200Hz PWM is too low frequency, you can easily capture by your phone when taking slow motion or video.

I can understand the huge power dissipation of 72 diodes. But I think the big heat sinker + 3 fans, which should be enough for maximum power. In case overheating, you have complete safe protection of LED diodes.

meanwhile, I am questioning PWM. No sure the negative impact to fish or corals. Because nature lights, has no such PWM regulation.
If compare with US competitors, none of them take such low PWM frequency. All of them are using much higher frequency, e.g. 100KHz. It will be no impact to the photograph video taking.

Can you consider to improve this in next firmware upgrade?

PS, I know you provide the photo mode in GCC. But can you introduce on touch panel or GHL connect for quick access.
Thanks.