Masthead light - bulb types

iamtjc

iamtjc

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When we are allowed back to our boats I'm planning on replacing the bulbs in my masthead lights on my (new to me) Hunter 272
I would like to buy the replacements and go up the mast just once. I don't relish multiple trips up the mast to find out what the bulbs are, buy replacements and up again to fit.
Does anyone recognise these lights? Are they likely to be festoon bulbs or bayonet, or do all these things look similar from the outside making it impossible to tell?

Masthead Light.jpg
 
Sorry, should have said I'm looking to replace with LED bulbs. Otherwise I would just buy spares of each type, but good LEDs can be a bit pricy to do that.
 
The square shaped top suggests Lalizas
Aqua Signal and Hella are both round so neither of them

Almost certainly bayonet fitting at the mast head but be aware that there are various bayonet fittings

The trouble you may have if you fit a proper tricolour LED ( rather than a warm-white white LED) is aligning it with the coloured lens
I fitted one many years ago to an Aquasignal. The LED unit I bought came with a replacement holder which had to be fitted to get the alignment correct. I would not have liked to attempt this up the mast.
It was also impossible to identify the coloured sectors without powering up , and marking it first!

Similar to this
1611067044087.png

Once you are sure of the type of lantern go to Boatlamps - Marine LED bulbs and replacement lamps for all boats for the replacement "bulbs". They should be able supply good quality products which will fit your lantern without all the faf of replacement bulb holders.

See Boatlamps website for advice generally on LED replacements.
 
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Odd... No one's come along yet to tell you that the colour will be all wrong, the cutoffs won't be right, you're in infraction of the Colregs and will, at best, die, at worst, bring about the end of the world.

All these things may or may not be true, but that LED that's still working up there will always be better than the blown filament lamp in the middle of the separation zone, when it's too bumpy to go up the mast and change it.
 
Did you ave a look at the spares on the boat , there's often a spare set of Nav bulbs pushed into some locker ! You might be able to get the fitting type from that. Take a look at the Boatlamps UK site , Notice that there are two versions of most lamps, one has the two locator pins in the same axis , one has them slightly off set,-that's important. I found Boatlamps UK very helpful, Id imagine that if you showed them the masthead photo that they might know the bulb type,

Kinsale 373
 
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