They are waterproof LED strips just used the 3M adhesive on the back to stick them to a piece of 3/4" PVC. Drilled holes on either ends. At the bottom I just taped it off and siliconed it in. At the top I ran the wires out the top and siliconed from the sand to the top of the pipe with wires sticking out. 8 AA batteries = 12v. So that's my power source... I suck it in the pond this evening to see what it looks like and didnt appear as bright as I had hoped (of course). Illuminated about a 6 ft diameter around it.