Is it possible to have a simple light switch that changes color? I have a point light that changes color in mobile preview if I set it to movable but not when I actually run it on the phone (galaxy S3).
It is doable, but currently you need to fake it all. Ie. make all materials with fake dynamic light graph.
There are multiple threads about faking dynamic lights on mobile.
You can also just make single dynamic point light and i think its either supported in 4.9 or will be in 4.10.
If you want just switch to change color you can assign simple dynamic material and change its color.