Navigation / All around light bulb size

Come on Greg. I'm almost 71, just finished staining 2 decks, taking down half a tree and mowing 2 acres. Seriously speaking though you should have someone on board who can do these things. God forbid you're running at night sometime and it needs to be changed. Waiting to do it when you get to shore could get you killed when another boat can't tell what direction you're traveling. I hear kids are good for this sort of thing. Maybe you can borrow one if you don't have one of your own. Have you checked your spares drawer? Hopefully you have some there. If not 2 trips up still beats potentially 2 trips up plus 2 trip to the store.

This is funny and not meant to be dis-respectful;
With this idea and not knowing the mfg of the socket, plan on at least $225 of lamps in your pocket when you climb up for a one visit repair.
There are just to many bayonet designs that go up there.
AND, please consider a LED replacement that will help you not to go back up there anytime soon.
Pull the bulb and then go shopping.
Please be careful. We want to hear back from you.

Bring a small stainless steel brush, contact cleaner and a couple of shop towels. Also a needle nose pliers. Leave the light switch on too. I think we should bet a bottle of rum on the number of trips up with no helper. What do you guy's think? 1,2,3,4 or 5 trips up.

It’s a good quality led? Just asking because typically nothing in the led world that is true marine quality that will last more than a season is $10... hopefully it’s not a “bestsuperextraled” type brand.

(and this is coming from the guy with the $20 Rubbermaid steps.. but sometimes there are areas where you just shouldn’t ever skimp.)

Not only are LED hit and miss, the fixture requires a very specific bulb and wattage for visibility per regulation for the size of the boat. Need to match or exceed wattage/lumen. That's a tricky conversion to LED. Wouldn't want a clever insurance adjuster to pin the blame on your bulb and deny your coverage...just sayin'. Don't mess with the ability for others to see you at night and for the insurance to actually, you know, insure.

In the end I ran this gauntlet, weighed it out, made the change to modern fixtures.

https://www.perko.com/catalog/category_products/lighting_fixtures-bulbs/