led upgrade for diving

[lyegrove]

I've got a couple of Ikelite Mini C dive torches, (4xC cell) that are battery guzzlers with the halogen's as fitted, can you reccomend a drop in replacement LED unit? Current bulb as illustrated below. Thanks!


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[TD="class: desc"]Bulb, 6V 4W, Kr filled
Extended burn time, for lights with 4-cell batt. packs.
ikelite #0042.52[/TD]
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[GaAslamp]

:welcome:

Some examples were given during a recent discussion on this forum, assuming that you need a standard PR-type bulb (sure looks like it):

http://www.candlepowerforums.com/vb/showthread.php?330018

Dorcy has a 6V version with model number 41-1644. The nice thing about the Dorcy drop-ins is that even though the type of LED they use has some disadvantages, they are very efficient, inexpensive, and they have a built-in "diode bridge" that allows them to function regardless of polarity, much like an incandescent bulb (as far as I know, the others are sensitive to polarity). It should be just about as bright as the bulb that you're currently using, I would expect, but it will stay bright and run for much longer. The other drop-ins may be slightly brighter and have a purer white tint (unless you're unlucky and get a sickly greenish one :green:), but they're more expensive and probably not as efficient. I doubt that any of these drop-ins are as bright as the halogen bulbs are when the latter are running on fresh cells, though.

 

[lyegrove]

Thanks for the quick response, I'll do some more digging through the forum archives...what a wealth of knowledge!

Only problem I might have is sourcing kit or spares given that I live across the pond....another Brit. joins the fray!:thumbsup:

 

[DM51]

Welcome to CPF, lyegrove :)

FYI, we also have a dedicated Dive Lighting section here - worth a look!