Add the on and off function to your NOCQUA Pro Power Kit (sold separately) with the NOCQUA Pro Power InLine Switch. With this switch, you are able to easily turn on and off your lights or electronics on your fishing kayak. This little button was designed to streamline your setup and preserve power without unplugging the battery. The color indicating LED light allows you to gauge the remaining battery life. Water-tight connection ports ensure complete functionality. On/off functionality Water-tight connection ports Color LED indicates remaining battery life Green: 100% - 75% Blue: 75% - 50% Red: 50% - 25% Flashing Red: 25% - 0% Quantity per pack: 1