When installing LED lights on a pontoon boat, it's essential to be aware of some common mistakes people make. For example, many people don't realize that each set of LEDs needs to be connected to a controller with 12-volt power in order for the lights to work correctly. Additionally, it's essential not to exceed the recommended mounting height when installing underwater LEDs. If you go over the height limit, you risk damaging the light or, even worse, causing an electrical fire on your boat. It's also a good idea to install lights above the waterline if possible, as they will shine brighter underwater due to light attenuation in the water column (approx 4 meters). And finally, remember to angle the LED light downwards at 10 degrees in order for it to shine down into the water.