Maybe that is it.
It was weird though. The first night I didn't really think to much of it, thought he just simply happened to wake up right as I turned on the bulbs.
But tonight...he totally ignored the other lights, no reaction out of it. When I put the amber one's back in ...WHAM, instant awake, bright eyed and bushy tailed ! No stress, no fear, just the mighty hunter awoke and was all over the place and esp. waiting for me to open the door.
So weird..