oops! yes it is a Glow Bouy!

It is just as the company describes it, it floats well or you can attach it via a suction cup to the side or tie it to the ladder/rope hooks...whatever you want.

I usually place mine midpool and attach with the suction cup.
I will time it for you when I get a chance, the website says about 6 hours which I think is accurate.

I have friends that had a traditional light in their pool with lots of problems. When they replaced liner they chose to eliminate the light. They borrowed my light and loved it.

You are so right...girls hate bats! But....
I have not noticed it attracting bats or bugs anymore than the flood lights do and still see if you are swimming with who or what you want to! We do have an occaisional little snake here in the woods!