So I need the best way to add light to the pool wall in these pictures. I have up lighting for plants, however, you will see what is missing at night!! I need it to be in the ground in front of the pool (where the rocks are) and shine across to it. Wall is about 15-20 ft across and the area the lights will be is about 20-25 ft away. Maybe a multi-mount with 2 lights or just one? What lights should I get to throw that far?