hot bulb would explode as soon as the water touched it. your right... bsI dont believe you, sry..lol. Gonna have to call BS on this story lol.. The OP prolly just got paranoid and decided to make up some story about his plants getting killed etc.. You see at least 1-2 of these kind of threads each month lol. An HPS still lit underwater? Cmon man.. Seriously.I could be wrong, but I dont think so, lol.
Try some Rosetta Stone.......In Retrospect I should Have Taken A pic Of That Light Under Water I Still Find That Hard To Believe..... And Does Anyone Know Any Tasty Fruity Ultra high Ceiling Type Plant Variety Seed For My Next Grow... Ultra High Ceiling Being More Important....