Ai red light?

[Eradliff]

Hey I have 2 Ai prime HD 16, sometimes the second one will flash to red and go back to normal, and it only happens at night when the lights are off, anyone know why? Only does it every so often
(One red flash)

 

[Alex Cataldo]

Is it the main LEDs that are doing this or the indicator LED on the back of the light? It will flash sometimes during simulated thunderstorms.