Today's Message Index:
----------------------
1. 05:43 AM - nice LED website (Sacha)
2. 05:16 PM - Landing Lights (BobbyPaulk@comcast.net)
3. 05:47 PM - Re: Landing light LEDs (rparigor@suffolk.lib.ny.us)
4. 06:28 PM - Re: Landing light LEDs (Fred Klein)
5. 11:14 PM - Re: Landing Lights (Sacha)
6. 11:19 PM - Re: Landing light LEDs (Sacha)
Message 1
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| Subject: | nice LED website |
This website sells different LED components and accessories and appears to
be well designed.
They have lots of technical info and some neat calculators (e.g. to
calculate the size of the heat sink you need, etc).
http://www.luxeonstar.com/
sacha
Message 2
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Guys
Check out these bulbs before making a huge investment. I don't know if they will
work on the Wig Wag circuit but several guys are using them as landing lights.
Takes a little ( easy ) modification but they can be fitted into the old GE
landing light incandescent socket. They have more lumens and sold for $49.95
six months ago. They are now $29.95 a copy.
Hope somebody can use this info.
Bobby
http://www.ebay.com/itm/2pcs-9-LED-Black-Car-Boat-Work-Light-Fog-Driving-Lamp-Bulb-Round-27W-DC-12V-24V-/171183850523
Message 3
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| Subject: | Re: Landing light LEDs |
Hi Fred
Prior to purchasing the LEDs I put up on the Europa org site, I borrowed
a pretty big box from a hangar neighbor who runs a auto parts store, and
also sells aviation lights. He had quite the assortment of Halogen auto
lights and an assortment of Aviation lights.
Hands down winner was the large (I think perhaps between 5+
6") lights as used on a Beechcraft. Probably 100 or perhaps even 150
watts, the reflector was secret of success.
The standard light as used by Cessna and Piper, slightly smaller in
diameter was the next best. They come in wide taxi or landing. I forget
if they are 100 or 50 watts.
A really good compromise was the same dimension as the Cessna and piper,
but half the watts. Again i forget, but either 25 or 50 watts. Yes slight
less light, but a lot less heat. Unfortunate don't have the real
estate on the Europa to use them.
Sorry for blabbing on and on, but it's not just the watt output, but
the size of the reflector and the relationship of the bulb to reflector.
I don't have any experience with a LED replacement for MR16. If you
can tolerate the heat, I think I would tend to just use what was supplied
and don't leave them on all the time (cycle when on ground). You
could try 50 perhaps 35 watt replacement bulbs? If only slight bit less
light, may be a good alternative.
Hmm, I wonder how much light you would get if you put two 75 watt bulbs
in series? Do you have two of them? Set up a relay to switch between
parallel and series for dual intensity?
If someone makes a good LED replacement, please let me know the details.
My guess is they (LED) can look bright from looking at the light, but may
not work as well as even a 35 watt halogen.
You didn't mention if they are for recognition, taxi or landing.
Ron P..
>
> Ron,
>
> You wrote:
>> I was at the Javitz center this past Sunday (bike show) and saw
some
>> pretty slick LEDs from Denali.
>>
>
> By any chance, do you know the specs and source for an LED version
of the
> 12v DC, MR16 halogen bulb, suitable for a landing light?
>
> I have a pair of wingtip combination position / landing lights
from
> CreativeAir...a company which is no longer around. The units combine
LED
> position lights w/ 75w halogen bulbs. I'm keen on replacing the
halogen
> bulbs w/ LEDs, and see that bulb manufacturers are now offering LED
bulbs
> to be retrofitted into the MR16 halogen fixtures. See:
>
> http://ledsmagazine.com/features/9/6/8
>
> The article, as informative as it may be, dwells on the special
issues of
> dimming and transformers, as many MR16s are used in display lighting
from
> 120v AC source.
>
> Can you help me out?
>
> thanks,
>
> Fred
Message 4
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| Subject: | Re: Landing light LEDs |
On Dec 18, 2013, at 5:46 PM, rparigor@suffolk.lib.ny.us wrote:
> If someone makes a good LED replacement, please let me know the
details. My guess is they (LED) can look bright from looking at the
light, but may not work as well as even a 35 watt halogen.
>
>
Ron...for an LED replacement of an MR16 halogen, this is the best I can
find...Fred
http://www.soraa.com/public/docs/Spec-Sheets-GU5.3-US/SS-Premium-2-12W-300
0K.pdf
Message 5
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I have been traipsing around with one of these mounted on the front of
my pickup truck for the past few months; they are probably not legal on
the road and only suitable for off-road driving as the beam is 30
degrees and illuminates everything around. They=99re great on
unlit roads at night though J. Right next to this on the truck I have a
6=9D or 7=9D 100W halogen and that has a much more focused
beam which lights up objects 2 or 3 times more intensely than the LED
but only within an angle of approx. 5 degrees. So the two together work
quite well in combination (the looks on the front of the truck are
terrible, but that=99s another story J).
On an a/c the LEDs would be fine as a taxi light and I guess ok as a
landing light as far as peripheral vision is concerned (I only have 5
hours night VFR so not really enough experience to judge) but the beam
seems to lack a bit of depth (though that=99s partially but not
entirely made up by their huge light output see Ron=99s
good point in the other thread the optics matter, not just the
raw lumens).
On my Kitfox there is not enough space for the LEDs and not enough power
for a 100W halogen, so the looks of my pickup truck are not going to
improve anytime soon.
FWIW
sacha
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
BobbyPaulk@comcast.net
Sent: Thursday, 19 December, 2013 02:16
Subject: AeroElectric-List: Landing Lights
Guys
Check out these bulbs before making a huge investment. I don't know if
they will work on the Wig Wag circuit but several guys are using them as
landing lights. Takes a little ( easy ) modification but they can be
fitted into the old GE landing light incandescent socket. They have more
lumens and sold for $49.95 six months ago. They are now $29.95 a copy.
Hope somebody can use this info.
Bobby
http://www.ebay.com/itm/2pcs-9-LED-Black-Car-Boat-Work-Light-Fog-Driving-
Lamp-Bulb-Round-27W-DC-12V-24V-/171183850523
Message 6
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| Subject: | Landing light LEDs |
Fred/Ron,
Ron...for an LED replacement of an MR16 halogen, this is the best I can
find...Fred
http://www.soraa.com/public/docs/Spec-Sheets-GU5.3-US/SS-Premium-2-12W-3000K
.pdf
I have six of these installed at home (electricity costs a bomb in Italy).
The light quality and intensity seems to me just as good as the halogen they
replaced.
Sacha
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