A:AnswerThe product your asking about is a light that attaches to the housing. It says in the description..its for a Hero 3+, Hero 4 or a Hero 5 it doesn't mention the original hero. The original has a totally different housing.
A:AnswerThe LED Action light does not fit the Hero7 Black waterproof case - it does not fit flush. I had to mount mine with the camera on the opposite mounting bracket and the LED light on the other, offset (opposite from normal setup).