I got some 1142 tower LED automotive bulbs from
http://www.autolumination.com. They have opposed pins, so I
filed one off and installed them into Aqua Signal nav lights.
They work real well, really bright in stern and anchor lights,
they can easily be seen two miles away. They're up on eBay,
search on "1142 navigation". I think they're $19US now. These
people are very easy to deal with. I may try a couple of
their 12 volt spotlighty things with 30 LEDs in the red/green
lights.

I got two tower bulbs from ProfessorLED on eBay and in the end
they're very bright too, but there's a lot of hassle from the
seller. Originally he sold anchor light bulbs with a solar
switch and that's what I bought, but he recalled them and the
replacements had no solar switch, and for a rationalization he
didn't care what he said. I paid promptly by money order and
his computer generated a formal complaint that he had to
withdraw. For shipping I paid $18US for two bulbs and he paid
$2.10US. His web site shows some very nice bulbs, but they're
overpriced etc. etc. His illustrations all still show a solar
switch. The bulbs are indexed pins and they fit Aqua Signal
light sockets.

I wish someone else would start producing those things because
autolumination's bulbs are not indexed pins.. The towerLED
bulbs are very easy to produce if you're an electronics
technician. ProfessorLED manufactures his, I think in a 1/2
car garage sized operation.
--
Joe

Joe Kovacs
SV Sea Breeze