Responding in regards to the light so as to not clog up the introduction thread.
I was some of the old timers. Well I sent the strips as a gift from UK to US. To @Jellypowered who did your build.
Sounds to me like a driver issue. Are you running the strips on a meanwell? I’m pretty sure they have a thermal cutout. May be worth dimming the light. (There should be an inbuilt potentiometer. (Little rubber grommet on the underside comes off and you have a really small Phillips head dial type thing. with the light unplugged turn anti clockwise a bit)
If you could try that as a start and let me know how it goes. We will either continue to troubleshoot or you’ll be all good.
Cola