The tri-colour bulb of course has LEDs evenly distributed through 360 degrees, presumably with overlapping focussing except at sector boundaries. I can't be so definite about its brightness as I can with the cabin bulbs, but I certainly have the impression it is much brighter, with good sharp sector differentiation.
Only snag is that the things are expensive compared with filament bulbs - £5-£6 instead of a pound- but hopefully they'll last a lot longer.
I'd be very cautious in replacing incandescent bulbs with led bulbs in navigation lights, to be honest I would not do it, but then it's just an opinion.
As an example, this is a sidelight with the original incandescent bulb
This is the same sidelight with a 40ish euro so-called type approved led cluster bulb
Yes, the above one is incandescent, the one below has a 20-30 led cluster.
I think this shows that depending on the optics-geometry of the lens of one particular lantern, there *may* or *may not* be a suitable replacement led, I'd personally be doubtful with "fits-it-all" solutions.
Also, I am absolutely no expert but people in the industry say that current lumen/watt ratio for leds can be 3 or 5 times the lumen/watt ratio for incandescent lights, which is in line with differences in consumption between incandescent bulbs and say Lopolight, Hella marine and the like (which come at their price); I personally tend to be a lot more suspicious when ten- or twentyfold differences in consumption are announced for 10quid bulbs.
Lumen for lumen, replacing and incandescent bulb with an halogen one reduces consumption by 30-50% for £3..
Just a thought :smile:
oh no, yet another sailing blog
I'd be interested in details of the LED bulb you used. Your photographs are completely at odds with my experience of fitting the bulbs last weekend.
Here is what I bought.
They are significantly larger than your LED bulb appears to be.
Other chandlers also sell them, it just happened that Marine Scene were the cheapest I found when I searched on the web. And the had an offer on delivery that tempted me into taking the risk of buying three. Unless I encounter unforseen problems in the next year or two I'd say I'm pretty satisfied. They claim they'll work for 50,000 hours of use.
Rather sad I know but while walking around SIBS noticed quite a few New boats seem to be going over to LED nav lights
Good! I think that's what counts in the end, if you are happy with your lights then so much the better :smile:
I'd just say that as leds are produced with technical characteristics (and related prices)going from 1 to 1000, and not knowing which type is used in the individual bulb (apart from a generic Ultra Super Bright Premium Extra Power Led), I guess there is plenty of room to be happy as there is to be unhappy.
To answer your question about the type of led of the pictures, those lights are not mine, I just copied the pictures of a rather unhappy customer which were posted here (first two messages),
49.90 euro each replacement bulb, and it wasn't the first (nor the last) of a series of threads complaining about led bulbs.
Mind you, with a "49.90" price it shouldn't be too difficult to find which brand of led it was, I'll have a look..
oh no, yet another sailing blog
My first thoughts were to buy one as an experiment, but I ended up buying the three.
In each case the LED bulb colour matched the filter on the housing, so I've no experience of using a white LED through a coloured filter.
They brought the measured current for the three lights down from ~6A to 0.8A, so I certainly plan to buy another white for the anchor light when I get around to it. I'm still in two minds about the tricolour as I expect it'd take a bit of care to line up correctly.