-06D24ES(28 yuan/Taiwan), MMF-06F24ES(28 yuan/Taiwan), MMF-06D24DS(28 yuan/Taiwan), An Chuan variable frequency fans MMF-06D24DM (28 yuan/Taiwan), MMF-09D24TS(38 yuan/Taiwan), etc. MMF-09C24TS(38 yuan/Taiwan), MMF-12B24RH-R01(40 yuan/Taiwan), MMF-12D24DS-RM1(58 yuan), MMF-/KLOC. 6G5 and 676GL5 inverter fans 59 16 Delta inverter fans EFB0912he (35 yuan/Taiwan), Delta inverter fans AFB0912he (35 yuan/Taiwan), An Chuan inverter three-wire fans ASF603B2404 and ASF6238240. Fuji 5000VG5N variable frequency fan 47 15KL-05W-B39, Shilin E044 variable frequency three-wire fan, An Chuan variable frequency three-wire fan 47 10NL-05W-B49. (Buy more than ten at a special price)