When we built Hawk good LED's were not available yet, so we put on the old standard Aqua Signal series 40 nav lights.

The deck level (port and starboard bow, and stern lights) Aqua Signals have proven to be NOT waterproof and corrode easily and the fixture has to be replaced about every 3-4 years. This is a PITA, especially because we don't use them much (they are the 'motoring' lights). These I have just replaced with Lopos. Lopos are now the standard 'superyacht' nav light and are well built and well sealed but expensive.

The masthead aqua signal (Tricolor) has been reliable but we use it while sailing and it draws too much power. We have just gotten a replacement led bulb from Cruising Solutions to fit the old Aqua Signal fixture.

The anchor light we prefer down at the boom level rather than up at the masthead and I have just bought two Bebi Owl lights for that purpose.