Piranha P3 Single item he Piranha P3 is a small yet ferociously powerful underwater LED light fixture that is equally at home mounted on a transom or hull side with its ultra sleek low profile. The Piranha P3 is incredibly easy to install , requiring just one small 13mm cable entry hole and 3 screw fixings. The smart internal driver features reverse polarity protection and active thermal management to prevent heat damage. The optical grade high impact polymer 60 degree lens has a Guard X protective coating to prevent marine growth. The P3 Piranha LED is recommended for boats up to 25'