@herf Thanks, that really helps. So, bright light will still have it's normal effect, along with this "extra effect" after dim light, so you still say dim light before that, will be better if the times aren't predictable. I'm glad I won't think too much into this effect now, but I'm glad it's on your research page.
I'm good on the dim bathroom light, I have two I can choose from, and one gets extremely hand burning hot (I have to turn it into the socket each time) using 20 watts, and the other no where near that level of heat using 24.5 watts. I like the dimmer more orange looking light, but wow it hurts! It's more orange, the other is a gold yellow and I don't like it as much.