Wondering if one of the smaller, shallow water GloBrites is sufficient to light up our shunshelf that is a 6x16 rectangle. We were planning on installing one on one of the short sides. The pool itself is also a rectangle ... sunshelf sits on one end...pool will have two of the larger led’s on the same side as the sunshelf light. We opted against the led bubblers, and the GloBrite is the only other lighting option we could find for shallow water. Thoughts?