Wish I had read the little warning around the pool light that says, 'Only turn on light while submerged' BEFORE I was draining the pool and turned on the light to see how low the water was at night. Quickly blew the 500w bulb...and they aren't cheap! Who'd a thunk the light needed to be cooled by the water.
But, part of my learning experience. And, figured out who to change the bulb next time without draining any water because of long electrical cord. Yay.