Thanks for the reply. I think I can agree with you on the lighting, it makes sense, but the lights didn't really dim every 40 seconds. It seemed like they just went whenever they wanted, sometimes it was about 40 secs, sometimes every 5 (shown in the clip).

I put the cam on full auto and it didn't seem like they dimmed at all, I'm not 100% on that though. But if full auto works, then there must be a way around it?