I have an application puzzle for some smart guys or gals. I have a pool and the pool light went out. To fix the light, I have to waste 12K gallons of water. The light is below water level and we must drain about half the water out. The existing light is a flood light. Well, I feel wasting 12K gallons of water is such a waste of water and to only get 3 years of use out of the new bulb... I will have to waste another 12K... I considered upgrading the light to an led flood light when it struck me. What if I could use the existing 2 - 12ga with ground cable and control an AVR with these wires as well as supply power (dc).
Thanks in advance.