Here's the anchor light info
Okay Scott: The bulb for the anchor light on our h37.5 is:Perco #68, 12V-20W, Halogen, 120 BMD bulb. It is a bayonet mount with 2 stubs sticking out on the base.Now, hang onto your seat: it was $21.95.The good news for you is that the chandery where I bought this light bulb was way up north in northern BC Canada, and it was about 10 years ago. Did I over pay? yes, I did. However, we were a long way from any other store and we still had many days left to our long cruise. So, we didn't have many choices.After we got back to Seattle, we found the same bulb for a lot cheaper. I can't remember how much I paid for them in Seattle, but I think it was about $10 or so each. Anyway, I bought 2 bulbs at that time, since I was not about ready to pay a high price for it again. Now 10 years or so later, that $22 bulb is still working. Oh well....I believe the bulb is also available by Aqua Signal Corporation, it is #90400470, F/3106012.Aside from the high price I paid for that bulb, the worst part was that my wife had to crank me up twice. 1st time to retrieve the dead bulb, 2nd time to install the new one. She was not too thrilled.I think I bought the extra bulbs in Shilshole, by the railroad tracks, but I can't remember their name. I don't think that store is there anymore.