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Old Sep 15, 2005, 11:58 AM
Medve is offline
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1 watt ultra bright LED's for night flying


Just got my All Electronics catalog in the mail, and they have 1 watt LED for a reasonable price. These are VERY bright. I have a flashlight with one in it.
colors are red, green, amber, white, and blue. Prices are from $8-$11.50ea.
100 degree viewing angle, Max. forward voltage 4vdc, max forward current:350/700ma. The part numbers are from LED-109 through LED-113.
Their web site is www.allelectronics.com
Just thought I'd pass this along.
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Old Sep 15, 2005, 12:54 PM
minifly is offline
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dunno, it might be so bright that you lose your night vision.

but seriously, don't you think they are a bit of an overkill?

even the normal 1/10 - 1/20 of a watt are pretty bright...
Old Sep 15, 2005, 12:58 PM
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besides at a couple of them you would have to use a new UBEC to drive them!!!
Old Sep 15, 2005, 01:54 PM
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The real question would be what their light output is at a more reasonable drive current (30mA or so).

The 100 degree viewing angle is very nice though. If the diffusion is reasonably even over that range, then we're talking something pretty reasonable. Pricing seems a bit extreme though.

= Mike
Old Sep 15, 2005, 03:13 PM
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you can just use one forward facing one as you come in to land.
will light up your runway.
Old Sep 15, 2005, 03:36 PM
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well I can only assume there must be a good reason as to why some other nite light manufacturers who actually make/sell night flight modules for plane have not used these 1 watt LEDS..over the more popular 1/8-1/4 watt LEDS..if they were that much better at illuminating..and one would only need 2 or 3 of them,,to do the job that 4 or more of the smaller ones would do..there has to be a reason why no one is using them..whetehr its because current draw is to much..or possibly the light uotput isnt that much more noticeable for night flying/viewing....
Old Sep 15, 2005, 03:38 PM
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is it possible that they would get to hot..becuase of the higher current they need to function at 100%..and would not be advisable to use on foam/balsa wood...???
Old Sep 15, 2005, 03:39 PM
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Just to put things in perspective, I can see the LEDs on my Curtek system (suitably scuffed with 400 grit sandpaper) from a height at which the plane itself is no longer clearly visible to the naked eye.

= Mike
Old Sep 15, 2005, 05:55 PM
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All the night flying I've done I can say that there most certainly is such a thing as too bright

For dusk flying it isn't as bad, but if you are flying in darkness and you get a blast of LED light right in you eye, even from 300', you'll be seeing spots and have a helluva time keeping it in perspective.

And YES, that can happen even with the lights pointed at the airplane. I now put heat shrink around the bulbs so that only the tip is showing and to help ensure it only lights up the airplane with no stray light.
Old Sep 15, 2005, 06:01 PM
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They sure do make great flashlights though for finding models after you've flown just a bit too long after dark !!!The little ones work just fine on planes and don't draw nearly the current .... love the flashing ones too ....
Old Sep 15, 2005, 07:19 PM
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gpw guitar...is that a new brand name of guitars beign made/sold/?..ive never heard of them
Old Sep 15, 2005, 09:01 PM
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Aw just put in a couple of luxeon star LEDS and turn night back into day

http://www.lumileds.com/products/family.cfm?familyId=2
Old Sep 15, 2005, 09:36 PM
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I have one of the white ones. You would probably need to use a current limiting circuit of some type. I do not use them on my plane(s). I use them for outdoor lighting. They do get rather warm.
Old Sep 15, 2005, 10:12 PM
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Wallmart special!


Hi Guys,

I have tried the night flying...its fun. I made a b25 foamy powered by two CDrom motors that I wasn't afraid to destroy when night flying...Try it!
(https://www.rcgroups.com/forums/showthread.php?t=406909)

At night, its a blast. I crashed it many times...a bit of superglue and tape and were back into biz. Flying at night is much harder than flying during the day, I think.

Any ways...

I found a tiny LED light at walmart for $2.50 each. I put one at each end of the wing and pointed it twards the fuse. One green, one white. Its like having a spotlight shining at the plane at all times. They illuminated the fuse and underwing perfectly. Then, I put one under the nose for a headlight. So, for $7.50, I got a night flyer. They are powered by 3 tiny button batteries. Also, to make things easier, you could try having a buddy shine a million candlepower spotlite at the plane until you get the hang of the night flying thing.

They are called "Garrity Glo light", upc#74196 00445. My walmart has them in the flashlite section, and they are $2.50. They come in all kinds of colors, but I nabbed some white and green ones. The kids LOVE them..they run forever on the batteries it seems.

I can't find them on the Wallmart site, but I found them by doing a search so you see them:
http://www.branders.com/s/Logoed-Glo...oom-50355.html
( I think these guys must put your logo and such on them...) Again, hit wallmart, they are $2.50

I snapped the long tube off, leaving the light/switch/battery part. It only weighs 14 grams each. You can build the plane too in just a few hours: https://www.rcgroups.com/forums/showthread.php?t=406909 (shameless plug for my plane I love so much.)

I originally had dreams of stripping it down to the LED, then wire into the plane using their batteries... But, they are so light, I just hot melt glued them to the wings, pointing towards the fuse.
Take care, good luck.
Old Sep 16, 2005, 03:33 AM
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The best price I've found on Bright led lights is at an Ebay store.
http://stores.ebay.com/LED-Store
I really like the three color leds that he sells. You can pump almost any voltage to them and they take it. I guess it's because they only flash each color is the reason that they don't burn out.
Best if you use the proper resistor though.
Curtek makes a nice light system for turnkey rc ops.
http://www.curtek.com
They have wide angle lenses and Rc control options.
Dollar stores here in Oregon carry lots of nice led flasher packages that can be seen in an rc plane for quite a distance.
Also there are several vendors on Ebay that sell flashing led packages as well as light weight keychain led lights that can be seen for well over a mile.
I have over 36 led lights on my slow stick and I find that as long as I stay with a known color in the front (for me it's 3blues with two bright landing lights,) and a known color facing back (for me it's 3orange, 2yellow and 2lashing pink,) then all the other lights can be any other color or even flash any combo of other colors and I still can tell what the plane is doing and fly it with no confusion .
In fact it's much easier to fly at night than in the day.
For a really weird look that brings people from miles away.
Take a cheap led keychain light and hook it too your night flyer with about ten to twenty feet of thread and fly that around doing some loops and tight turns.
Looks really wild. Ad two or more of these and even the local "tweakers" will repent and go to church on sunday.
Bill


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