Nightcarnage2020

Hello Im upgrading my pc and want to replace the fans.(3x200mm, 1x140mm) I looked up my case on thermaltake page and it stated "Fan speed and light controller are only compatible with built in 200mm LED fans. To avoid on damaging the circuit board, please do not connect it with other fans" Does this mean I can only replace with that exact fans? or can they be other fans of the same size? Do they have to be thermaltake? Also i dont believe i see the exact fans that came with my case for sale at thermaltake.