Too bad we talking about outdoor your example is inside. Also you are not growing in the pool itself. dirrtydOf course it will work and there cheap at the end of the season. I have 10 that I used for 5 years and they are the dope for growing. I put one 1000w over it with a 5 ft parabolic reflector over a 5 foot pool.
I have the purple ones and am using one right now to hold some clones. I'll post a pic.
Too bad we talking about outdoor your example is inside. Also you are not growing in the pool itself. dirrtyd
Who said outdoors?